挤出级ETFE HT-2181美国杜邦

Tefzel? HT-2181
乙烯四氟乙烯共聚物
DuPont Fluoropolymers
产品说明：

DuPont? Tefzel? HT-2181 fluoropolymer resin is a general-purpose 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.

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.
Tefzel? HT-2181 物性表
基本信息	
黄卡编号	
E54681-101244451
特性	
共聚物抗溶剂性抗撞击性，良好良好的电气性能良好耐磨损性流动性中等耐化学性良好耐气候影响性能良好韧性良好水解稳定
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
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
硬度	额定值	单位制	测试方法
肖氏硬度 (邵氏 D)	67		ASTM D2240
机械性能	额定值	单位制	测试方法
抗张强度 (23°C)	40.0	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
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
较高使用温度	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
补充信息
Weather and Chemical Resistance: Excellent