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The detailed information on PTFE
- Jun 11, 2018 -

Product Name: PTFE

Molecular Formula:


Processing Methlod of PTFE: Polytetrafluoroethylene (PTFE) is formed by free radical polymerization of tetrafluoroethylene. Industrial polymerization is agitated in the presence of a large amount of water to disperse the reaction heat and to control the temperature. The polymerization is usually carried out at 4080 ℃ ~ 326kg / cm ~ 2 pressure with inorganic persulfate, organic peroxide as initiator or redox initiator. The heat release of tetrafluoroethylene per mole was 171.38 kJ. Dispersion polymerization must be supplemented with perfluorinated surfactants, such as perfluorooctanoic acid or its salts.

Application of PTFE: Can be made into rods, plates, pipes, films and all kinds of abnormal products, for aerospace, chemical, electronics, machinery, medicine and other fields.

Remark: PTFE (F4) is one of the best corrosion resistant materials in the world. It can be used in any kind of chemical medium for a long time. It has solved many problems in the fields of chemical industry, petroleum, pharmacy and so on. PTFE seals, gaskets, gaskets. PTFE seals, gaskets and gaskets are made of suspension polymerized polytetrafluoroethylene resin. Compared with other plastics polytetrafluoroethylene (PTFE) has been widely used as sealing and filling materials for its excellent chemical corrosion resistance and temperature resistance. With high chemical stability and excellent chemical corrosion resistance, such as strong acid, alkali, strong oxidant, etc., has outstanding heat, cold and friction resistance, long-term use temperature range of -200-250 ℃, and excellent electrical insulation, And not affected by temperature and frequency. In addition, it has the characteristics of non-stick, non-absorbent, non-burning and so on. Suspension resin is usually molded and sintered, and the rod, plate or other profile can be processed by further machining methods such as plane, drill, milling and so on. After turning and drawing, the bar can be made into directional film.

The property of PTFE:

1. Strength (high strength to weight ratio) 2. Chemical inertia 3. Biological adaptability 4. High thermal resistance 5. High chemical impedance in harsh environments. Low flammability 7. Low friction coefficient 8. Low dielectric constant 9. Low water absorption 10. Good weathering property

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