Tefzel 750
乙烯四氟乙烯共聚物
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.

总体

材料状态 • 已商用：当前有效   
供货地区 • 北美洲 • 欧洲  
 • 南美洲 • 亚太地区  
    
性能特点 • 低摩擦系数 • 良好的柔韧性 • 耐热性，高 
 • 可加工性，良好 • 耐化学性良好 • 韧性良好 
    
用途 • 电器导线绝缘材料 • 电线电缆应用  
形式 • 颗粒料   
加工方法 • 挤出   
    
物理性能  额定值单位制 测试方法 
比重  1.77g/cm³ ASTM D792 
熔流率 (297°C/5.0 kg)  7.0g/10 min ASTM D1238 
机械性能  额定值单位制 测试方法 
抗张强度   ASTM D638 
23°C  37.9MPa  
140°C  11.4MPa  
160°C  8.62MPa  
180°C  6.21MPa  
200°C  3.45MPa  
伸长率   ASTM D638 
断裂, 23°C  300%  
断裂, 140°C  600%  
断裂, 160°C  650%  
断裂, 180°C  600%  
断裂, 200°C  600%  
弯曲模量  645MPa ASTM D790 
热性能  额定值单位制  
熔融温度  219 到 254°C  
可燃性  额定值单位制 测试方法 
极限氧指数  34% ASTM D2863 
补充信息    

The values listed as Tensile Strength, ASTM D638, and Tensile Elongation @ Brk, ASTM D638, were tested in accordance with ASTM D1708. Specific Gravity, ASTM D792: 1.75 to 1.79 sp gr 23/23°C

MIT Flex Life: 120000

挤出 额定值单位制
第1气缸区温度 288°C
第2气缸区温度 316°C
第3气缸区温度 321°C
连接器温度 321°C
熔体温度 332 到 335°C
模具温度 332°C