Tefzel? HT-2181
共聚物
DuPont Fluoropolymers
產品說明：

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	
黃卡編號	
E54681-101244451
特性	
共聚物抗溶劑性抗撞擊性，良好良好的電氣性能良好耐磨損性流動性中等耐化學性良好耐氣候影響性能良好韌性良好水解穩定
用途	
薄膜電氣/電子應用領域閥門/閥門部件管件開關連接器密封件容器實驗室器具
外觀	
半透明
形式	
粒子
加工方法	
吹塑成型擠出樹脂傳遞成型壓縮模塑注射成型
物理性能	額定值	單位制	測試方法
比重	1.70	g/cm3	ASTM D792
表觀密度	1.30	g/cm3	內部方法
熔流率（熔體流動速率） (297°C/5.0 kg)	6.0	g/10 min	ASTM D3159
吸水率 (24 hr)	7.0E-3	%	ASTM D570
硬度	額定值	單位制	測試方法
肖氏硬度 (邵氏 D)	67		ASTM D2240
機械性能	額定值	單位制	測試方法
抗張強度 (23°C)	40.0	MPa	ASTM D638
伸長率 (斷裂, 23°C)	300	%	ASTM D638
彎曲模量 (23°C)	1000	MPa	ASTM D790
壓縮強度 (23°C)	17.0	MPa	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	ASTM D3418
線形熱膨脹系數 - 流動 (0 到 100°C)	1.3E-4	cm/cm/°C	ASTM D696
較高使用溫度	155	°C	UL 746
電氣性能	額定值	單位制	測試方法
體積電阻率	1.0E+17	ohms·cm	ASTM D257
介電強度 (0.250 mm)	70	kV/mm	ASTM D149
介電常數 (23°C, 1 MHz)	2.50 到 2.60		ASTM D1531
耗散因數 (23°C, 1 MHz)	6.0E-3		ASTM D1531
耐電弧性	122	sec	ASTM D495
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	30 到 32	%	ASTM D2863
補充信息
Weather and Chemical Resistance: Excellent