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ETFE 280價(jià)格

 

Tefzel 280
乙烯四氟乙烯共聚物
DuPont Fluoropolymers

產(chǎn)品說明

DuPont™ Tefzel® 280 fluoropolymer is a premium resin available in translucent, 2.5-mm (0.1-in) pellets. Compared with other grades of Tefzel®, its most unique features are a relatively low flow rate, a greatly enhanced flex life, and resistance to environmental stress.

Tefzel® 280 and the other Tefzel® fluoropolymers are melt processible, modified copolymers of ethylene and tetrafluoroethylene. They are highperformance resins that can be processed at relatively high rates compared with fluorocarbon resins. They are mechanically tough and offer an excellent balance of properties.

Tefzel® 280 is preferred for applications where other thermoplastics are lacking in mechanical toughness, broad thermal capability, ability to meet unusual thermal, mechanical, and chemical environmental extremes, or limited by fabricating problems. Examples are components and linings for the chemical industry and molded parts with metal inserts of thick sections for use at high temperatures.

Properly processed products made from neat Tefzel® 280 are inert to most solvents and chemicals, hydrolytically stable, and weather resistant. 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 UL94 method flame rating is V-0. They are resistant to environmental stress cracking and have outstanding impact strength, cut-through and abrasion resistance. High-energy radiation resistance meets IEEE 383 and the resin is approved for nuclear power plant use.

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(dāng)前有效   
供貨地區(qū) • 北美洲 • 歐洲  
 • 南美洲 • 亞太地區(qū)  
    
 • 高 ESCR（抗應(yīng)力裂紋） • 流動(dòng)性低 • 耐熱性，高 
性能特點(diǎn) • 抗輻射性 • 耐化學(xué)性良好  
 • 抗溶解性 • 耐磨蝕性，良好 • 水解穩(wěn)定 
    
 • 抗撞擊性，良好 • 耐氣候影響性能良好  
 • Abrasion Resistant Liners • 電氣/電子應(yīng)用領(lǐng)域 • 核能應(yīng)用 
用途 • 泵件 • 電器導(dǎo)線絕緣材料 • 緊固件 
 • 薄膜 • 閥門/閥門部件 • 零件裝置 
    
 • 襯里 • 管道 • 型號(hào) 
機(jī)構(gòu)評(píng)級(jí) • IEEE 383   
外觀 • 半透明   
形式 • 顆粒料   
加工方法 • 吹塑成型 • 樹脂傳遞成型 • 注射成型 
 • 擠出 • 壓縮模塑  
    
    
物理性能  額定值單位制 測(cè)試方法 
比重  1.70g/cm³ ASTM D792 
熔流率 (297°C/5.0 kg)  4.0g/10 min ASTM D1238 
吸水率 (24 hr)  0.0070% ASTM D570 
機(jī)械性能  額定值單位制 測(cè)試方法 
抗張強(qiáng)度 (23°C)  46.2MPa ASTM D638 
伸長(zhǎng)率 (斷裂, 23°C)  300% ASTM D638 
彎曲模量 (23°C)  1170MPa ASTM D790 
壓縮強(qiáng)度  37.9MPa ASTM D695 
沖擊性能  額定值單位制 測(cè)試方法 
懸壁梁缺口沖擊強(qiáng)度 (23°C)  無(wú)斷裂 ASTM D256 
硬度  額定值單位制 測(cè)試方法 
硬度計(jì)硬度 (邵氏 D)  72 ASTM D2240 
熱性能  額定值單位制 測(cè)試方法 
熔融溫度  255 到 280°C  
線形膨脹系數(shù) - 流動(dòng) (0 到 100°C)  0.00013cm/cm/°C ASTM D696 
電氣性能  額定值單位制 測(cè)試方法 
體積電阻率  1.0E+17ohm•cm ASTM D257 
介電強(qiáng)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)  0.0072 ASTM D150 
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Tefzel 280  2012年9月30日
乙烯四氟乙烯共聚物  
DuPont Fluoropolymers  
電氣性能 額定值單位制 測(cè)試方法
耐電弧性 122sec ASTM D495
可燃性 額定值單位制 測(cè)試方法
極限氧指數(shù) 31% ASTM D2863
補(bǔ)充信息  
Limiting Oxygen Index, ASTM D2863: 30 to 32%  
Dielectric Constant, ASTM D1531, 1 MHz, 73°F: 2.5 to 2.6  
備注  
1 一般屬性：這些不能被視為規(guī)格。