Polytetrafluoroethylene (PTFE) is known as the “king of plastics”, and Roy Planck, the father of fluororesin, 1936 In, DuPont company began to study Freon’s substitutes. They collected part of tetrafluoroethylene and stored it in the steel cylinder for the next experiment the next day. However, when the pressure reducing valve of the steel cylinder was opened the next day, there was no gas overflow. They thought it was a gas leak, but when weighing the steel cylinder, they found that the steel cylinder did not lose weight. They saw through the cylinder and found a lot of white powder. This is PTFE.
Their research found that PTFE has excellent properties and can be used as a fusion proof sealing washer for atomic bombs, shells, etc., so the U.S. military kept the technology secret during World War II. It was not until the end of World War II that it was declassified, and PTFE was industrialized in 1946.
It has solved many problems in chemical, petroleum, pharmaceutical and other fields. PTFE seal, gasket, gasket. PTFE seal, gasket, gasket are made of suspension PTFE resin molding. Compared with other plastics, PTFE has the characteristics of chemical corrosion resistance. It has been widely used as sealing material and filling material. The dispersing liquid can be used as insulating impregnating liquid of various materials and anticorrosive coating on the surface of metal, glass and pottery. All kinds of Teflon ring, Teflon gasket, Teflon packing are widely used in all kinds of anticorrosive pipeline flange sealing. In addition, it can also be used for spinning, PTFE fiber – fluoron (Teflon).
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