Generic Name: 乙烯四氟乙烯共聚物 (ETFE) - 提供方: The Chemours Company
Tefzel ™ ETFE HT-2181 is a general-purpose fluoroplastic resin available in translucent, 2.5-mm (0.1-in) pellets. Compared with other grades of Tefzel ™ , its most unique features are an intermediate flow rate and a balance of properties that make it suitable for a variety of processes and demanding end uses. Table 1 shows typical property data for Tefzel ™ ETFE HT-2181.
Tefzel® HT-2181 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 other fluorocarbon resins. They are mechanically tough and offer an excellent balance of properties.
Tefzel® HT-2181 can perform successfully in applications where other thermoplastics are lacking in mechanical toughness, broad thermal capability, ability to meet difficult environmental conditions, or limited by fabricating problems.
Properly processed products made from neat Tefzel® HT-2181 are inert to most solvents and chemicals, hydrolytically stable, and weather-resistant. The recommended upper service temperature is 155°C (311°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.
Typical End Products
Tefzel ® HT-2181 is ideal for many end products, including electrical components, such as sleeving, coil forms, sockets, connectors, and switches; lab ware, such as tubing, valves, containers, and dishes; battery or instrument components that require chemical inertness; chemical service items, such as valve components, seal glands, pipe plugs, and corrugated tubing; and film.
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单位: SI
总览
材料状态
已商用：当前有效
资料 1Technical Datasheet (English)
UL 黄卡 2E54681-101244451
搜索 UL 黄卡The Chemours Company
Tefzel®
供货地区北美洲
拉丁美洲
欧洲
亚太地区
特性Excellent Weather Resistance
共聚物
抗溶剂性
良好的电气性能
良好抗撞击性
耐化学品性能，良好
耐磨损性，良好
韧性良好
水解稳定
中等流动性
用途薄膜
电气/电子应用领域
阀门/阀门部件
管件
开关
连接器
密封件
容器
实验室器具
外观半透明
形式粒子
加工方法吹塑成型
挤出
树脂传递成型
压缩模塑
注射成型
物理性能额定值
单位制
测试方法
密度 / 比重1.70
g/cm³
ASTM D792表观密度1.30
g/cm³
内部方法熔流率（熔体流动速率） (297°C/5.0 kg)6.0
g/10 min
ASTM D3159吸水率 (24 hr)7.0E-3
%
ASTM D570机械性能额定值
单位制
测试方法
抗张强度 (23°C)41.4
MPa
ASTM D638伸长率 (断裂, 23°C)300
%
ASTM D638弯曲模量 (23°C)1000
MPa
ASTM D790压缩强度 (23°C)17.0
MPa
ASTM D695冲击性能额定值
单位制
测试方法
悬壁梁缺口冲击强度 (23°C)无断裂
ASTM D256硬度
额定值
单位制
测试方法
肖氏硬度 (邵氏 D)67
ASTM D2240热性能
额定值
单位制
测试方法
熔融温度255 到 280
°C
ASTM D3418线形热膨胀系数 - 流动 (0 到 100°C)1.3E-4
cm/cm/°C
ASTM D696最高使用温度155
°C
UL 746电气性能额定值
单位制
测试方法
体积电阻率1.0E+17
ohms·cm
ASTM D257介电强度 (0.250 mm)70
kV/mm
ASTM D149介电常数 (23°C, 1 MHz)2.50 到 2.60
ASTM D1531耗散因数 (23°C, 1 MHz)
6.0E-3
ASTM D1531耐电弧性
122
sec
ASTM D495可燃性额定值
单位制
测试方法
UL 阻燃等级V-0
UL 94极限氧指数
30 到 32
%
ASTM D2863