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Characteristics of PTFE sheet

PTFE board (also known as PTFE board, Teflon board, Teflon board) is divided into two types: molding and turning. Its products are widely used and have extremely superior comprehensive properties: high and low temperature resistance (-192°C-260°C), corrosion resistance (strong acid, strong alkali, aqua regia, etc.), weather resistance, high insulation, high lubrication, non-adhesion, Non-toxic and other excellent characteristics. Polytetrafluoroethylene (English abbreviation is Teflon or [PTFE, F4]), known as/commonly known as “Plastic King”, Chinese trade name “Teflon”, “Teflon” (teflon), “Teflon” , “Teflon”, “Teflon” and so on.
It is a high molecular compound polymerized by tetrafluoroethylene, and its simplified structure is -[-CF2-CF2-]n-, which has excellent chemical stability and corrosion resistance (polytetrafluoroethylene is referred to as PTFE or F4 , is one of the most corrosion-resistant materials in the world today, “Plastic King” is commonly known as polytetrafluoroethylene, it is a plastic with the best corrosion resistance. It is not affected by known acids, alkalis, salts, oxidants Corrosion, even aqua regia has nothing to do with it, so it is named plastic king. It is resistant to all other chemicals except molten metal sodium and liquid fluorine. Non-sticky, electrical insulation and good aging resistance, excellent temperature resistance (can work for a long time at a temperature of +250°C to -180°C). PTFE itself is not toxic to humans, but it is used in the production process One of the raw materials of perfluorooctanoate ammonium (PFOA) is considered to be a possible carcinogen.
Temperature -20~250°C (-4~+482°F), allowing sudden cooling and sudden heating, or alternate operation of cold and hot.
Pressure -0.1~6.4Mpa (Full vacuum to 64kgf/cm2) (Full vacuum to 64kgf/cm2)
Its production has solved many problems in the fields of chemical industry, petroleum and pharmaceuticals in our country. PTFE seals, gaskets, gaskets, PTFE seals, and gaskets are made of suspension polymerized PTFE resin molding. Compared with other plastics, PTFE has the characteristics of chemical corrosion resistance, and it has been widely used as sealing material and filling material.
Its complete thermal decomposition products at about 500 degrees Celsius include tetrafluoroethylene, hexafluoropropylene and octafluorocyclobutane, which will decompose highly corrosive fluorine-containing gases at high temperatures.


Post time: Jan-17-2023