厚壁电线电缆PTFE POLYFLON F-303
¥174.00
填充粉PTFE POLYFLON L-5F
¥184.00
涂料填充级PTFE POLYFLON LDW-40
¥184.00
模压级PTFE POLYFLON M-111
¥174.00
轴承级PTFE POLYFLON M-112
¥174.00
垫圈应用PTFE POLYFLON M-12
¥174.00
日本大金高压缩比PTFE POLYFLON F-301
Daikin PTFE F-301 is a high molecular weight polytetrafluoroethylene fine powder resin for paste extrusion manufactured without the use of PFOA. F-301 has been specifically designed for the manufacture of un-sintered tapes, sintered tapes, coated wire and tubing at low to medium reduction ratios.
Density / Specific Gravity | 2.14 to 2.17 | g/cm | ASTM D4895 |
Apparent (Bulk) Density | 0.40 to 0.55 | g/cm | ASTM D4895 |
Particle Size | 400 to 700 | m | ASTM D4895 |
| Mechanical | Nominal Value | Unit | Test Method |
Tensile Strength | > 25.0 | MPa | ASTM D4895 |
Tensile Elongation(Break) | > 350 | % | ASTM D4895 |
| Additional Information | Nominal Value | Unit | Test Method |
Extrusion Pressure | 13.7 to 19.6 | MPa | Internal Method |
PTFE的摩擦因数随滑动速率的增大而增大，当线速度达到0. 5一1. 0m/s以上时趋于稳定;而且静摩擦因数小于动摩擦因数，将这种特性用于轴承制造，可减小其起动阻力，使之从起动到运转都十分平稳。PTFE的摩擦因数随随载荷增加而减小，当载荷达到0. 8 MPa以上时趋于恒定。在高速、高载荷下，PTFE的摩擦因数低于0. 01。从***温到PTFE熔点，
其摩擦因数几乎不变，只有在表面温度高于熔点时，摩擦因数为才急剧增大。
由于分子间引力小，PTFE的硬度低，易被其他材料磨损。但是，只要对磨材料表面粗糙度合适，可在相当程度上降低PTEF的磨损量。
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