▎ 摘　　要

NOVELTY - Preparation of graphene colloid, involves adding powdery graphite material, stabilizer (A), stabilizer (B), dispersant (C) and polymer colloid, ultrasonically dispersing in solvent and fully mixing to obtain stable graphene colloid. The concentration of powdery graphite material, stabilizer (A), stabilizer (B), and dispersant (C) is 0.1-15 mg/mL, 0.1-525 mg/mL, 0.1-825 mg/mL, 0.1-525 mg/mL. The polymer colloid is selected from polystyrene emulsion, polymethylmethacrylate emulsion, polybutyl acrylate emulsion, silicone emulsion or polybutadiene rubber emulsion. USE - Method for preparing graphene colloid such as water-soluble colloid and oil-soluble colloid for use as graphene electrode, graphene composite, graphene coating and graphene fiber composite material. ADVANTAGE - The method enables simple preparation of graphene colloid with high stability. DETAILED DESCRIPTION - Method for preparing graphene colloid, involves adding powdery graphite material, stabilizer (A), stabilizer (B), dispersant (C) and polymer colloid, ultrasonically dispersing in solvent and fully mixing to obtain stable graphene colloid. The concentration of powdery graphite material, stabilizer (A), stabilizer (B), and dispersant (C) is 0.1-15 mg/mL, 0.1-525 mg/mL, 0.1-825 mg/mL, 0.1-525 mg/mL. The stabilizer (A) is selected from graphene oxide nanoparticles, carbon quantum dots, acidified nanotubes or graphene quantum dots. The stabilizer (B) is selected from 3-(3-(amidopropyl) dimethylamino) propanesulfonic acid, didecyldimethylammonium bromide, cetyldimethylbenzylammonium bromide, N-hexadecyl- beta -D-maltoside, octadecanol ethylene oxide polyether, cellulose nanocrystals, sodium dodecylbenzenesulfonate, cetyltrimethylammonium bromide, octamethyltrimethylammonium bromide, polyvinylpyrrolidone, sodium polystyrene sulfonate, polyethylene oxide-propylene oxide-ethylene oxide, Tween-80 (RTM: polyethylene glycol-20 sorbitan monooleate), Triton X-100 (RTM: octylphenol ethoxylate), sodium cholate, sodium deoxycholate, sodium bovine sodium deoxycholate, benzylamine, sulfonic acid pyrene, amino pyrene, 9-anthracenecarboxylic acid, 1-pyrene sulfonic acid sodium salt, 6,8-dihydroxy-pyrene disulfonic acid sodium salt, 8-hydroxy-pyrene-1,3,6-trisulfonic acid sodium salt, pyrene-tetrasulfonic acid sodium salt, dimethyl-2,7-N-diazepine, hexahydrobenzene tetracarboxylic acid potassium salt, ethyl stearate ethylhydroxyethylmethylsulfate, ethyl stearate ethylhydroxyethyl methyl sulfate, Span 20 (RTM: sorbitan monolaurate), Span 40 (RTM: sorbitan monopalmitate), Span 60 (RTM: sorbitan monostearate) and Span 80 (RTM: sorbitan monooleate) and/or alkyl tertiary amine salts. The dispersant (C) is selected from polyvinylpyrrolidone, polytetrafluoroethylene, polyvinylidene fluoride, polyacrylic acid, polyisobutylene, polyvinyl chloride, polyethylene, polypropylene, polyacrylamide, polyaniline colloid, polypyrrole colloids, poly 3,4-ethoxythiophene, sodium polystyrene sulfonate, polymethacrylic acid, polyacrylonitrile, polyacetate, polyvinyl alcohol, polybutadiene, polychloroprene, polychlorotrifluoroethylene, nylon-66, nylon-6, phenolic resin, melamine formaldehyde resin, polyoxymethylene, polyethylene glycol, chlorinated polyether, polyethylene terephthalate, polycarbonate, cellulose, polyurethane, polysulfide rubber, silicone rubber, polyacrylonitrile-polybutadiene-polystyrene copolymer and polystyrene-polybutadiene-polystyrene copolymer. The polymer colloid is selected from polystyrene emulsion, polymethylmethacrylate emulsion, polybutyl acrylate emulsion, silicone emulsion or polybutadiene rubber emulsion. The particle size of polymer colloid is 1-1000 nm.