半结晶中高分子量 Kynar 741
KYNAR® 740 is a semi-crystalline medium-high 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 grades suitable for a variety of processing requirements and end-use applications. KYNAR® 740 is appropriate for use in most extrusion applications and can be injection molded.
The powder form of this resin grade is available as KYNAR® 741 PVDF.
基本信息
黄卡编号
特性
形式
加工方法
物理性能
额定值
单位制
测试方法
比重
1.77 到 1.79
g/cm3
ASTM D792
熔流率(熔体流动速率)
6.0 到 25
g/10 min
ASTM D1238
硬度
额定值
单位制
测试方法
肖氏硬度 (邵氏 D, 23°C)
76 到 80
ASTM D2240
机械性能
额定值
单位制
测试方法
抗张强度
ASTM D638
屈服, 23°C
44.8 到 55.2
MPa
ASTM D638
断裂, 23°C
34.5 到 55.2
MPa
ASTM D638
伸长率 (断裂, 23°C)
20 到 100
%
ASTM D638
弯曲模量 (23°C)
1380 到 2310
MPa
ASTM D790
弯曲强度 (23°C)
58.6 到 75.8
MPa
ASTM D790
压缩强度 (23°C)
68.9 到 103
MPa
ASTM D695
热性能
额定值
单位制
测试方法
熔融峰值温度
165 到 172
°C
ASTM 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+14
ohms·cm
ASTM D257
充模分析
额定值
单位制
测试方法
熔体粘度 (232°C, 100 sec^-1)
1500 到 2300
Pa·s