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Teflon® FEP 140
聚全氟乙烯-丙烯树脂
DuPont Fluoropolymers

产品说明

Teflon® FEP 140 fluoropolymer resin is a meltprocessible fluoropolymer resin suitable for extrusion as a primary coating for heavy wire gauges (AWG #11 and larger) and for limited jacketing applications.

This resin provides the electrical and mechanical properties needed for low-voltage applications. Teflon® FEP 140 has a lower flow rate than either Teflon® 3100 or Teflon® FEP 100. This low melt flow corresponds to a high molecular weight that provides significant stress crack resistance for thick-walled constructions. The low melt flow, however, significantly reduces the rate at which Teflon® FEP 140 can be extruded.

Like all Teflon® fluoropolymer resins, Teflon® FEP 140 offers an excellent combination of properties: chemical inertness, exceptional dielectric properties, heat resistance, toughness, flexibility, low coefficient of friction, nonstick characteristics, negligible moisture absorption, low flammability, performance at temperature extremes, and weather resistance.

总体    
材料状态 • 已商用：当前有效   
供货地区 • 北美洲 • 欧洲  
 • 低摩擦系数 • 流动性低 • 吸潮性差 
性能特点 • 高 ESCR（抗应力裂纹） • 耐化学性良好  
   • 阻燃性能 
 • 高分子量 • 耐气候影响性能良好  
    
用途 • 电缆护套 • 电线电缆应用 • 通信电线护套 
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 2.13g/cm³ ASTM D792
熔流率 (372°C/5.0 kg) 2.8g/10 min ASTM D1238
机械性能 额定值单位制 测试方法
抗张强度 (屈服) 31.0MPa ASTM D638
伸长率 (断裂) 350% ASTM D638
热性能 额定值单位制 
熔融温度 266°C 
电气性能 额定值单位制 测试方法
介电强度  ASTM D149
0.254 mm 79kV/mm 
3.18 mm 20kV/mm 
介电常数  ASTM D150
100 kHz 2.06 
1 MHz 2.05 
耗散因数  ASTM D150
100 kHz 0.00030 
1 MHz 0.00060 
  
挤出 额定值单位制 
第1气缸区温度 366°C 
第2气缸区温度 382°C 
第3气缸区温度 388°C 
第4气缸区温度 396°C 
第5气缸区温度 399°C 
连接器温度 399°C 
熔体温度 397°C 
模具温度 410°C 
挤压说明  
Processing conditions for extruding Teflon® FEP 140 on AWG #14 Solid Copper Wire  
60 mm Extruder with 30:1 L/D  
Clamp Temperature: 750°F  
Crosshead Temperature: 760°F