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Points For Attention In CNC Machining Of Polytetrafluoroethylene
- Nov 24, 2016 -

A, thermoplastics: This kind of plastic case of melting or softening, cooling and hardening, this process can be repeated many times. Thermoplastics are polyvinyl chloride, polypropylene, polyethylene, polystyrene and its copolymer ABS, nylon, polyoxymethylene, polycarbonate, chlorinated polyether, polyphenylene oxide and polysulfone. They all have a certain physical and mechanical properties. Also some varieties such as polytetrafluoroethylene plastic, polyimide, etc., has a very good corrosion resistance, excellent insulation and low coefficient of friction. Thermoplastics have lower heat resistance and rigidity.

B, thermosetting plastic: at a certain temperature, this kind of plastic after a period of heating, then add curing agent, can be cured. Cured plastic, hard, insoluble in the solvent, the heating does not make it soften, no longer plasticity. If the temperature is too high it will break down. Thermosetting plastics are phenolic, unsaturated polyester, amino, epoxy, furan, silicone resin and PDAP. This type of plastic heat resistance is better, not easily deformed.