▎ 摘　　要

NOVELTY - Method for preparing graphene surface coated and doped with polyaniline involves using graphene, aniline, ammonium persulfate, sodium dodecylbenzene sulfonate, hydrochloric acid, N-methylpyrrolidone and deionized water as raw materials, preparing modified graphene by coating doped polyaniline on the surface of graphene by in-situ polymerization, involves (a) taking raw materials, (b) adding graphene and aniline to a mixed solution comprising deionized water and N-methylpyrrolidone and stirring, performing sonication, placing at room temperature to obtain dispersion (A), (c) adding ammonium persulfate, sodium dodecylbenzene sulfonate and hydrochloric acid to deionized water and stirring evenly to obtain dispersion (B), dripping dispersion (B) into dispersion (A), and (d) washing the reaction product with excess deionized water and centrifuging three times, and drying to obtain polyaniline-coated graphene. USE - The method is used for preparing graphene surface coated and doped with polyaniline which is used as a conductive filler in composite materials, coatings, inks, glues, and films. ADVANTAGE - The method is carried out in simple, rapid and environmentally-friendly manner. DETAILED DESCRIPTION - Method for preparing graphene surface coated and doped with polyaniline involves using graphene, aniline, ammonium persulfate, sodium dodecylbenzene sulfonate, hydrochloric acid, N-methylpyrrolidone and deionized water as raw materials, preparing modified graphene by coating doped polyaniline on the surface of graphene by in-situ polymerization, involves (a) taking raw materials, (b) adding graphene and aniline to a mixed solution comprising deionized water and N-methylpyrrolidone and stirring, performing sonication, placing at room temperature for 24 hours to obtain dispersion (A), (c) adding ammonium persulfate, sodium dodecylbenzene sulfonate, and hydrochloric acid to deionized water and stirring evenly to obtain dispersion (B), dripping dispersion (B) into dispersion (A) and reacting at 0 degrees C to complete the reaction, and (d) washing the reaction product with excess deionized water and centrifuging three times, and drying to constant weight at 40-60 degrees C to obtain polyaniline-coated graphene.