Polytetrafluoroethylene
DuPont Fluoropolymers
产品说明：
DuPont ™ Teflon ® PTFE 605XT X is a polytetrafluoroethylene fine powder resin used primarily for paste extrusion. Teflon ® PTFE 605XT X offers the excellent combination of properties typical of the Teflon ® fluoropolymer resins:
non-aging characteristics;
chemical inertness to nearly all industrial chemicals and solvents;
exceptional dielectric properties, stable with frequency and temperature;
toughness and flexibility;
low coefficient of friction;
non-stick characteristics;
negligible moisture absorption;
excellent weather resistance;
service temperature up to 260°C (500°F);
useful properties at -240 °C (-400 °F);
moderate stiffness and high ultimate elongation.
Teflon ® PTFE 605XT X is designed for processing at low to medium reduction ratios of 10:1 to 300:1. It is particularly suitable for unsintered stretched products and for sintered products with high mechanical properties.
Teflon ® PTFE 605XT X meets the re of ASTM D 4895-91a, Type I, Grade 4, Class A.
Typical Applications
Teflon ® PTFE 605XT X is mainly used for unsintered articles including filter membranes and gaskets. It is also used for making sintered products such pipe liners and tubes.
物性信息：
| 特性 | 低摩擦系数 低吸湿性 刚性，良好 高 ESCR（抗应力开裂） 抗溶剂性 良好的电气性能 良好的柔韧性 耐化学性良好 耐气候影响性能良好 韧性良好 食品接触的合规性 延高的拉伸率 |
| 用途 | 衬里 垫圈 管件 膜 |
| 机构评级 | FDA 21 CFR 177.1550 欧洲 10/1/2011 12:00:00 AM |
| 形式 | 粉状 |
| 加工方法 | 挤出 |
| 比重 | 2.15 | g/cm³ | ISO 12086, ASTM D4895 |
| 表观密度 | 0.54 | g/cm³ | ASTM D4895, ISO 12086 |
| 平均颗粒尺寸 | |||
| -- | 680 | µm | ASTM D4895 |
| -- | 680 | µm | ISO 12086 |
| Extrusion Pressure - at RR = 100:1 | |||
| -- | 7.00 | MPa | ASTM D4895 |
| -- | 7.00 | MPa | ISO 12086 |
| 熔融温度 | ASTM D4895, ISO 12086 | ||
| -- 1 | 326 | °C | ASTM D4895, ISO 12086 |
| -- 2 | 344 | °C | ASTM D4895, ISO 12086 |