PVDF 720 阿科玛 Arkema Kynar 720Kynar? 720Polyvinylidene FluorideArkema产品说明：KYNAR? 720 is a semi-crystalline low molecular weight pelletized polymer of vinylidene fluoride. It is a versatile engineering plastic with an outstanding balance of physical and chemical properties which qualify it for high performance service in a wide range of applications. It is a thermoplastic fluoropolymer capable of being fabricated in standard processing equipment. The molecular weight and molecular weight distribution have been carefully tailored to supply a grade suitable for a variety of processing requirements and end-use applications.KYNAR? 720 is recommended for fine extrusion operations such as monofilament and thin, flat, and blown film. It is also suitable for injection molding applications where very thin cross-sections for intricate design require excellent melt flow characteristics. KYNAR? 720 is also suggested for coextrusion of composite constructions and as a base for filled or alloyed KYNAR? compounds.The powder form of this resin grade is available as KYNAR? 721 PVDF.物性信息：基本信息黄卡编号E54699-244848特性半结晶低分子量用途Blown Film薄壁部件薄膜形式粒子加工方法挤出注射成型多点数据Isothermal Stress vs. Strain (ISO 11403-1)Secant Modulus vs. Strain (ISO 11403-1)Specific Volume vs Temperature (ISO 11403-2)Viscosity vs. Shear Rate (ISO 11403-2)物理性能额定值单位制测试方法比重1.77 到 1.79g/cm?ASTM D792熔流率（熔体流动速率）5.0 到 27g/10 minASTM D1238硬度额定值单位制测试方法肖氏硬度 (邵氏 D, 23°C)76 到 80ASTM D2240机械性能额定值单位制测试方法抗张强度ASTM D638 屈服, 23°C44.8 到 55.2MPaASTM D638 断裂, 23°C34.5 到 55.2MPaASTM D638伸长率 (断裂, 23°C)20 到 ****ASTM D638弯曲模量 (23°C)1380 到 2310MPaASTM D790弯曲强度 (23°C)58.6 到 75.8MPaASTM D790压缩强度 (23°C)68.9 到 103MPaASTM D695热性能额定值单位制测试方法熔融峰值温度165 到 172°CASTM D3418电气性能额定值单位制测试方法体积电阻率 1(20°C)2.0E+14ohms·cmASTM D257充模分析额定值单位制测试方法熔体粘度 (232°C, 100 sec^-1)600 到 1200Pa·sASTM D3835
