{"id":40974,"date":"2025-06-11T12:16:57","date_gmt":"2025-06-11T04:16:57","guid":{"rendered":"https:\/\/zetarmold.com\/?p=40974"},"modified":"2026-04-04T10:31:44","modified_gmt":"2026-04-04T02:31:44","slug":"materiais-de-moldagem-por-injecao-2","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/pt\/materiais-de-moldagem-por-injecao-2\/","title":{"rendered":"10 materiais populares para moldagem por inje\u00e7\u00e3o e respectivas propriedades"},"content":{"rendered":"<figure class=\"wp-block-embed is-type-rich is-provider-spotify wp-block-embed-spotify wp-embed-aspect-21-9 wp-has-aspect-ratio\">\n<div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Spotify Embed: 10 materiais populares de moldagem por inje\u00e7\u00e3o e respectivas propriedades\" style=\"border-radius: 12px\" width=\"100%\" height=\"152\" frameborder=\"0\" allowfullscreen allow=\"autoplay; clipboard-write; encrypted-media; fullscreen; picture-in-picture\" loading=\"lazy\" src=\"https:\/\/open.spotify.com\/embed\/episode\/2mfzdQ6w8MpnArydMaFWs4?si=AuTpdYFhTEK5x770I0eWXw&#038;utm_source=oembed\"><\/iframe>\n<\/div>\n<\/figure>\n<p>Introdu\u00e7\u00e3o:<strong> O processo de moldagem por inje\u00e7\u00e3o \u00e9 famoso pela sua vasta gama de aplica\u00e7\u00f5es. Uma das raz\u00f5es para o seu sucesso \u00e9 a grande variedade de aplica\u00e7\u00f5es de pl\u00e1stico. <a href=\"https:\/\/zetarmold.com\/pt\/\" data-type=\"link\" data-id=\"https:\/\/zetarmold.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">moldagem por inje\u00e7\u00e3o<\/a> material que pode ser utilizado na moldagem por inje\u00e7\u00e3o.<\/strong><\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1028 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runrivYKCu_IUI_Injection_molding_of_vario_75f8df7f-4a4e-4276-8a68-e2e4023c4c02_3-1.jpg\" alt=\"\" class=\"wp-image-41003\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runrivYKCu_IUI_Injection_molding_of_vario_75f8df7f-4a4e-4276-8a68-e2e4023c4c02_3-1.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runrivYKCu_IUI_Injection_molding_of_vario_75f8df7f-4a4e-4276-8a68-e2e4023c4c02_3-1-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>Neste artigo, vamos falar sobre alguns dos pl\u00e1sticos mais comuns utilizados na moldagem por inje\u00e7\u00e3o. Iremos rever o que s\u00e3o, para que servem, para que n\u00e3o s\u00e3o t\u00e3o bons e para que s\u00e3o utilizados. Tamb\u00e9m falaremos sobre os diferentes graus de cada pl\u00e1stico.<\/strong><\/p>\n<h2 class=\"wp-block-heading\"><strong>Acr\u00edlico (PMMA)<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"><strong>Defini\u00e7\u00e3o de PMMA<\/strong><\/h3>\n<p>O PMMA, ou acr\u00edlico, \u00e9 um termopl\u00e1stico forte e transparente que \u00e9 uma alternativa mais leve e \u00e0 prova de estilha\u00e7os ao vidro. Como o PMMA \u00e9 transparente e tem uma excelente claridade \u00f3tica, deixa passar muita luz.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1029 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"375\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/pmma1.jpg\" alt=\"\" class=\"wp-image-40171\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/pmma1.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/pmma1-300x188.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Defini\u00e7\u00e3o de PMMA<\/strong><\/h3>\n<p>A resina acr\u00edlica \u00e9 forte, aguenta o peso, n\u00e3o tem cheiro e pode ser transformada em objectos com o tamanho exato. Tamb\u00e9m n\u00e3o se estraga com o sol ou com as condi\u00e7\u00f5es climat\u00e9ricas, pelo que pode ser utilizada no exterior. N\u00e3o se decomp\u00f5e quando se molha, pelo que n\u00e3o liberta bisfenol A (BPA), um qu\u00edmico presente em muitos pl\u00e1sticos que \u00e9 mau para as pessoas.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Vantagens do PMMA<\/strong><\/h3>\n<p>A resina acr\u00edlica tem algumas limita\u00e7\u00f5es importantes. S\u00e3o mais caras do que o vidro e s\u00e3o mais suscept\u00edveis de riscar. Tamb\u00e9m s\u00e3o facilmente manchadas por gordura e \u00f3leo. Al\u00e9m disso, o PMMA \u00e9 utilizado a uma temperatura demasiado baixa para algumas aplica\u00e7\u00f5es industriais.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1030 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runF0znDyT992E_Injection_molding_of_vario_f4506c61-f6b1-4c90-9efb-8fd9ee770056_3-2.jpg\" alt=\"\" class=\"wp-image-40977\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runF0znDyT992E_Injection_molding_of_vario_f4506c61-f6b1-4c90-9efb-8fd9ee770056_3-2.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runF0znDyT992E_Injection_molding_of_vario_f4506c61-f6b1-4c90-9efb-8fd9ee770056_3-2-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>Os acr\u00edlicos moldados por inje\u00e7\u00e3o n\u00e3o t\u00eam uma forte resist\u00eancia aos solventes e s\u00e3o suscept\u00edveis de fissuras por tens\u00e3o sob cargas particularmente pesadas.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Desvantagens de <strong>PMMA<\/strong><\/strong><\/h3>\n<p>A resina acr\u00edlica tem algumas limita\u00e7\u00f5es importantes. S\u00e3o mais caras do que o vidro e s\u00e3o mais suscept\u00edveis de riscar. Tamb\u00e9m s\u00e3o facilmente manchadas por gordura e \u00f3leo. Al\u00e9m disso, o PMMA \u00e9 utilizado a uma temperatura demasiado baixa para algumas aplica\u00e7\u00f5es industriais.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1031 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runF0znDyT992E_Injection_molding_of_vario_f4506c61-f6b1-4c90-9efb-8fd9ee770056_1-1.jpg\" alt=\"\" class=\"wp-image-40978\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runF0znDyT992E_Injection_molding_of_vario_f4506c61-f6b1-4c90-9efb-8fd9ee770056_1-1.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runF0znDyT992E_Injection_molding_of_vario_f4506c61-f6b1-4c90-9efb-8fd9ee770056_1-1-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>Os acr\u00edlicos moldados por inje\u00e7\u00e3o n\u00e3o t\u00eam uma forte resist\u00eancia aos solventes e s\u00e3o suscept\u00edveis de fissuras por tens\u00e3o sob cargas particularmente pesadas.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Aplica\u00e7\u00f5es de PMMA<\/strong><\/h3>\n<p>Os acr\u00edlicos s\u00e3o utilizados em janelas, estufas, pain\u00e9is solares, divis\u00f3rias de casas de banho e outros materiais transparentes para edif\u00edcios e luzes.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1032 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runvpFPwdTSMQU_Injection_molding_of_vario_8785b7ff-dbb4-470e-a8f7-c3e0934ab2a2_0.jpg\" alt=\"\" class=\"wp-image-40979\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runvpFPwdTSMQU_Injection_molding_of_vario_8785b7ff-dbb4-470e-a8f7-c3e0934ab2a2_0.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runvpFPwdTSMQU_Injection_molding_of_vario_8785b7ff-dbb4-470e-a8f7-c3e0934ab2a2_0-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Classes de PMMA<\/strong><\/h3>\n<p>O tipo mais barato de PMMA \u00e9 o acr\u00edlico de uso geral. \u00c9 utilizado para mercadorias e n\u00e3o para aplica\u00e7\u00f5es de engenharia. O acr\u00edlico para sinal\u00e9tica \u00e9 10 vezes mais forte do que o acr\u00edlico de uso geral.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1033 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runvpFPwdTSMQU_Injection_molding_of_vario_8785b7ff-dbb4-470e-a8f7-c3e0934ab2a2_3.jpg\" alt=\"\" class=\"wp-image-40980\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runvpFPwdTSMQU_Injection_molding_of_vario_8785b7ff-dbb4-470e-a8f7-c3e0934ab2a2_3.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runvpFPwdTSMQU_Injection_molding_of_vario_8785b7ff-dbb4-470e-a8f7-c3e0934ab2a2_3-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>\u00c9 \u00f3timo para sinaliza\u00e7\u00e3o exterior porque deixa passar a luz. O acr\u00edlico de qualidade mar\u00edtima \u00e9 resistente aos danos causados pelo facto de estar constantemente na \u00e1gua. Os construtores de barcos utilizam-no muito.<\/p>\n<h2 class=\"wp-block-heading\"><strong>Acrilonitrilo Butadieno Estireno (ABS)<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"><strong>Defini\u00e7\u00e3o de ABS<\/strong><\/h3>\n<p>O ABS \u00e9 um termopl\u00e1stico que os engenheiros adoram porque \u00e9 f\u00e1cil de moldar e tem um ponto de fus\u00e3o baixo. \u00c9 um pol\u00edmero opaco que pode ser colorido e tem diferentes texturas e acabamentos de superf\u00edcie. O ABS \u00e9 conhecido por ser forte e resistente ao impacto.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1034 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"364\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/ABS-1.jpg\" alt=\"\" class=\"wp-image-40427\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/ABS-1.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/ABS-1-300x182.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Vantagens do ABS<\/strong><\/h3>\n<p>O ABS tem muitas coisas boas a seu favor. \u00c9 resistente, dur\u00e1vel e forte, o que o torna \u00fatil em muitos sectores diferentes. Tem uma elevada resist\u00eancia \u00e0 tra\u00e7\u00e3o e \u00e9 capaz de aguentar um golpe.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1035 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.rundOI1FsKl6A0_Injection_molding_of_vario_9bca3f9c-0ec7-49e1-9ade-80fb70c64685_2-2.jpg\" alt=\"\" class=\"wp-image-40984\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.rundOI1FsKl6A0_Injection_molding_of_vario_9bca3f9c-0ec7-49e1-9ade-80fb70c64685_2-2.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.rundOI1FsKl6A0_Injection_molding_of_vario_9bca3f9c-0ec7-49e1-9ade-80fb70c64685_2-2-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>Outro fator que torna o ABS <a href=\"https:\/\/zetarmold.com\/pt\/\" data-type=\"link\" data-id=\"https:\/\/zetarmold.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">moldagem por inje\u00e7\u00e3o<\/a> O que torna o ABS muito popular \u00e9 a sua ductilidade, que lhe permite ser facilmente moldado em diferentes formas. A capacidade do ABS de aderir a outros pl\u00e1sticos torna-o bom para revestir metais e outros materiais. O ABS \u00e9 resistente, relativamente barato e tem boa resist\u00eancia ao calor, \u00f3leos .<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1036 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runGFCo_eRXNXg_Injection_molding_of_compu_6386646c-bd2f-4d71-b82f-965ba4c3e033_1-1.jpg\" alt=\"\" class=\"wp-image-40981\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runGFCo_eRXNXg_Injection_molding_of_compu_6386646c-bd2f-4d71-b82f-965ba4c3e033_1-1.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runGFCo_eRXNXg_Injection_molding_of_compu_6386646c-bd2f-4d71-b82f-965ba4c3e033_1-1-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>\u00e1cidos e \u00e1lcalis. Cont\u00e9m estireno, que confere \u00e0s pe\u00e7as moldadas por inje\u00e7\u00e3o um aspeto brilhante e agrad\u00e1vel, e cont\u00e9m butadieno, que as torna resistentes mesmo quando est\u00e3o frias.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Desvantagens do ABS<\/strong><\/h3>\n<p>O ABS n\u00e3o \u00e9 muito resistente \u00e0 luz solar ou \u00e0s intemp\u00e9ries, pelo que n\u00e3o \u00e9 uma boa escolha para aplica\u00e7\u00f5es no exterior. O ABS tamb\u00e9m produz muito fumo quando queimado, tem fraca resist\u00eancia a fric\u00e7\u00e3o elevada e n\u00e3o resiste a solventes como a \u00e1gua.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1037 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.rundOI1FsKl6A0_Injection_molding_of_vario_9bca3f9c-0ec7-49e1-9ade-80fb70c64685_3-2.jpg\" alt=\"\" class=\"wp-image-40982\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.rundOI1FsKl6A0_Injection_molding_of_vario_9bca3f9c-0ec7-49e1-9ade-80fb70c64685_3-2.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.rundOI1FsKl6A0_Injection_molding_of_vario_9bca3f9c-0ec7-49e1-9ade-80fb70c64685_3-2-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Aplica\u00e7\u00f5es ABS<\/strong><\/h3>\n<p>O pl\u00e1stico ABS \u00e9 utilizado para fabricar pe\u00e7as electr\u00f3nicas e teclas para teclados, revestimento de pl\u00e1stico para proteger capacetes, tomadas el\u00e9ctricas e pe\u00e7as de autom\u00f3veis como pain\u00e9is de instrumentos, calotas e partes da carro\u00e7aria. \u00c9 tamb\u00e9m utilizado em bens de consumo, equipamento desportivo e acess\u00f3rios industriais.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Classes de ABS<\/strong><\/h3>\n<p>O ABS tamb\u00e9m pode ser misturado com cargas de vidro para maior resist\u00eancia, ou com policarbonato para melhor resist\u00eancia ao impacto a baixa temperatura. Alguns fornecedores produzem pl\u00e1sticos ABS com e sem enchimento.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1038 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runHHBTUyp3BKk_Injection_molding_computer_8df6ba2f-f423-4c25-b988-114bb4da52fd_0.jpg\" alt=\"\" class=\"wp-image-40983\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runHHBTUyp3BKk_Injection_molding_computer_8df6ba2f-f423-4c25-b988-114bb4da52fd_0.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runHHBTUyp3BKk_Injection_molding_computer_8df6ba2f-f423-4c25-b988-114bb4da52fd_0-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h2 class=\"wp-block-heading\"><strong>Nylon Poliamida (PA)<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"><strong>Defini\u00e7\u00e3o de PA<\/strong><\/h3>\n<p>As poliamidas (PA) s\u00e3o um grande grupo de materiais que podem ser naturais ou sint\u00e9ticos. No entanto, o nylon, um tipo de poliimida, \u00e9 sempre sint\u00e9tico. A moldagem por inje\u00e7\u00e3o do nylon \u00e9 dif\u00edcil porque esta poliamida tende a encolher e a n\u00e3o encher.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1039 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"399\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/PA.jpg\" alt=\"\" class=\"wp-image-40169\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/PA.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/PA-300x200.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Vantagens da AP<\/strong><\/h3>\n<p>As vantagens do nylon PA incluem a dureza e a elevada resist\u00eancia ao calor. Tem tamb\u00e9m uma elevada resist\u00eancia ao desgaste, boa resist\u00eancia \u00e0 fadiga e \u00e9 silencioso. O nylon moldado por inje\u00e7\u00e3o \u00e9 bom para aplica\u00e7\u00f5es de alta fric\u00e7\u00e3o e desgaste porque tem um baixo coeficiente de fric\u00e7\u00e3o.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1040 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"377\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runonKvqMbIZNU_Small_Mechanical_Parts_GEN_f06f5397-69d5-4c67-825e-955c87376780_1-2.jpg\" alt=\"\" class=\"wp-image-40985\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runonKvqMbIZNU_Small_Mechanical_Parts_GEN_f06f5397-69d5-4c67-825e-955c87376780_1-2.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runonKvqMbIZNU_Small_Mechanical_Parts_GEN_f06f5397-69d5-4c67-825e-955c87376780_1-2-300x189.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Desvantagens da AP<\/strong><\/h3>\n<p>O nylon n\u00e3o tem retardador de chama e queima rapidamente. Mas \u00e9 poss\u00edvel obter nylon retardador de chama. O nylon tamb\u00e9m n\u00e3o gosta da luz solar, mas pode adicionar estabilizadores de UV para o tornar melhor. O nylon tamb\u00e9m n\u00e3o gosta de \u00e1cidos ou bases fortes.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Aplica\u00e7\u00f5es da AP<\/strong><\/h3>\n<p>O nylon \u00e9 utilizado em pe\u00e7as mec\u00e2nicas resistentes, como rolamentos, casquilhos, engrenagens e corredi\u00e7as. Tamb\u00e9m \u00e9 \u00f3timo para caixas e fechos de press\u00e3o, inser\u00e7\u00f5es roscadas, grampos el\u00e9ctricos, grampos e acess\u00f3rios. Outras aplica\u00e7\u00f5es v\u00e3o desde escovas de dentes e rodas a implantes m\u00e9dicos e conectores el\u00e9ctricos.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1041 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runVDlPs1NSQms_Injection_molding_of_vario_d1a2c19a-26b5-4998-94f5-f12aaa857858_2.jpg\" alt=\"\" class=\"wp-image-41005\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runVDlPs1NSQms_Injection_molding_of_vario_d1a2c19a-26b5-4998-94f5-f12aaa857858_2.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runVDlPs1NSQms_Injection_molding_of_vario_d1a2c19a-26b5-4998-94f5-f12aaa857858_2-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Notas de PA<\/strong><\/h3>\n<p>Existem quatro graus principais de nylon: nylon 66, 11, 12 e 46. Cada tipo tem propriedades mec\u00e2nicas ligeiramente diferentes.<\/p>\n<p>O nylon 66 tem um ponto de fus\u00e3o mais elevado e uma maior resist\u00eancia aos \u00e1cidos e pode ser utilizado em aplica\u00e7\u00f5es de processamento qu\u00edmico.&nbsp;<\/p>\n<p>O nylon 11 tem uma maior resist\u00eancia \u00e0 altera\u00e7\u00e3o dimensional porque tem uma maior resist\u00eancia \u00e0 humidade. \u00c9 utilizado em aplica\u00e7\u00f5es no exterior.<\/p>\n<p>O nylon 12 tem o ponto de fus\u00e3o mais baixo e \u00e9 bastante bom a n\u00e3o absorver \u00e1gua.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1042 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runUX2Pr0kxt4Y_plastic_injection_molding__2c35dd13-6c52-472a-a410-218b2ae33a5c_3.jpg\" alt=\"\" class=\"wp-image-40988\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runUX2Pr0kxt4Y_plastic_injection_molding__2c35dd13-6c52-472a-a410-218b2ae33a5c_3.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runUX2Pr0kxt4Y_plastic_injection_molding__2c35dd13-6c52-472a-a410-218b2ae33a5c_3-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>O nylon 46 pode suportar temperaturas mais elevadas do que os outros nylons. \u00c9 utilizado em motores e transmiss\u00f5es.<\/p>\n<p>\u00c9 poss\u00edvel adicionar vidro ao nylon para o tornar mais forte.<\/p>\n<h2 class=\"wp-block-heading\"><strong>Policarbonato (PC)<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"><strong>Defini\u00e7\u00e3o de PC<\/strong><\/h3>\n<p>Os pl\u00e1sticos PC s\u00e3o materiais fortes e resistentes que s\u00e3o naturalmente transparentes. S\u00e3o semelhantes ao PMMA, mas o PC mant\u00e9m as suas propriedades f\u00edsicas numa gama de temperaturas mais ampla. Quando tingido, o PC mant\u00e9m a sua cor ao longo do tempo e mant\u00e9m a sua resist\u00eancia.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1043 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"404\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Polycarbonate-PC.jpg\" alt=\"\" class=\"wp-image-40170\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Polycarbonate-PC.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Polycarbonate-PC-300x202.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Vantagens do PC<\/strong><\/h3>\n<p>O policarbonato \u00e9 uma das resinas pl\u00e1sticas mais resistentes que existem. Tem uma elevada resist\u00eancia ao impacto. \u00c9 tamb\u00e9m altamente resistente ao fogo e ao calor, o que o torna perfeito para locais onde o calor \u00e9 intenso.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1044 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.run4qc5FjBZrWI_The_image_shows_a_clear_ri_09fd03b7-9cfe-4655-9e68-d23fed2cb695_2.jpg\" alt=\"\" class=\"wp-image-40989\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.run4qc5FjBZrWI_The_image_shows_a_clear_ri_09fd03b7-9cfe-4655-9e68-d23fed2cb695_2.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.run4qc5FjBZrWI_The_image_shows_a_clear_ri_09fd03b7-9cfe-4655-9e68-d23fed2cb695_2-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>O policarbonato \u00e9 super-resistente e 250 vezes mais forte do que o vidro. Com o seu encolhimento previs\u00edvel e uniforme do molde, este material de moldagem por inje\u00e7\u00e3o proporciona-lhe um controlo dimensional preciso. O pl\u00e1stico PC tamb\u00e9m \u00e9 leve e tem excelentes propriedades \u00f3pticas para suportar a transmiss\u00e3o de luz.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Desvantagens do PC<\/strong><\/h3>\n<p>N\u00e3o utilize policarbonato moldado por inje\u00e7\u00e3o para preparar ou armazenar alimentos porque tem BPA. Tamb\u00e9m necessita de temperaturas de processamento mais elevadas, o que torna a moldagem mais dispendiosa. O policarbonato tamb\u00e9m n\u00e3o \u00e9 resistente a riscos.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1045 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runGXZ4xOOmo-k_plastic_injection_molding__b9c89543-9219-4928-9205-13cc1e200da8_0-1.jpg\" alt=\"\" class=\"wp-image-40990\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runGXZ4xOOmo-k_plastic_injection_molding__b9c89543-9219-4928-9205-13cc1e200da8_0-1.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runGXZ4xOOmo-k_plastic_injection_molding__b9c89543-9219-4928-9205-13cc1e200da8_0-1-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Aplica\u00e7\u00f5es para PC<\/strong><\/h3>\n<p>O policarbonato \u00e9 utilizado para protec\u00e7\u00f5es de m\u00e1quinas, janelas transparentes ou coloridas, difusores e tubos de luz para LEDs e tubos transparentes. Este material tamb\u00e9m pode ser utilizado para produzir moldes transparentes para pe\u00e7as fundidas de poliuretano e silicone.<\/p>\n<p>O policarbonato pode ser preenchido com vidro e composto com ABS para melhorar a resist\u00eancia ao impacto. Alguns tipos cont\u00eam uma percentagem relativamente pequena de fibras de a\u00e7o inoxid\u00e1vel.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1046 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.run31Ask0wYpQg_PC_Material_injection_mold_b07cfa35-12de-4dc4-a113-6a7b5f2bb54b_1.jpg\" alt=\"\" class=\"wp-image-40991\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.run31Ask0wYpQg_PC_Material_injection_mold_b07cfa35-12de-4dc4-a113-6a7b5f2bb54b_1.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.run31Ask0wYpQg_PC_Material_injection_mold_b07cfa35-12de-4dc4-a113-6a7b5f2bb54b_1-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h2 class=\"wp-block-heading\"><strong>Polietileno (PE)<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"><strong>Defini\u00e7\u00e3o de PE<\/strong><\/h3>\n<p>O polietileno \u00e9 o pl\u00e1stico mais utilizado no mundo. Existem tr\u00eas tipos principais:<\/p>\n<p>polietileno de alta densidade (HDPE, PEHD) .<\/p>\n<p>polietileno de baixa densidade (LDPE) .<\/p>\n<p>Politereftalato de etileno (PET, PETE) .<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1047 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"386\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/PE-3.jpg\" alt=\"\" class=\"wp-image-40767\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/PE-3.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/PE-3-300x193.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>O PE \u00e9 o \u00fanico pol\u00edmero comercial que pode ser selecionado com base na sua densidade, e esta medida \u00e9 importante porque controla outras propriedades do material. Tanto o HDPE como o LDPE t\u00eam propriedades \u00fateis, como a resist\u00eancia qu\u00edmica, mas diferem na sua dureza, flexibilidade, ponto de fus\u00e3o e clareza \u00f3tica. O pl\u00e1stico PET n\u00e3o \u00e9 definido pela densidade.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Vantagens do PE<\/strong><\/h3>\n<p>O PEAD, o PEBD e o PET s\u00e3o todos pl\u00e1sticos baratos e resistentes \u00e0 humidade e aos produtos qu\u00edmicos. O LDPE \u00e9 mais macio e mais flex\u00edvel do que o HDPE, que \u00e9 um material opaco. Tal como o LDPE, o PET pode ser t\u00e3o transparente como o vidro. Os engenheiros e designers gostam destes materiais porque oferecem uma variedade de op\u00e7\u00f5es em termos de clareza \u00f3tica e outras propriedades.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1048 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"389\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/\u513f\u7ae5\u73a9\u5177.jpg\" alt=\"\" class=\"wp-image-40617\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/\u513f\u7ae5\u73a9\u5177.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/\u513f\u7ae5\u73a9\u5177-300x195.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Desvantagens do PE<\/strong><\/h3>\n<p>Os pl\u00e1sticos PE s\u00e3o limitados por uma fraca resist\u00eancia aos raios UV e n\u00e3o suportam temperaturas de servi\u00e7o elevadas. As pe\u00e7as de PEAD com espessuras inferiores a 0,020 polegadas s\u00e3o dif\u00edceis de moldar. \u00c9 dif\u00edcil manter toler\u00e2ncias apertadas com PEBD moldado por inje\u00e7\u00e3o. O PET absorve muita \u00e1gua e necessita de secagem da resina, o que aumenta os custos de produ\u00e7\u00e3o.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Aplica\u00e7\u00f5es PE<\/strong><\/h3>\n<p>Os pl\u00e1sticos PE s\u00e3o mais frequentemente utilizados em biber\u00f5es (HDPE), pel\u00edculas pl\u00e1sticas (LDPE) e garrafas de \u00e1gua (PET). No entanto, estes produtos n\u00e3o s\u00e3o moldados por inje\u00e7\u00e3o. S\u00e3o fabricados utilizando um tipo diferente de moldagem, chamado moldagem por sopro. Exemplos de PE moldado por inje\u00e7\u00e3o incluem brinquedos para crian\u00e7as, caixas de ferramentas, isolamento de fios e cabos e componentes de dispositivos m\u00e9dicos.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1049 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"445\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/07\/\u533b\u7597\u8bbe\u590734-1.jpg\" alt=\"\" class=\"wp-image-40124\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/07\/\u533b\u7597\u8bbe\u590734-1.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/07\/\u533b\u7597\u8bbe\u590734-1-300x223.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Graus de educa\u00e7\u00e3o f\u00edsica<\/strong><\/h3>\n<p>Os pl\u00e1sticos PE s\u00e3o apresentados em graus numerados, sendo que os n\u00fameros mais elevados indicam geralmente uma maior densidade. Por exemplo, o HDPE 500 tem uma densidade mais elevada do que o HDPE 300. Ambas as classes t\u00eam densidades mais elevadas do que o LDPE, que tamb\u00e9m utiliza um sistema de numera\u00e7\u00e3o de classes.<\/p>\n<h2 class=\"wp-block-heading\"><strong>Polioximetileno (POM)<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"><strong>Defini\u00e7\u00e3o de POM<\/strong><\/h3>\n<p>O POM, tamb\u00e9m conhecido como acetal, \u00e9 um pl\u00e1stico de engenharia. Pode ser moldado por inje\u00e7\u00e3o em pe\u00e7as que necessitem de baixa fric\u00e7\u00e3o, elevada rigidez e excelente estabilidade dimensional. Os pl\u00e1sticos POM s\u00e3o naturalmente opacos e brancos porque t\u00eam uma estrutura altamente cristalina.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1050 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"352\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Polyoxymethylene-POM.jpg\" alt=\"\" class=\"wp-image-40176\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Polyoxymethylene-POM.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Polyoxymethylene-POM-300x176.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Vantagens do POM<\/strong><\/h3>\n<p>O POM, tamb\u00e9m conhecido como acetal, \u00e9 um tipo de pl\u00e1stico fabricado por <a href=\"https:\/\/zetarmold.com\/pt\/\" data-type=\"link\" data-id=\"https:\/\/zetarmold.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">moldagem por inje\u00e7\u00e3o<\/a>. Tem muitas qualidades fant\u00e1sticas, como ser muito r\u00edgido, n\u00e3o derreter quando est\u00e1 quente e ser escorregadio. N\u00e3o absorve \u00e1gua e \u00e9 bom para n\u00e3o ser afetado pela resist\u00eancia qu\u00edmica. <\/p>\n<p>Existem dois tipos principais de POM para escolher: homopol\u00edmero e copol\u00edmero. Isto significa que pode obter acetal com diferentes elementos misturados para que possa fazer coisas diferentes.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1051 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"377\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runonKvqMbIZNU_Small_Mechanical_Parts_GEN_f06f5397-69d5-4c67-825e-955c87376780_0-1.jpg\" alt=\"\" class=\"wp-image-40992\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runonKvqMbIZNU_Small_Mechanical_Parts_GEN_f06f5397-69d5-4c67-825e-955c87376780_0-1.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runonKvqMbIZNU_Small_Mechanical_Parts_GEN_f06f5397-69d5-4c67-825e-955c87376780_0-1-300x189.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Desvantagens do POM<\/strong><\/h3>\n<p>O POM \u00e9 fraco e expande-se muito quando est\u00e1 quente. Encolhe muito quando arrefece, e n\u00e3o gosta do sol. Os pl\u00e1sticos POM que s\u00e3o feitos de apenas um tipo de material s\u00e3o mais duros e mais fortes. Mas todos os pl\u00e1sticos POM (os que s\u00e3o feitos de apenas um tipo de material e os que s\u00e3o feitos de mais de um tipo de material) n\u00e3o podem passar em testes de inc\u00eandio como o UL 94.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Aplica\u00e7\u00f5es do POM<\/strong><\/h3>\n<p>Devido ao seu baixo coeficiente de atrito, o POM moldado por inje\u00e7\u00e3o \u00e9 bom para rolamentos, engrenagens, correias transportadoras e polias. Outras utiliza\u00e7\u00f5es incluem fixadores, arma\u00e7\u00f5es de \u00f3culos, pe\u00e7as para facas e armas, sistemas de fecho e pe\u00e7as de engenharia de alto desempenho.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1052 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runXhrGCrUNCJ0_Detailed_Elements_in_the_I_28430b04-952b-4897-b42c-e861b9b597f8_2.jpg\" alt=\"\" class=\"wp-image-40993\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runXhrGCrUNCJ0_Detailed_Elements_in_the_I_28430b04-952b-4897-b42c-e861b9b597f8_2.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runXhrGCrUNCJ0_Detailed_Elements_in_the_I_28430b04-952b-4897-b42c-e861b9b597f8_2-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Classes de POM<\/strong><\/h3>\n<p>O POM est\u00e1 dispon\u00edvel em graus refor\u00e7ados com fibras de vidro ou minerais para o tornar mais forte e mais r\u00edgido. Os compostos refor\u00e7ados com estes dois materiais proporcionam-lhe uma boa combina\u00e7\u00e3o de propriedades mec\u00e2nicas.<\/p>\n<h2 class=\"wp-block-heading\"><strong>Polipropileno (PP)<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"><strong>Defini\u00e7\u00e3o de PP<\/strong><\/h3>\n<p>O polipropileno (PP) \u00e9 semelhante ao polietileno (PE) em muitos aspectos, mas \u00e9 mais r\u00edgido e mais resistente ao calor. \u00c9 o segundo pl\u00e1stico mais utilizado no mundo. A densidade do polipropileno varia consoante os materiais de enchimento, mas o PP puro \u00e9 o pl\u00e1stico comercial de densidade mais baixa.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1053 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"351\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/pp-1.jpg\" alt=\"\" class=\"wp-image-40800\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/pp-1.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/pp-1-300x176.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Vantagens do PP<\/strong><\/h3>\n<p>O pl\u00e1stico de polipropileno \u00e9 \u00f3timo para resistir a produtos qu\u00edmicos e manter a sua forma mesmo quando \u00e9 torcido ou dobrado. Tem tamb\u00e9m um elevado ponto de fus\u00e3o e n\u00e3o se desfaz quando \u00e9 molhado. Pode reciclar o polipropileno moldado por inje\u00e7\u00e3o (\u00e9 assim que algumas pessoas chamam a este pl\u00e1stico) at\u00e9 quatro vezes. Al\u00e9m disso, pode misturar PP reciclado com outros materiais pl\u00e1sticos.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Desvantagens do PP<\/strong><\/h3>\n<p>O PP \u00e9 um pl\u00e1stico que se decomp\u00f5e \u00e0 luz do sol e queima facilmente. A temperaturas superiores a 100\u00b0 C (212\u00b0 F), transforma-se em qu\u00edmicos que o podem magoar, como o benzeno e o tolueno. \u00c9 dif\u00edcil colorir o PP porque \u00e9 dif\u00edcil de colar, mas \u00e9 poss\u00edvel adicionar-lhe cor.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1054 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.run5Used6H61-A_Injection_molded_barrels_o_e6e2de41-ce97-4dbf-bd4e-0c7466e9d18f_2.jpg\" alt=\"\" class=\"wp-image-40994\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.run5Used6H61-A_Injection_molded_barrels_o_e6e2de41-ce97-4dbf-bd4e-0c7466e9d18f_2.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.run5Used6H61-A_Injection_molded_barrels_o_e6e2de41-ce97-4dbf-bd4e-0c7466e9d18f_2-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Aplica\u00e7\u00f5es PP<\/strong><\/h3>\n<p>O polipropileno moldado por inje\u00e7\u00e3o tem muitas utiliza\u00e7\u00f5es no mundo do consumo, comercial e industrial. Alguns exemplos s\u00e3o os brinquedos para crian\u00e7as, recipientes para armazenamento, equipamento desportivo, embalagens, electrodom\u00e9sticos e corpos de ferramentas el\u00e9ctricas.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Graus de PP<\/strong><\/h3>\n<p>\u00c9 poss\u00edvel colocar fibras de vidro no PP para o tornar mais forte, mais r\u00edgido e mais est\u00e1vel. Existem diferentes tipos de PP com fibras de vidro. Um tipo chama-se polipropileno de alta cristalinidade (HcPP). \u00c9 mais r\u00edgido do que o PP normal.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1055 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"452\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.rungIvheBqLGlU_plastic_injection_molding__8ab41f06-e40f-4fd1-ae29-1bf4c7863d15_3.jpg\" alt=\"\" class=\"wp-image-40995\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.rungIvheBqLGlU_plastic_injection_molding__8ab41f06-e40f-4fd1-ae29-1bf4c7863d15_3.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.rungIvheBqLGlU_plastic_injection_molding__8ab41f06-e40f-4fd1-ae29-1bf4c7863d15_3-300x226.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h2 class=\"wp-block-heading\"><strong>Poliestireno (PS)<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"><strong>Defini\u00e7\u00e3o de PS<\/strong><\/h3>\n<p>O poliestireno (PS) \u00e9 um pl\u00e1stico de base que se apresenta em dois tipos b\u00e1sicos para moldagem por inje\u00e7\u00e3o:<\/p>\n<p>Poliestireno de uso geral (GPPS) .<\/p>\n<p>Poliestireno de alto impacto (HIPS) .<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1056 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"413\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/\u805a\u82ef\u4e59\u70ef\uff08PS\uff09.jpg\" alt=\"\" class=\"wp-image-40181\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/\u805a\u82ef\u4e59\u70ef\uff08PS\uff09.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/\u805a\u82ef\u4e59\u70ef\uff08PS\uff09-300x207.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>O GPPS \u00e9 mais fr\u00e1gil e tem menor estabilidade dimensional do que o HIPS, que \u00e9 composto por borracha de butadieno para melhorar as suas propriedades materiais. O GPPS tamb\u00e9m tem uma transpar\u00eancia semelhante \u00e0 do vidro, enquanto o HIPS \u00e9 opaco. Ambos os tipos de poliestireno s\u00e3o adequados para moldagem por inje\u00e7\u00e3o porque t\u00eam uma retra\u00e7\u00e3o previs\u00edvel e uniforme.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Vantagens do PS<\/strong><\/h3>\n<p>Os pl\u00e1sticos PS s\u00e3o baratos, leves e n\u00e3o se molham nem desenvolvem germes. Tamb\u00e9m n\u00e3o se importam de ser atingidos por raios gama, pelo que podem ser utilizados para esterilizar material m\u00e9dico. O poliestireno moldado por inje\u00e7\u00e3o tamb\u00e9m n\u00e3o se importa de ser salpicado com \u00e1cidos ou bases fracos.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1057 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runk5Wo3vf8AS0_Injection_molding_of_vario_5b7b679b-dce8-44a8-8005-6c359163d791_0-1.jpg\" alt=\"\" class=\"wp-image-40996\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runk5Wo3vf8AS0_Injection_molding_of_vario_5b7b679b-dce8-44a8-8005-6c359163d791_0-1.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runk5Wo3vf8AS0_Injection_molding_of_vario_5b7b679b-dce8-44a8-8005-6c359163d791_0-1-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Desvantagens do PS<\/strong><\/h3>\n<p>O poliestireno \u00e9 inflam\u00e1vel, pode ser degradado pela luz UV e pode ser atacado por solventes de hidrocarbonetos como o benzeno e o querosene. \u00c9 fr\u00e1gil, pelo que o GPPS pode rachar facilmente. O poliestireno moldado por inje\u00e7\u00e3o pode ser reciclado, mas n\u00e3o pode ser biodegradado.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Aplica\u00e7\u00f5es de PS<\/strong><\/h3>\n<p>O poliestireno \u00e9 utilizado em aplica\u00e7\u00f5es m\u00e9dicas, \u00f3pticas e el\u00e9ctricas e electr\u00f3nicas. O HIPS \u00e9 frequentemente utilizado em electrodom\u00e9sticos e equipamentos porque \u00e9 mais resistente. O GPPS moldado por inje\u00e7\u00e3o \u00e9 utilizado em brinquedos de pl\u00e1stico, caixas, contentores e paletes.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1058 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"488\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/07\/\u533b\u7597\u8bbe\u590722-7.jpg\" alt=\"\" class=\"wp-image-40110\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/07\/\u533b\u7597\u8bbe\u590722-7.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/07\/\u533b\u7597\u8bbe\u590722-7-300x244.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Notas de PS<\/strong><\/h3>\n<p>\u00c9 poss\u00edvel encher o poliestireno com vidro para o tornar mais forte ou mistur\u00e1-lo com acr\u00edlico para o tornar mais claro e mais resistente a produtos qu\u00edmicos e \u00e0 luz UV.<\/p>\n<h2 class=\"wp-block-heading\"><strong>Elast\u00f3mero termopl\u00e1stico (TPE)<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"><strong>Defini\u00e7\u00e3o de TPE<\/strong><\/h3>\n<p>O elast\u00f3mero termopl\u00e1stico (TPE) ou borracha termopl\u00e1stica (TPR) \u00e9 uma mistura de borracha e materiais pl\u00e1sticos. O TPE tem as propriedades e o desempenho da borracha, mas processa-se como o pl\u00e1stico. <\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1059 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"316\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Thermoplastic-Elastomer-TPE.jpg\" alt=\"\" class=\"wp-image-40180\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Thermoplastic-Elastomer-TPE.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Thermoplastic-Elastomer-TPE-300x158.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>A elasticidade do TPR \u00e9 parte do que o torna atrativo para designers e engenheiros. O TPE tamb\u00e9m \u00e9 recicl\u00e1vel e pode ser reciclado seis vezes. Al\u00e9m disso, outros materiais reciclados podem ser misturados para produzir TPE.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Vantagens do TPE<\/strong><\/h3>\n<p>Os TPE podem ser esticados at\u00e9 alongamentos moderados e, quando a tens\u00e3o \u00e9 removida, voltam praticamente \u00e0 sua forma original. O TPE tamb\u00e9m tem ciclos de moldagem mais curtos, suporta op\u00e7\u00f5es de sobremoldagem e \u00e9 mais f\u00e1cil e menos dispendioso de moldar do que a borracha de silicone l\u00edquido (LSR).<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1060 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/07\/\u533b\u7597\u8bbe\u59071-26.jpg\" alt=\"\" class=\"wp-image-40130\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/07\/\u533b\u7597\u8bbe\u59071-26.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/07\/\u533b\u7597\u8bbe\u59071-26-300x229.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Desvantagens do TPE<\/strong><\/h3>\n<p>O TPE \u00e9 propenso a deforma\u00e7\u00e3o sob tens\u00e3o sustentada, que \u00e9 quando um material s\u00f3lido se deforma permanentemente. Tamb\u00e9m perde as suas propriedades de borracha a temperaturas mais elevadas e \u00e9 mais caro do que outros materiais de moldagem por inje\u00e7\u00e3o.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Aplica\u00e7\u00f5es TPE<\/strong><\/h3>\n<p>Os TPEs que s\u00e3o moldados por inje\u00e7\u00e3o s\u00e3o utilizados em cal\u00e7ado, dispositivos m\u00e9dicos, pe\u00e7as para autom\u00f3veis e produtos para animais de estima\u00e7\u00e3o. As aplica\u00e7\u00f5es autom\u00f3veis incluem vedantes contra intemp\u00e9ries e coberturas contra poeiras \u00e0 prova de choque. As aplica\u00e7\u00f5es m\u00e9dicas incluem tubos de respira\u00e7\u00e3o, v\u00e1lvulas, cateteres e m\u00e1scaras de ventila\u00e7\u00e3o.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1061 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"417\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Dingtalk_20240703153117.jpg\" alt=\"\" class=\"wp-image-40530\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Dingtalk_20240703153117.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Dingtalk_20240703153117-300x209.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h2 class=\"wp-block-heading\"><strong>Poliuretano termopl\u00e1stico (TPU)<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"><strong>Defini\u00e7\u00e3o de TPU<\/strong><\/h3>\n<p>O poliuretano termopl\u00e1stico (TPU) \u00e9 um elast\u00f3mero termopl\u00e1stico (TPE). Tal como outros TPE, o TPU tem uma elasticidade semelhante \u00e0 da borracha, mas o TPU moldado por inje\u00e7\u00e3o \u00e9 mais duro e pode ser utilizado como substituto da borracha dura. O TPU \u00e9 frequentemente escolhido em vez do TPE porque o TPU \u00e9 mais adequado para temperaturas extremas e resist\u00eancia qu\u00edmica. Por outro lado, o TPE \u00e9 mais macio e mais flex\u00edvel.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1062 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"354\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Thermoplastic-Polyurethane-TPU.jpg\" alt=\"\" class=\"wp-image-40177\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Thermoplastic-Polyurethane-TPU.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/Thermoplastic-Polyurethane-TPU-300x177.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Vantagens do TPU<\/strong><\/h3>\n<p>O TPU tem melhor resist\u00eancia \u00e0 corros\u00e3o do que outros TPEs. Tamb\u00e9m \u00e9 resistente \u00e0 abras\u00e3o, produtos qu\u00edmicos, gordura, \u00f3leo e temperaturas elevadas. O TPU moldado por inje\u00e7\u00e3o tamb\u00e9m tem uma boa capacidade de suporte de carga e \u00e9 adequado para ambientes onde o material \u00e9 exposto ao ozono.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Desvantagens do TPU<\/strong><\/h3>\n<p>O TPU pode ser demasiado duro ou n\u00e3o ser suficientemente flex\u00edvel para algumas pe\u00e7as moldadas por inje\u00e7\u00e3o. Os poliuretanos termopl\u00e1sticos tamb\u00e9m tendem a ser mais caros e precisam de ser secos antes do processamento. Como alguns tipos t\u00eam um prazo de validade curto, os moldadores por inje\u00e7\u00e3o podem ter de os deitar fora antes de os poderem utilizar.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1063 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runmRrB60uTAEY_Injection_molding_computer_d4d5f2fe-c510-472d-890c-77e135269b36_3.jpg\" alt=\"\" class=\"wp-image-41001\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runmRrB60uTAEY_Injection_molding_computer_d4d5f2fe-c510-472d-890c-77e135269b36_3.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runmRrB60uTAEY_Injection_molding_computer_d4d5f2fe-c510-472d-890c-77e135269b36_3-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"><strong>Aplica\u00e7\u00f5es TPU<\/strong><\/h3>\n<p>O TPU \u00e9 utilizado em cal\u00e7ado, juntas, rod\u00edzios e artigos desportivos. Tamb\u00e9m \u00e9 utilizado em caixas ou inv\u00f3lucros para dispositivos electr\u00f3nicos e m\u00e9dicos. Em aplica\u00e7\u00f5es m\u00e9dicas, o TPU \u00e9 por vezes utilizado em vez do PVC, um pl\u00e1stico que pode causar irrita\u00e7\u00f5es na pele.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Classes de TPU<\/strong><\/h3>\n<p>Existem graus comerciais, m\u00e9dicos e industriais de poliuretanos termopl\u00e1sticos. Os materiais TPU dividem-se principalmente em tr\u00eas categorias: poli\u00e9ster, poli\u00e9ter e policaprolactona.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1064 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runh2w0nm-V07s_Injection_molding_of_elect_5d4b99e7-e7a3-480e-8056-93b9dc5d2b4c_1-1-3.jpg\" alt=\"\" class=\"wp-image-40999\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runh2w0nm-V07s_Injection_molding_of_elect_5d4b99e7-e7a3-480e-8056-93b9dc5d2b4c_1-1-3.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runh2w0nm-V07s_Injection_molding_of_elect_5d4b99e7-e7a3-480e-8056-93b9dc5d2b4c_1-1-3-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h2 class=\"wp-block-heading\"><strong>Resumo<\/strong><\/h2>\n<p>Em suma, existem diferentes <a href=\"https:\/\/zetarmold.com\/pt\/\" data-type=\"link\" data-id=\"https:\/\/zetarmold.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">moldagem por inje\u00e7\u00e3o de pl\u00e1stico<\/a> materiais para moldagem por inje\u00e7\u00e3o, como o acr\u00edlico, o ABS, o nylon, etc. Cada material tem as suas pr\u00f3prias carater\u00edsticas e cen\u00e1rios de aplica\u00e7\u00e3o.<\/p>\n<p>Conhecer as vantagens e desvantagens de cada material pode ajud\u00e1-lo a escolher o material mais adequado para o seu projeto e produ\u00e7\u00e3o, de modo a obter o melhor desempenho e rentabilidade.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1065 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"336\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runrpXqUbgNogE_Injection_molding_of_vario_3e937500-1b04-4b4d-a04f-c6cb49352eb5_1-2.jpg\" alt=\"\" class=\"wp-image-41002\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runrpXqUbgNogE_Injection_molding_of_vario_3e937500-1b04-4b4d-a04f-c6cb49352eb5_1-2.jpg 600w, https:\/\/zetarmold.com\/wp-content\/uploads\/2024\/08\/zetar6756_httpss.mj_.runrpXqUbgNogE_Injection_molding_of_vario_3e937500-1b04-4b4d-a04f-c6cb49352eb5_1-2-300x168.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>A Ztar Mold possui tecnologia de moldagem por inje\u00e7\u00e3o de primeira classe. Se tiver algum projeto de moldagem por inje\u00e7\u00e3o, pode sempre contactar-nos.<\/p>\n<div style=\"background:#f0f4f8;padding:20px;border-radius:8px;margin-top:30px;\">\n<p style=\"margin:0 0 10px;font-size:18px;\"><strong>Need a Quote for Your Injection Molding Project?<\/strong><\/p>\n<p style=\"margin:0 0 10px;\">Get competitive pricing, DFM feedback, and production timeline from ZetarMold&#8217;s engineering team.<\/p>\n<p style=\"margin:0;\"><a href=\"https:\/\/zetarmold.com\/pt\/contactar-nos\/\" style=\"background:#2563eb;color:white;padding:12px 24px;border-radius:6px;text-decoration:none;font-weight:bold;\">Request a Free Quote \u2192<\/a> See our <a href=\"https:\/\/zetarmold.com\/pt\/injection-molding-complete-guide\/\">Injection Molding Complete Guide<\/a> for a comprehensive overview.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Introdu\u00e7\u00e3o: o processo de moldagem por inje\u00e7\u00e3o \u00e9 famoso pela sua vasta gama de aplica\u00e7\u00f5es. Uma das raz\u00f5es para o seu sucesso \u00e9 a grande variedade de materiais de moldagem por inje\u00e7\u00e3o de pl\u00e1stico que podem ser utilizados na moldagem por inje\u00e7\u00e3o. Neste artigo, vamos falar sobre alguns dos pl\u00e1sticos mais comuns utilizados na moldagem por inje\u00e7\u00e3o. Vamos abordar [\u2026]<\/p>","protected":false},"author":1,"featured_media":40736,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"10 Popular Injection Moulding Materials and Their | ZetarMold","_seopress_titles_desc":"Explore the properties and applications of injection moulding materials. ZetarMold helps you select the right plastic resin for your injection molding","_seopress_robots_index":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[45],"tags":[135,199],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/zetarmold.com\/pt\/wp-json\/wp\/v2\/posts\/40974"}],"collection":[{"href":"https:\/\/zetarmold.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zetarmold.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/pt\/wp-json\/wp\/v2\/comments?post=40974"}],"version-history":[{"count":0,"href":"https:\/\/zetarmold.com\/pt\/wp-json\/wp\/v2\/posts\/40974\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/pt\/wp-json\/wp\/v2\/media\/40736"}],"wp:attachment":[{"href":"https:\/\/zetarmold.com\/pt\/wp-json\/wp\/v2\/media?parent=40974"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zetarmold.com\/pt\/wp-json\/wp\/v2\/categories?post=40974"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zetarmold.com\/pt\/wp-json\/wp\/v2\/tags?post=40974"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}