{"id":2492,"date":"2024-10-24T11:57:43","date_gmt":"2024-10-24T02:57:43","guid":{"rendered":"https:\/\/www.scpc.jp\/?post_type=performance&p=2492"},"modified":"2024-12-06T12:00:55","modified_gmt":"2024-12-06T03:00:55","slug":"standard","status":"publish","type":"performance","link":"https:\/\/www.scpc.jp\/en\/performance\/standard\/","title":{"rendered":"Standard"},"content":{"rendered":"\n
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Polycarbonate resin is one of the “Big 5” general-purpose engineering plastics, along with polyamide, polyacetal, polyester, and modified polyphenylene ether, and is the only one<\/strong> among them that possesses transparency<\/strong>. While there are other transparent resins like acrylic and polystyrene, polycarbonate resin stands out due to its superior impact resistance, heat resistance<\/strong>, and flame retardancy<\/strong>. These unique properties make polycarbonate an essential resin material used across a wide range of industries and applications, such as household items, building materials, electrical products, optical devices, and automobiles.<\/p>\n\n\n\n

Polycarbonate resin is known for its excellent weather resistance<\/strong>, but to further prevent discoloration due to exposure, Sumika Polycarbonate offers the 302 and 303 series<\/strong>, which have enhanced weather resistance. Recently, under EU REACH regulations, the ultraviolet (UV) absorbers used in some materials were added to the SVHC (Substance of Very High Concern) candidate list<\/strong>. In response, Sumika Polycarbonate has introduced the E Series<\/strong>, which offers comparable performance to the traditional grades while being free of SVHC-listed substances, in addition to the long-established 302 and 303 series.<\/p>\n\n\n\n

Although polycarbonate resin is known for its excellent transparency, flame retardancy, and impact resistance, long-term exposure<\/strong> to high temperatures and high humidity can lead to hydrolysis, which results in a decrease in molecular weight. The 351 series<\/strong> has been developed to provide improved hydrolysis resistance<\/strong> while maintaining the same high performance as the 301 series<\/strong>.<\/p>\n\n\n\n

This makes the 351 series particularly suited for applications in environments with prolonged exposure to moisture and heat, where maintaining material strength and durability is critical.<\/p>\n<\/div><\/div>\n\n\n\n

Features of standard grade<\/h3>\n\n\n\n
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Characteristics of the Big 5 General-Purpose Engineering Plastics<\/strong><\/p>\n\n\n\n

<\/td>Transparency<\/td>Water
absorbency<\/td>		Flame
resistance<\/td>		Chemical
resistance<\/td>		Abrasion
resistance<\/td><\/tr>
PC<\/td>\u25ce<\/td>\u25cb<\/td>\u25ce<\/td>\u25b3<\/td>\u25b3<\/td><\/tr>
PA6<\/td>\u00d7<\/td>\u00d7<\/td>\u25cb<\/td>\u25cb<\/td>\u25cb<\/td><\/tr>
POM<\/td>\u00d7<\/td>\u25cb<\/td>\u00d7<\/td>\u25cb<\/td>\u25cb<\/td><\/tr>
PBT<\/td>\u00d7<\/td>\u25cb<\/td>\u00d7<\/td>\u25cb<\/td>\u25b3<\/td><\/tr>
Modified
PPE<\/td>		\u00d7<\/td>\u25ce<\/td>\u25cb<\/td>\u25cb<\/td>\u25b3<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Performance Comparison of Transparent Resins<\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n<\/div>\n\n\n\n
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Comparison of Various Properties<\/strong><\/p>\n\n\n

\u30b9\u30af\u30ed\u30fc\u30eb\u3067\u304d\u307e\u3059 <\/i><\/span><\/div>\n
Properties<\/td>Test Method<\/td>Unit<\/td>302-4<\/td>302E-4<\/td><\/tr>
Transmission\u30102mm\u3011<\/td>ISO13468<\/td>%<\/td>89<\/td>88<\/td><\/tr>
Haze\u30102mm\u3011<\/td>ISO14782<\/td>%<\/td>0.4<\/td>0.4<\/td><\/tr>
Tensile Stress(Yield)<\/td>ISO527-2<\/td>MPa<\/td>60<\/td>60<\/td><\/tr>
Tensile Strain(Break)<\/td>ISO527-2<\/td>%<\/td>110<\/td>110<\/td><\/tr>
Charpy Notched
Impact Strength<\/td>		ISO179<\/td>kJ\/m2<\/td>80<\/td>80<\/td><\/tr>
Deflection Temperature
Under Load\u30101.80MPa\u3011<\/td>		ISO75-2<\/td>\u2103<\/td>130<\/td>130<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Color Change After Weathering Tests<\/strong><\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n<\/div>\n\n\n\n
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Comparison of Various Properties<\/strong><\/strong><\/p>\n\n\n

\u30b9\u30af\u30ed\u30fc\u30eb\u3067\u304d\u307e\u3059 <\/i><\/span><\/div>\n
Properties<\/td>Test Method<\/td>Unit<\/td>301-10<\/td>351-10<\/td><\/tr>
Transmission\u30102mm\u3011<\/td>ISO13468<\/td>%<\/td>89<\/td>89<\/td><\/tr>
Haze\u30102mm\u3011<\/td>ISO14782<\/td>%<\/td>0.4<\/td>0.4<\/td><\/tr>
Tensile Stress(Yield)<\/td>ISO527-2<\/td>MPa<\/td>60<\/td>60<\/td><\/tr>
Tensile Strain(Break)<\/td>ISO527-2<\/td>%<\/td>110<\/td>110<\/td><\/tr>
Charpy Notched
Impact Strength<\/td>		ISO179<\/td>kJ\/m2<\/td>75<\/td>75<\/td><\/tr>
Deflection Temperature
Under Load\u30101.80MPa\u3011<\/td>		ISO75-2<\/td>\u2103<\/td>126<\/td>126<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n
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Molecular Weight Decrease in Hot Water Immersion (95\u00b0C)<\/strong><\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n<\/div>\n<\/div><\/div>\n\n\n\n

Usage<\/h3>\n\n\n\n
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Building<\/a><\/div>
Misc.<\/a><\/div>
Medical<\/a><\/div>
Electrical and Electronic<\/a><\/div>
Auto<\/a><\/div>
Optical<\/a><\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n","protected":false},"template":"","class_list":["post-2492","performance","type-performance","status-publish","hentry","en-US"],"_links":{"self":[{"href":"https:\/\/www.scpc.jp\/wp-json\/wp\/v2\/performance\/2492"}],"collection":[{"href":"https:\/\/www.scpc.jp\/wp-json\/wp\/v2\/performance"}],"about":[{"href":"https:\/\/www.scpc.jp\/wp-json\/wp\/v2\/types\/performance"}],"wp:attachment":[{"href":"https:\/\/www.scpc.jp\/wp-json\/wp\/v2\/media?parent=2492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}