低分子量PVDF 721薄壁部件资料 

Kynar® 721

聚偏二氟乙烯

Arkema

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.

附加功能

基本信息

 

特性

· 半结晶

· 低分子量

用途

· Blown Film

· 薄壁部件

· 薄膜

形式

· 粉状

加工方法

· 挤出

· 注射成型

Kynar® 721 物性表

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）	5.0 到 27	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)	600 到 1200	Pa·s	ASTM D3835

备注
1 .	65% R.H.

 

低分子量PVDF 721薄壁部件资料