▎ 摘　　要

NOVELTY - Preparing highly conductive polyaniline-graphene composite material comprises (i) adding graphene oxide and methacryloxy ethyl trimethylammonium chloride into water, and dispersing to obtain ultrasonic dispersion; (ii) mixing dispersant, surfactant, methyl methacrylate and ultrasonic dispersion liquid to obtain reaction system, and drying to obtain methyl methacrylate- methacryloxy ethyl trimethylammonium chloride-graphene oxide copolymer powder; (iii) dissolving aniline monomer in hydrochloric acid solution, adding methyl methacrylate- methacryloxy ethyl trimethylammonium chloride-graphene oxide copolymer powder, mixing, adding initiator, and drying to obtain polyaniline-polymethyl methacrylate/methacryloxy ethyl trimethylammonium chloride-oxidized graphene composite product; (iv) dissolving composite product in organic solvent, and drying to obtain dried polyaniline-graphene oxide composite material; (v) adding dried product and reducing agent in water, heating, and drying. USE - The material is useful for electromagnetic interference shielding, rechargeable battery, photovoltaic cell, chemical sensor or gas separation membrane (claimed). ADVANTAGE - The material has improved electrical performance. This method solves the problems of polyaniline materials in terms of electrical properties. DETAILED DESCRIPTION - Preparing highly conductive polyaniline-graphene composite material comprises (i) adding graphene oxide and methacryloxy ethyl trimethylammonium chloride into water, uniformly and ultrasonically dispersing to obtain ultrasonic dispersion; (ii) mixing dispersant, surfactant, methyl methacrylate and ultrasonic dispersion liquid to obtain the reaction system, introducing the reaction system into the inert gas atmosphere, heating to the initiator temperature, adding initiator to carried out polymerization, filtering, washing, and drying to obtain methyl methacrylate- methacryloxy ethyl trimethylammonium chloride-graphene oxide copolymer powder; (iii) dissolving aniline monomer in hydrochloric acid solution, adding methyl methacrylate- methacryloxy ethyl trimethylammonium chloride-graphene oxide copolymer powder, uniformly mixing, continuously stirring, adding initiator to carried out polymerization, filtering, washing and drying to obtain polyaniline-polymethyl methacrylate/methacryloxy ethyl trimethylammonium chloride-oxidized graphene composite product; (iv) dissolving the composite product in organic solvent, continuously stirring, filtering, washing and drying to obtain dried polyaniline-graphene oxide composite material; (v) adding dried product and reducing agent in the water, heating and continuously stirring, filtering the product, washing and drying.