▎ 摘　　要

NOVELTY - Use of fluorine and nitrogen co-doped graphene oxide hydrogel in styrene-acrylic emulsion liquid prepared by adding triethylamine tri-hydrofluoride into the graphene oxide aqueous solution, reacting for 6-24 hours at 120-180℃ and post-processing. USE - The fluorine and nitrogen co-doped graphene oxide hydrogel is useful in styrene-acrylic emulsion liquid (claimed). ADVANTAGE - The hydrogel: has high dispersibility and excellent corrosion resistance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a method for preparing fluorine-nitrogen co-doped graphene oxide hydrogel modified styrene-acrylate emulsion comprising adding the fluorine-nitrogen co-doped graphene oxide hydrogel into water to be uniformly dispersed to obtain a fluorine-nitrogen co-doped graphene oxide aqueous dispersion, uniformly mixing the fluorine-nitrogen co-doped graphene oxide water dispersion and a styrene-acrylic emulsion, adding an auxiliary agent and uniformly stirring to obtain the product, where the preparation method of fluorine and nitrogen co-doped graphene oxide comprises adding triethylamine trihydrofluoride into the graphene oxide aqueous solution, reacting at the temperature of 120-180℃ for 6-24 hours and performing post-treatment to obtain fluorine-nitrogen co-doped graphene oxide hydrogel; and a styrene-acrylate emulsion containing fluorine nitrogen co-doped graphene oxide comprising styrene-acrylic emulsion, auxiliary agent and fluorine-nitrogen co-doped graphene oxide hydrogel, where the fluorine-nitrogen co-doped graphene oxide hydrogel prepared by adding triethylamine trihydrofluoride into the graphene oxide aqueous solution, reacting at the temperature of 120-180℃ for 6-24 hours and performing post-treatment.