PTFE maintains excellent mechanical properties in the wide temperature range of-196 ~ 260℃, and perfluorocarbon polymer is not brittle at low temperature.

1, non-stick: almost all substances do not stick to PTFE coating. Very thin films also show good non-adhesion characteristics.

2. Heat resistance: PTFE coating has excellent heat resistance and low temperature resistance. It can resist high temperature to 300℃ in a short time, and generally can be used continuously between 240-260℃. It has obvious thermal stability and can work at freezing temperature without embrittlement and melting at high temperature.

The Chinese trade names of expansion materials are Teflon, Teflon, PTFE, Teflon, PTFE and so on.

It is a polymer compound polymerized from tetrafluoroethylene, and the structural formula is -[-CF2-CF2-]n-, which has excellent chemical stability and corrosion resistance.

It is one of the best corrosion-resistant materials in the world today. It is resistant to all other chemicals except molten alkali metal, chlorine trifluoride, chlorine pentafluoride and liquid fluorine, and will not change when boiled in aqua regia. Widely used in various occasions that need acid and alkali resistance and organic solvents.

Baidu encyclopedia-PTFE