描述
聚邻苯二甲酰胺PPA Gf20/Gf25/Gf30/Gf40塑料原材料
优异的机械性能、电绝缘性能、耐辐射性、耐高温性和耐磨性,并可通过微波
聚邻苯二甲酰胺PPA Gf20/Gf25/Gf30/Gf40塑料原料
产品详细信息
聚对苯二甲酸乙酰胺(PPA)Gf20/Gf25/Gf30/Gf40塑料原料
聚对苯二甲酸乙酰胺(PPA)是一种半芳香族工程热塑性塑料。主要构建块是对苯二甲酸或间苯二甲酸或其组合以及至少一种脂肪族二胺,例如己二胺。芳香酸部分包含聚合物链中至少55摩尔%的重复单元,即这些树脂仅部分芳香。1-3聚合物主链中的芳香部分增加熔点、硬度、热稳定性和耐化学性,并降低吸湿性。然而,改善后的房产是有代价的;邻苯二甲酰胺树脂比传统的脂肪族酰胺贵得多,而且由于熔点高,加工难度更大
是聚对苯二甲酸乙酰胺ppa gf20/gf25/gf30/gf40塑料原料的专业制造商之一,您可以从我们工厂以优惠的价格订购高品质的聚对苯二甲酸乙酰胺ppa gf20/gf25/gf30/gf40塑料原料
Polyphthalamide PPA Gf20/Gf25/Gf30/Gf40 Plastic Raw Material
Excellent mechanical properties, electrical insulation properties, radiation resistance, high temperature resistance and wear resistance, and through the microwave.
Polyphthalamide PPA Gf20/Gf25/Gf30/Gf40 Plastic Raw Material
Product Details
Polyphthalamide PPA Gf20/Gf25/Gf30/Gf40 Plastic Raw Material
Polyphthalamide (PPA) is a semi-aromatic engineering thermoplastic. The main building blocks are terephthalic acid or isophthalic acid or a combination thereof and at least one aliphatic diamine such as hexamethylene diamine. The aromatic acid portion comprises at least 55 molar percent of the repeat units in the polymer chain, i.e. these resins are only partially aromatic.1-3 The aromatic portion in the polymer backbone increases the melting point, rigidity, heat stability, and chemical resistance and lowers the moisture absorption. However, the enhanced properties come at a price; phthalamide resins are much more expensive than conventional aliphatic amides and are more difficult to process due to their high melting point.
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