高透明挤出ETFE 207美国杜邦

Tefzel? 207
乙烯四氟乙烯共聚物
DuPont Fluoropolymers
产品说明：

DuPont? Tefzel 207 fluoropolymer 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 but still maintains a service temperature of 150°C (302°F).

Tefzel ? 207 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 ? 207 makes it uniquely suitable for high-speed processing, especially for extruded coatings and injection molding of slender, thin-walled or intricate shapes. Properly processed products made from neat Tefzel ? 207 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 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 ? 207 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 fasteners; battery or instrument components that require chemical inertness; and mechanical parts. The high melt flow rate of this product makes it ideal for injection molding and thin wall extrusion.

Tefzel? 207 物性表
基本信息	
特性	
共聚物抗溶剂性抗撞击性，高良好的电气性能良好耐磨损性流动性高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	
薄壁部件电气/电子应用领域阀门/阀门部件管件紧固件开关连接器容器实验室器具
外观	
半透明
形式	
粒子
加工方法	
吹塑成型挤出挤出涂层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
熔流率（熔体流动速率） (297°C/5.0 kg)	30	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)	40.0	MPa	ASTM D3159
伸长率 (断裂, 23°C)	300	%	ASTM D3159
弯曲模量 (23°C)	1000	MPa	ASTM D790
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	250 到 280	°C	ASTM D3159
较高使用温度	150	°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)	67	kV/mm	ASTM D149
介电常数 (23°C, 1 MHz)	2.60 到 2.80		ASTM D150
耗散因数 (23°C, 1 MHz)	9.0E-3		ASTM D150
可燃性	额定值	单位制	测试方法
极限氧指数	30 到 32	%	ASTM D2863
补充信息
Weather and Chemical Resistance: Excellent