Polytetrafluoroethylene (abbreviated as Teflon or PTFE, F4) is widely known as the "King of Plastics" because of its wide application, and is transliterated into Chinese as "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", and so on.
Polytetrafluoroethylene is a polymer compound polymerized from tetrafluoroethylene, which has excellent chemical stability and corrosion resistance (it is one of the corrosion resistant materials in the world today. It can resist all other chemicals except molten metal sodium and liquid fluoride, and it does not change when boiled in aqua regia, and is widely used in various working conditions requiring acid, alkali and organic solvent resistance), sealing, high lubrication and non viscosity Electrical insulation, good aging resistance and large temperature resistance span (can work for a long time under the temperature of+250 ℃ to - 180 ℃).
Polytetrafluoroethylene itself is not toxic to humans, but ammonium perfluorooctanoate (PFOA), one of the raw materials used in the production process, is considered to have carcinogenic effect.
Its birth has solved many problems in the world's chemical, petroleum, pharmaceutical and other fields. It has been widely used as sealing material and filling material.
High temperature resistance - operating temperature up to 250 ℃.
Low temperature resistance - good mechanical toughness; The elongation of 5% can be maintained even if the temperature drops to - 196 ℃.
Corrosion resistance: It is inert to most chemicals and solvents and can resist strong acids and alkalis, aqua regia and various organic solvents.
Weather resistance - aging life in plastics.
High lubrication is the one with low friction coefficient among solid materials.
Non adhesion refers to the small surface tension of solid materials, which does not adhere to any substance.
Toxic free: It is physiologically inert and can be implanted into the body as an artificial blood vessel and organ for a long time without adverse reactions.
