【氟树脂】 POLYFLON PTFE-M（悬浮树脂）聚四氟乙烯（PTFE）材料性能简介
聚四氟乙烯（PTFE）简称F-4，是一种工程材料，它具有其他各种工程塑料的特点,而其性能是其他各种工程塑料所不可比拟的；它的的频率范围及高低温使用范围、的化学稳定性，高的电绝缘性，突出的表面不粘性，良好的润滑以及耐大气老化性能，使聚四氟乙烯在解决工业各部门的有关技术中，属于其他塑料之上
Polytetrafluoroethylene
DAIKIN AMERICA, INC.
产品说明：
Daikin PTFE (polytetrafluoroethylene) molding powders are excellent, fine cut resins, well suited for a variety of demanding chemical, mechanical, electrical and non-stick surface applications. These PTFE resins are fully fluorinated and have the best thermal, electrical, and chemical properties of all fluoropolymers with a continuous service rating of 500°F (260°C). Daikin PTFE molding powders are available in homopolymer and modified fine cut grades.
Daikin PTFE molding powders can be used continuously at temperatures up to 260°C (500°F) and for short periods of time at higher temperatures. They also possess excellent low temperature strength.
Daikin PTFE molding powders are completely inert to attack by all chemicals except hightemperature, high-pressure elemental fluorine gas, molten alkaline metals and chlorine trifluoride.
The non-polar molecular structure makes Daikin PTFE molding powders ideal for use as high-frequency insulating material. The dielectric constant and dissipation factor are uniformly low over a wide frequency range.
Under ordinary conditions of use, Daikin PTFE molding powders possess the lowest coefficient of friction of any solid material. Also, the non-stick properties of these products prevent most materials from adhering to them.
Chemical/Mechanical—Packings, gaskets, diaphragms, bellows, corrosion-resistant linings, piping components, pump parts, O-rings, V-rings, bushings, slide bearings, etc.
Electrical/Other—Insulating skived tape, insulating sleeves, terminals, connectors, sockets, spacers, electronic parts, laboratory equipment, etc.
物性信息：
| 添加剂 | 未指定的添加剂 |
| 特性 | 低摩擦系数 低温强度 高分子量 可焊接 良好的抗蠕变性 耐化学性良好 无粘性 粘度，高 |
| 用途 | 包装 泵件 衬里 衬套 带子 电气元件 垫圈 隔膜 管道系统 绝缘屏蔽 连接器 片材 实验室器具 轴承 |
| 机构评级 | FDA 21 CFR 177.1550 |
| 形式 | 粉状 |
| 加工方法 | 烧结 压缩模塑 |
| 比重 | 2.17 | g/cm³ | ASTM D4894 |
| 表观密度 | 0.36 | g/cm³ | ASTM D4894 |
| 收缩率 - 流动 | 4.4 | % | 内部方法 |
| 抗张强度 (屈服, 1.50 mm) | 40.0 | MPa | ASTM D4894 |
| 伸长率 (断裂, 1.50 mm) | 500 | % | ASTM D4894 |
| 压缩强度 | ASTM D695 | ||
| 0% 应变 1 | 8.70 | MPa | ASTM D695 |
| 1% 应变 2 | 5.90 | MPa | ASTM D695 |
| 25% 应变 3 | 28.6 | MPa | ASTM D695 |
| 负载变形 | ASTM D621 | ||
| 25°C, 14 MPa | 10.6 | % | ASTM D621 |
| 100°C, 14 MPa | 21.7 | % | ASTM D621 |
| 200°C, 6.9 MPa | 14.9 | % | ASTM D621 |
| 压缩变形 | ASTM D621 | ||
| 25°C 4 | 3.0 | % | ASTM D621 |
| 100°C 5 | 7.4 | % | ASTM D621 |
| 200°C 6 | 4.1 | % | ASTM D621 |
| 连续使用温度 | 260 | °C | |
| 熔融温度 | 324 | °C | DSC |
| 表面电阻率 | > 1.0E+15 | ohms | ASTM D257 |
| 体积电阻率 | > 1.0E+18 | ohms·cm | ASTM D257 |
| 介电强度 | 140 | kV/mm | |
| 介电常数 (1 kHz) | < 2.10 | ASTM D150 | |
| 耗散因数 (1 kHz) | < 1.0E-4 | ASTM D150 |
| MIT Flexural Life | 3.00E+6 | ASTM D2178 | |
| Stretching Void Index | 62.0 | ASTM D4895 |