产品详细介绍Surlyn? 8940乙烯甲基丙烯酸DuPont Packaging & Industrial Polymers产品说明:Surlyn? 8940 is a sodium ionomer thermoplastic resin. Itis available for use in conventional extrusion and injectione, to create various sheets or shapes.Surlyn? 8940 thermoplastic resin is an advancedethylene/methacrylic acid (E/MAA) copolymer, in which the MAA acidgroups have been partially neutralized with sodium ions. Surlyn? 8940 物性表基本信息特性共聚物机构评级FDA 21 CFR 177.1330(a)形式粒子物理性能额定值单位制测试方法比重0.950g/cm?ASTM D792, ISO 1183熔流率(熔体流动速率) (190°C/2.16 kg)2.8g/10 minASTM D1238, ISO 1133离子类型Sodium机械性能额定值单位制测试方法抗磨损性 - NBS Index370ASTM D1630热性能额定值单位制测试方法Freezing Point --59°CISO 3146 --59°CASTM D3418硬度额定值单位制测试方法肖氏硬度 (邵氏 D)65ASTM D2240, ISO 868机械性能额定值单位制测试方法抗张强度 (断裂, 23°C)33.0MPaASTM D638, ISO 527-2伸长率 (断裂, 23°C)470%ASTM D638, ISO 527-2弯曲模量ASTM D790 -20°C717MPaASTM D790 23°C350MPaASTM D790弯曲强度 (屈服)15.0MPaASTM D790弹性体额定值单位制测试方法撕裂强度 (23°C)1.48kN/mASTM D624冲击性能额定值单位制测试方法悬壁梁缺口冲击强度 (23°C)1000J/mASTM D256拉伸冲击强度ASTM D1822 -40°C757kJ/m?ASTM D1822 23°C1020kJ/m?ASTM D1822热性能额定值单位制测试方法脆化温度-106°CASTM D746维卡软化温度63.0°CASTM D1525, ISO 306熔融峰值温度94.0°CASTM D3418, ISO 3146光学性能额定值单位制测试方法雾度 (6350 ?m)5.0%ASTM D1003注射额定值单位制加工(熔体)温度185 到 285°C