{"id":51590,"date":"2026-01-14T10:26:49","date_gmt":"2026-01-14T02:26:49","guid":{"rendered":"https:\/\/zetarmold.com\/?p=51590"},"modified":"2026-04-09T08:07:28","modified_gmt":"2026-04-09T00:07:28","slug":"%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2%e7%94%a8%e7%86%b1%e5%8f%af%e5%a1%91%e6%80%a7%e3%83%97%e3%83%a9%e3%82%b9%e3%83%81%e3%83%83%e3%82%af","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/ja\/%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2%e7%94%a8%e7%86%b1%e5%8f%af%e5%a1%91%e6%80%a7%e3%83%97%e3%83%a9%e3%82%b9%e3%83%81%e3%83%83%e3%82%af\/","title":{"rendered":"2026\u5e741\u670814\u65e5"},"content":{"rendered":"

ABS\u306e\u52a0\u5de5\u6027\u3068PC\u306e\u5f37\u5ea6\u3092\u5fc5\u8981\u3068\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001<\/p>\n

\n \u8981\u70b9<\/strong>
\n \u2013 Material selection requires balancing mechanical performance (tensile strength, impact) with environmental constraints (temperature, chemical exposure).
\n \u2013 Engineering resins like Polycarbonate (PC) and Polyamide (PA) offer a middle ground between cost and high heat resistance.
\n \u2013 High-performance thermoplastics like PEEK provide metal-replacement capabilities but come with high processing costs.
\n \u2013 Medical applications require specific regulatory compliance, such as USP Class VI or ISO 10993 standards.\n<\/div>\n

\"Thermoplastic
Thermoplastic for Injection Molding<\/figcaption><\/figure>\n<\/p>\n

What are the Key Parameters for a Plastic Material Selection Guide?<\/h2>\n

A robust plastic material selection guide<\/a>1<\/a><\/sup> categorizes resins based on their polymer morphology (amorphous vs. semi-crystalline) and their performance tier. The selection matrix generally filters materials through four primary lenses: Thermal Performance, Mechanical Strength, Chemical Resistance, and Cost.<\/p>\n

The Polymer Pyramid Hierarchy<\/h3>\n\n\n\n\n\n\n\n
Tier<\/th>\nMaterial Family<\/th>\nExamples<\/th>\nCost Factor<\/th>\nKey Characteristic<\/th>\n<\/tr>\n<\/thead>\n
Commodity<\/strong><\/td>\nGeneral Purpose<\/td>\nPolypropylene (PP), Polyethylene (PE)<\/td>\n$<\/td>\nLow cost, easy processing, low load-bearing.<\/td>\n<\/tr>\n
Engineering<\/strong><\/td>\nStructural\/Technical<\/td>\nABS, Polycarbonate (PC), Polyamide (PA6, PA66)<\/td>\n$$ – $$$<\/td>\nGood balance of strength, temperature, and dimension.<\/td>\n<\/tr>\n
High-Performance<\/strong><\/td>\nExtreme Environment<\/td>\nPEEK, Polyetherimide (PEI), PPS<\/td>\n$$$$<\/td>\nHigh heat (>150\u00b0C), chemical inertness, metal replacement.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\"Thermoplastic
Thermoplastic for Injection Molding<\/figcaption><\/figure>\n<\/p>\n

How Do ABS and Polycarbonate Properties Compare?<\/h2>\n

When designing enclosures, consumer electronics, or automotive interiors, the debate often settles on ABS vs Polycarbonate properties<\/a>2<\/a><\/sup>.<\/p>\n

\u30a2\u30af\u30ea\u30ed\u30cb\u30c8\u30ea\u30eb\u30fb\u30d6\u30bf\u30b8\u30a8\u30f3\u30fb\u30b9\u30c1\u30ec\u30f3\uff08ABS\uff09<\/strong> is an amorphous polymer known for its toughness, ease of machining, and excellent surface finish.
\n\u30dd\u30ea\u30ab\u30fc\u30dc\u30cd\u30fc\u30c8\uff08PC\uff09<\/strong> is a transparent amorphous thermoplastic known for extreme impact resistance and higher heat deflection.<\/p>\n

Comparative Data: ABS vs. PC<\/h3>\n\n\n\n\n\n\n\n\n\n\n
\u30d7\u30ed\u30d1\u30c6\u30a3<\/th>\n\u30a2\u30af\u30ea\u30ed\u30cb\u30c8\u30ea\u30eb\u30fb\u30d6\u30bf\u30b8\u30a8\u30f3\u30fb\u30b9\u30c1\u30ec\u30f3\uff08ABS\uff09<\/th>\n\u30dd\u30ea\u30ab\u30fc\u30dc\u30cd\u30fc\u30c8\uff08PC\uff09<\/th>\n<\/tr>\n<\/thead>\n
\u5f15\u5f35\u5f37\u5ea6<\/strong><\/td>\n30 \u2013 50 MPa<\/td>\n55 \u2013 75 MPa<\/td>\n<\/tr>\n
Impact Strength (Izod)<\/strong><\/td>\n200 \u2013 400 J\/m<\/td>\n600 \u2013 900 J\/m<\/td>\n<\/tr>\n
Heat Deflection Temp (HDT @ 0.45 MPa)<\/strong><\/td>\n85\u00b0C \u2013 100\u00b0C<\/td>\n135\u00b0C \u2013 145\u00b0C<\/td>\n<\/tr>\n
\u900f\u660e\u6027<\/strong><\/td>\nOpaque<\/td>\nOptical Clarity<\/td>\n<\/tr>\n
\u53ce\u7e2e\u7387<\/strong><\/td>\n0.4% \u2013 0.7%<\/td>\n0.5% \u2013 0.7%<\/td>\n<\/tr>\n
Common Application<\/strong><\/td>\nKeyboards, Housings, LEGO bricks<\/td>\nSafety goggles, Medical devices, Automotive lenses<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u6ce8\uff1a<\/strong> For applications requiring the processability of ABS and the strength of PC, a ISO 10993:<\/strong> is often used.<\/p>\n

\n

<\/svg> Polycarbonate offers significantly higher impact resistance and optical clarity compared to ABS.<\/b>\u771f<\/span><\/p>\n

PC is virtually unbreakable and transparent, whereas ABS is opaque and, while tough, has lower impact values than PC.<\/p>\n<\/div>\n

\n

<\/svg> ABS is the best choice for high-heat applications above 120\u00b0C.<\/b>\u507d<\/span><\/p>\n

ABS typically softens around 90-100\u00b0C. For temperatures above 120\u00b0C, Polycarbonate or Nylon are required.<\/p>\n<\/div>\n

\"Thermoplastic
Thermoplastic for Injection Molding<\/figcaption><\/figure>\n<\/p>\n

What Are High-Performance Thermoplastics and When Should They Be Used?<\/h2>\n

High-performance thermoplastics<\/a>3<\/a><\/sup> are defined by their ability to maintain mechanical properties at elevated temperatures (continuous use >150\u00b0C) and resist harsh chemicals.<\/p>\n

Polyamide (PA\/Nylon) vs. Polyether Ether Ketone (PEEK)<\/h3>\n
    \n
  1. Polyamide 66 (PA66):<\/strong> A semi-crystalline engineering plastic. When reinforced with glass fibers (GF), PA66 rivals metals in structural rigidity. However, it is hygroscopic (absorbs moisture), which affects dimensional stability.<\/li>\n
  2. Polyether Ether Ketone (PEEK):<\/strong> The apex of the polymer pyramid. It offers exceptional chemical resistance, hydrolysis resistance (steam), and high-temperature performance.<\/li>\n<\/ol>\n

    Performance Data Matrix<\/h3>\n\n\n\n\n\n\n\n\n
    \u30d1\u30e9\u30e1\u30fc\u30bf<\/th>\nPolyamide 66 (30% GF)<\/th>\nPEEK (Unfilled)<\/th>\n<\/tr>\n<\/thead>\n
    \u878d\u70b9<\/strong><\/td>\n~260\u00b0C<\/td>\n~343\u00b0C<\/td>\n<\/tr>\n
    Continuous Use Temp<\/strong><\/td>\n120\u00b0C<\/td>\n250\u00b0C<\/td>\n<\/tr>\n
    \u8010\u85ac\u54c1\u6027<\/strong><\/td>\nGood (Oils\/Greases), Weak against Acids<\/td>\nExcellent (Resists almost all organic\/inorganic chemicals)<\/td>\n<\/tr>\n
    Cost Ratio (approx.)<\/strong><\/td>\n1.5x \u2013 2x vs Commodity<\/td>\n20x \u2013 50x vs Commodity<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    <\/svg> PEEK is capable of withstanding continuous operating temperatures up to 250\u00b0C.<\/b>\u771f<\/span><\/p>\n

    PEEK is a semi-crystalline high-performance thermoplastic designed for extreme thermal environments.<\/p>\n<\/div>\n

    \n

    <\/svg> High-performance thermoplastics like PEEK are easy to mold and require standard equipment.<\/b>\u507d<\/span><\/p>\n

    PEEK requires high mold temperatures (160\u00b0C+) and barrel temperatures (~400\u00b0C), often requiring specialized high-temp molding machines.<\/p>\n<\/div>\n

    \"Thermoplastic
    Thermoplastic for Injection Molding<\/figcaption><\/figure>\n<\/p>\n

    How to Interpret an Injection Molding Resin Chart?<\/h2>\n

    \u30a2\u30f3 \u5c04\u51fa\u6210\u5f62\u91d1\u578b<\/a>ing resin chart<\/a>4<\/a><\/sup> provides technical data points that dictate processability. To use these charts effectively, follow this stepwise selection process:<\/p>\n

      \n
    1. Identify Thermal Constraints:<\/strong> Look at the Heat Deflection Temperature (HDT). The material must withstand the application\u2019s maximum temperature without warping.<\/li>\n
    2. Determine Mechanical Load:<\/strong> Check Tensile Modulus (stiffness) and Yield Strength. If the part bears weight, prioritize glass-filled variants.<\/li>\n
    3. Assess Environmental Exposure:<\/strong> Consult chemical resistance charts. Amorphous resins (PC, ABS) are generally prone to stress cracking from solvents; Semi-crystalline resins (Nylon, PEEK, PP) offer better resistance.<\/li>\n
    4. Review Shrinkage Rates:<\/strong> High shrinkage materials (like PEEK or POM) require precise mold design considerations compared to low shrinkage materials (ABS, PC).<\/li>\n<\/ol>\n

      \"Thermoplastic
      Thermoplastic for Injection Molding<\/figcaption><\/figure>\n<\/p>\n

      What are the Considerations for Medical Grade Plastics?<\/h2>\n

      Selecting medical grade plastics<\/a>5<\/a><\/sup> introduces regulatory and sterilization variables beyond standard mechanical properties.<\/p>\n

      Key Regulatory Standards<\/h3>\n