Bisphenol AF is a fluorine containing fine chemical, mainly used as a vulcanizing agent of fluorine rubber, can make rubber products have good compression deformation resistance, chemical corrosion resistance and thermal stability; It can be used as a monomer to synthesize fluoropolyl (imide) amine, fluoropolyl polyester, fluoropolyl aromatic ether, fluoropolyl ether ketone, fluoropolyl polycarbonate, fluoropolyl epoxy resin, fluoropolyl polyurethane and other fluoropolymer. Widely used in microelectronics, optics, space technology and other aspects.