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Polytetrafluoroethylene ---- performance chapter
2022-11
PTFE has very high chemical resistance, for example, in concentrated sulfuric acid, nitric acid, hydrochloric acid, even boiling in aqua regia, its weight and performance are not changed, and almost insoluble in most solvents, only slightly soluble in full alkane (about 0.1g/100g) above 300 ℃. Polytetrafluoroethylene does not absorb moisture, non-combustible, extremely stable to oxygen and ultraviolet light, so it has excellent weather resistance.
Introduction of polytetrafluoroethylene film
PTFE film is made from molded and sintered cylindrical blanks, which are cut into film by machine tools and then calendered. Depending on the processing method, it can be divided into three types: directional film, semi-directional film and non-directional film, and the current PTFE film products include porous film, microfiltration film and color film.
The development process of polytetrafluoroethylene
The father of fluorine resin, Roy Plunkett, started to study the substitution of Freon in DuPont in 1936. They collected some of the tetrafluoroethylene and stored it in a cylinder to prepare for the next experiment the next day, but when they opened the pressure reducing valve of the cylinder the next day, there was no gas overflow. thought it was a gas leak, but when the cylinder was weighed, they found that the cylinder did not lose weight. They sawed open the cylinder and found a large amount of white powder, which was polytetrafluoroethylene.
Ltd.'s new website www.xcf-polymer.comHas been officially opened on January 1, 2020, and, once again, Our email address has also been changed toxxx@xcf-polymer.com and Please do not send further emails toxxx@cnxc.cnMailbox. Happy New Year to everyone!
2020-01