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Tefzel HT-2185
乙烯四氟乙烯共聚物
DuPont Fluoropolymers

產(chǎn)品說明

DuPont™ Tefzel® HT-2185 fluoropolymer resin is a special-purpose resin available in translucent, 2.5-mm (0.1-in) pellets. Compared with other grades of Tefzel®, it has a higher flow rate.

Tefzel® HT-2185 and the other Tefzel® fluoropolymers are melt processible, modified copolymers of ethylene and tetrafluoroethylene. They are high-performance resins that can be processed at relatively high rates compared with fluorocarbon resins. They are mechanically tough and offer an excellent balance of properties.

The relatively high flow rate of Tefzel® HT-2185 makes it uniquely suitable for high-speed processing, especially for extruded coatings and injection molding of slender, thin-walled, or intricate shapes. Molded or extruded products made from Tefzel® HT-2185 are preferred for uses that do not involve significant flexural or tensile stress at elevated temperatures. Higher viscosity products such as Tefzel® HT-2181 and Tefzel® HT-2183 are preferred for these applications.

Properly processed products made from neat Tefzel® HT-2185 are inert to most solvents and chemicals, hydrolytically stable, and weather-resistant. The recommended upper service temperature is 150°C (302°F); useful properties are retained at cryogenic ranges. The level and stability of dielectric properties are excellent, and the flame rating is V-0 by the UL94 method. Mechanical properties include outstanding impact strength, cut-through, and abrasion resistance.

Statements, or data, regarding behavior in a flame situation are not intended to reflect hazards presented by this or any other material when under actual fire conditions.

總體

材料狀態(tài) • 已商用：當前有效   
供貨地區(qū) • 北美洲 • 歐洲  
 • 南美洲 • 亞太地區(qū)  
    
 • 抗溶解性 • 耐化學性良好 • 水解穩(wěn)定 
性能特點 • 抗撞擊性，高 • 耐磨蝕性，良好  
 • 流動性高 • 耐氣候影響性能良好  
 • 薄壁部件 • 管道 • 容器 
用途 • 電氣/電子應用領(lǐng)域 • 緊固件  
   • 實驗室器具 
 • 閥門/閥門部件 • 連接器  
    
形式 • 顆粒料   
加工方法 • 吹塑成型 • 擠壓層涂法 • 壓縮模塑 
 • 擠出 • 樹脂傳遞成型 • 注射成型 
    
    
物理性能  額定值單位制 測試方法 
比重  1.70g/cm³ ASTM D792 
表觀密度  1.30g/cm³ ASTM D1895 
熔流率 (297°C/5.0 kg)  11g/10 min ASTM D1238 
吸水率 (24 hr)  0.0070% ASTM D570 
機械性能  額定值單位制 測試方法 
抗張強度 (23°C)  41.4MPa ASTM D638 
伸長率 (斷裂, 23°C)  300% ASTM D638 
彎曲模量 (23°C)  1000MPa ASTM D790 
壓縮強度  37.9MPa ASTM D695 
沖擊性能  額定值單位制 測試方法 
懸壁梁缺口沖擊強度 (23°C)  無斷裂 ASTM D256 
熱性能  額定值單位制 測試方法 
熔融溫度  255 到 280°C  
線形膨脹系數(shù) - 流動 (0 到 100°C)  0.00013cm/cm/°C ASTM D696 
電氣性能  額定值單位制 測試方法 
體積電阻率  1.0E+17ohm•cm ASTM D257 
介電強度 (0.254 mm)  71kV/mm ASTM D149 
介電常數(shù) (23°C, 1 MHz)  2.55 ASTM D150 
耗散因數(shù) (23°C, 1 MHz)  0.0054 ASTM D150 
可燃性  額定值單位制 測試方法 
UL 阻燃等級  V-0 UL 94 
極限氧指數(shù)  31% ASTM D2863 
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Tefzel HT-2185 2012年9月30日
乙烯四氟乙烯共聚物
DuPont Fluoropolymers

補充信息
Limiting Oxygen Index, ASTM D2863: 30 to 32%
Dielectric Constant, ASTM D1531, 1 MHz, 73°F: 2.5 to 2.6