POLYFLON™ M-18
聚四氟乙烯
填料
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
POLYFLON™ M-18 物性表
| 基本信息 |
|
| 填料/增强材料 |
|
| 特性 |
低摩擦系数 低温强度 高分子量 均聚物 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 实验室器具 通用 轴承 |
| 机构评级 |
|
| 形式 |
|
| 加工方法 |
|
| 物理性能 |
额定值 |
单位制 |
测试方法 |
| 比重 |
2.16 |
g/cm3 |
ASTM D4894 |
| 表观密度 |
0.48 |
g/cm3 |
ASTM D4894 |
| 收缩率 - 流动 |
3.2 |
% |
内部方法 |
| 机械性能 |
额定值 |
单位制 |
测试方法 |
| 抗张强度 (屈服, 1.50 mm) |
43.0 |
MPa |
ASTM D4894 |
| 伸长率 (断裂, 1.50 mm) |
400 |
% |
ASTM D4894 |
| 压缩强度 |
|
|
ASTM D695 |
| 0% 应变 1 |
7.80 |
MPa |
ASTM D695 |
| 1% 应变 2 |
5.00 |
MPa |
ASTM D695 |
| 25% 应变 3 |
28.1 |
MPa |
ASTM D695 |
| 负载变形 |
|
|
ASTM D621 |
| 25°C, 14 MPa |
17.2 |
% |
ASTM D621 |
| 100°C, 14 MPa |
33.3 |
% |
ASTM D621 |
| 200°C, 6.9 MPa |
27.0 |
% |
ASTM D621 |
| 弹性体 |
额定值 |
单位制 |
测试方法 |
| 压缩永久变形 |
|
|
ASTM D621 |
| 25°C 4 |
8.6 |
% |
ASTM D621 |
| 100°C 5 |
20 |
% |
ASTM D621 |
| 200°C 6 |
16 |
% |
ASTM D621 |
| 热性能 |
额定值 |
单位制 |
测试方法 |
| 连续使用温度 |
260 |
°C |
|
| 熔融温度 |
327 |
°C |
DSC |
| 电气性能 |
额定值 |
单位制 |
测试方法 |
| 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 |
100 |
kV/mm |
|
| 介电常数 (1 kHz) |
< 2.10 |
|
ASTM D150 |
| 耗散因数 (1 kHz) |
< 1.0E-4 |
|
ASTM D150 |
| 补充信息 |
额定值 |
|
测试方法 |
| MIT Flexural Life |
5.00E+6 |
|
ASTM D2178 |
| Stretching Void Index |
300 |
|
ASTM D4895 |
