|
Tefzel 207
乙烯四氟乙烯共聚物
DuPont Fluoropolymers
產品說明
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.
總體
|
材料狀態
|
• 已商用：當前有效
|
|
|
|
|
供貨地區
|
• 北美洲
|
• 歐洲
|
|
|
|
• 南美洲
|
• 亞太地區
|
|
|
|
|
|
|
|
|
• 抗溶解性
|
• 耐化學性良好
|
• 韌性良好
|
|
|
性能特點
|
• 抗撞擊性，良好
|
• 耐磨蝕性，良好
|
|
|
• 水解穩定
|
|
|
|
• 流動性高
|
• 耐氣候影響性能良好
|
|
|
|
|
|
|
|
• 薄壁部件
|
• 管道
|
• 容器
|
|
|
用途
|
• 電氣/電子應用領域
|
• 緊固件
|
|
|
• 實驗室器具
|
|
|
|
• 閥門/閥門部件
|
• 連接器
|
|
|
|
|
|
|
外觀
|
• 半透明
|
|
|
|
|
形式
|
• 顆粒料
|
|
|
|
|
加工方法
|
• 吹塑成型
|
• 擠壓層涂法
|
• 注射成型
|
|
|
• 擠出
|
• 壓縮模塑
|
|
|
|
|
|
|
|
|
|
|
|
|
物理性能
|
|
額定值單位制
|
測試方法
|
|
|
比重
|
|
1.70g/cm³
|
ASTM D792
|
|
|
熔流率 (297°C/5.0 kg)
|
|
30g/10 min
|
ASTM D1238
|
|
|
吸水率 (24 hr)
|
|
0.0070%
|
ASTM D570
|
|
|
機械性能
|
|
額定值單位制
|
測試方法
|
|
|
抗張強度 (23°C)
|
|
40.0MPa
|
ASTM D638
|
|
|
伸長率 (斷裂, 23°C)
|
|
300%
|
ASTM D638
|
|
|
彎曲模量 (23°C)
|
|
1030MPa
|
ASTM D790
|
|
|
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
|
|
|
|
熔融溫度
|
|
255 到 280°C
|
|
|
|
電氣性能
|
|
額定值單位制
|
測試方法
|
|
|
體積電阻率
|
|
1.0E+17ohm·cm
|
ASTM D257
|
|
|
介電強度 (0.254 mm)
|
|
67kV/mm
|
ASTM D149
|
|
|
介電常數 (23°C, 1 MHz)
|
|
2.70
|
ASTM D150
|
|
|
耗散因數 (23°C, 1 MHz)
|
|
0.0090
|
ASTM D150
|
|
|
可燃性
|
|
額定值單位制
|
測試方法
|
|
|
極限氧指數
|
|
31%
|
ASTM D2863
|
|
|
補充信息
|
|
|
|
|
|
Limiting Oxygen Index, ASTM D2863: 30 to 32%
|
|
|
|
|
Dielectric Constant, ASTM D1531, 1 MHz, 73°F: 2.6 to 2.8
|
|
|
|
|
備注
|
|
|
|
|
|
1 一般屬性：這些不能被視為規格。
|
|
|
|
|
|
1 / 1
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
