1. Preparation of polymer

Fluorosilicon modified polyurethane is an emulsified lotion mixed with perfluoro olefin, hydroxy silicone oil, ethylene oxide and isocyanate polyester as raw materials. It has excellent waterproof and oil proof properties and is mostly used in fabrics and leather.

2. Preparation of polymer monomer

Scholars study biphenyl compounds containing nitro group and perfluoroxy group. Each phenyl contains perfluoroxy agent, which can be used as raw materials to prepare aromatic resin containing oxygen diamine. It has strong heat resistance and corrosion resistance, good hydrophobicity and low dielectric constant.

3. Polymer additives

The team has prepared perfluorononenyloxy phthalic anhydride, which is a new type of epoxy curing agent. Under the action of boiling water, it can become a conventional curing epoxy resin, with very good heat resistance, low friction degree and very similar tension of adjacent surfaces of polytetrafluoroethylene. The raw materials are triethylamine, 4-hydroxyphthalic acid and perfluoropropylene trimer. After the reaction, dilute hydrochloric acid is used for neutralization, and after extraction, perfluoroanenyloxy phthalic anhydride with very high purity can be obtained.

4. Surfactant

Fluorosulfate is a kind of surfactant, which is used to modify surface fibers, metals and resins. In fluoropolymer system, it is an emulsifier for lotion polymerization. 13a is prepared from trimethyl alcohol ethane and 2-dimethoxypropane. 13a is compatible with triethylamine in acetonitrile and can be converted into hexafluoropropylene trimer at room temperature. 13b can be obtained by stirring for 17h, concentrating after washing. 13b Add hydrochloric acid in ethanol for reflux, and the white solid of alcohol 13 can be obtained after hydrolysis.

5. Solvent

Polymer foaming agent is a kind of foaming polymer containing dissolved and dispersed in hydrofluoroether. Hydrofluorides and perfluorinated compounds are liquid at 20 ℃, and hexafluoropropylene trimer is also liquid. The charged clear disinfectant used for the surface care of mobile phones can be used for sterilization and cleaning, especially for the areas where the keys are not sensitive in mobile phones. It is composed of 1, 1, 1, 2, 2, 3, 4, 5, 5, 5-decafluoropentane, methoxy 9-fluorobutane, monochloropentafluoropropane, dichloro - fluoroethane, hexafluoropropylene dimer and hexafluoropropylene trimer, one of the daily chemical essence, disinfectant and stabilizer.

6. Others

The other is to reverse apply hexafluoropropylene trimer and trifluoromethyltrimethylsilane loaded with fluorine resin, then add DMF to react with acidic potassium fluoride, stir vigorously and place at room temperature.