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Tetrafluorocarbon is a polymer of tetrafluoroethylene. The English abbreviation is PTFE. The basic structure of polytetrafluoroethylene is - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 -. Polytetrafluoroethylene is widely used in various anti-acid bases and organic solvents. It is not toxic to humans, but one of the raw materials used in the production process, perfluorooctanoic acid (PFOA), is considered to be likely to be carcinogenic.

Polytetrafluoroethylene can be formed by compression or extrusion; it can also be made into an aqueous dispersion for coating, impregnation or fiber making. PTFE is widely used in high-temperature, corrosion-resistant materials, insulating materials, anti-adhesive coatings, etc. in the atomic energy, aerospace, electronics, electrical, chemical, machinery, instrumentation, instrumentation, construction, textile, food and other industries.

Insulation: It is not affected by the environment and frequency. The volume resistance can reach 1018 ohm·cm, the dielectric loss is small, and the breakdown voltage is high.

High and low temperature resistance: The influence on temperature is not changed much, and the temperature range is wide. The temperature can be used from -190 to 260 °C.

Self-lubricating: It has the smallest coefficient of friction in plastic and is an ideal oil-free lubricating material.

Non-sticky surface: Known solid materials do not adhere to the surface and are a solid material with the lowest surface energy.

Resistance to atmospheric aging, radiation resistance and low permeability: long-term exposure to the atmosphere, surface and properties remain unchanged.