Tefzel® 750

Ethylene Tetrafluoroethylene Copolymer
DuPont Fluoropolymers
产品说明：
DuPont™ Tefzel ® fluoropolymer resins offer mechanical strength and toughness along with resistance to heat and chemicals. In addition, they provide easy processing, high specific dielectric strength, and a low coefficient of friction. For these reasons, Tefzel ® resins are widely used to make compact wire and cable constructions that provide long, reliable service in demanding environments.

Tefzel ® 750 retains the traditional characteristics of Tefzel ® resins while providing some new property advantages, including increased flexibility and improved retention of properties after aging at elevated temperatures, higher limiting oxygen index, and long-term service life at higher temperatures than other Tefzel ® resins.

Underwriters Laboratories, Inc. (UL) has rated wire insulated with Tefzel ® 750 (10 mil for 600V, 6 mil for 300V) for service in appliances at a maximum continuous operating temperature of 200°C (392°F). This rating was determined under the guidelines of UL Subject 758 for appliance wiring material. Upper service temperatures for other applications should be determined under the guidelines for those applications. Temperature ratings may not be the same as the rating for appliance wire because the test procedures are different.
物性信息：

基本信息
黄卡编号	E54681-244670
特性	低摩擦系数 共聚物 可加工性，良好 良好的柔韧性 耐化学性良好 耐热性，高 韧性良好
用途	电线电缆应用 电子绝缘
形式	粒子
加工方法	挤出

物理性能	额定值	单位制	测试方法
比重	1.75 到 1.79	g/cm³	ASTM D792
熔流率（熔体流动速率） (297°C/5.0 kg)	7.0	g/10 min	ASTM D3159

机械性能	额定值	单位制	测试方法
抗张强度			ASTM D1708
23°C	37.9	MPa	ASTM D1708
140°C	11.4	MPa	ASTM D1708
160°C	8.62	MPa	ASTM D1708
180°C	6.21	MPa	ASTM D1708
200°C	3.45	MPa	ASTM D1708
伸长率			ASTM D1708
断裂, 23°C	300	%	ASTM D1708
断裂, 140°C	600	%	ASTM D1708
断裂, 160°C	650	%	ASTM D1708
断裂, 180°C	600	%	ASTM D1708
断裂, 200°C	600	%	ASTM D1708
弯曲模量	645	MPa	ASTM D790

热性能	额定值	单位制	测试方法
熔融温度	219 到 254	°C	ASTM D3159

可燃性	额定值	单位制	测试方法
极限氧指数	34	%	ASTM D2863

挤出	额定值	单位制
料筒1区温度	288	°C
料筒2区温度	316	°C
料筒3区温度	321	°C
接头温度	321	°C
熔体温度	332 到 335	°C
口模温度	332	°C