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PTFE (Poly tetra fluoro ethylene) ie high performance engineering specialty polymer having exceptional properties with regard to chemical inertness, heat resistant, frictional properties & excellent electrical insulation characteristics etc.
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PTFE is a polymer which is mostly used in chemical, mechanical, electronics & electrical industries due to its unique properties as under
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| 1 |
Chemical inertness to all known chemicals however attacked by molten alkalis, Metal, chlorine, fluorine, related fluorine complexes at elevated temperature and pressure |
| 2 |
Wide operating temperature Range - 250 C to + 260 V at atmospheric pressure |
| 3 |
Non Toxic & Antistick Properties |
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Resistance to solvents, insoluble in all solvents up to 260 C Certain high fluorinated oils swells & dissolve PTFE at temperature close to crystalline melting point. |
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Negligible water absorption |
| 6 |
Excellent weathering resistance |
| 7 |
Outstanding electrical / insulating properties over wde frequency range |
| 8 |
Non flammable |
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Resistance to radiation: electrical properties remain practically unchanged during & after irradiation, both in air & vacuum. |
| Types of PTFE |
| 1 | Virgin PTFE |
| 2 | soft PTFE (Expanded PTFE) |
| 3 | Glass filled PTFE |
| 4 | Carbon filled PTFE |
| 5 | Graphite filled PTFE |
| 6 | Bronze filled PTFE |
