▎ 摘　　要

NOVELTY - Graphene conductive composite material comprises graphene substrate, nano additive and modified active agent and the preparation method of graphene substrate comprises (i) mixing graphene oxide, vinyl triethoxysilane and absolute ethanol, where the mass ratio is 3-5:1-4:80-120, stirring uniformly, adding 60-70% deionized water of graphene oxide, adjusting pH to 3-4, ultrasonically dispersing, heating at 55-60 degrees C, filtering, washing filtered residue with acetone and drying to obtain dry matter, and (ii) mixing dry matter to ethanol, where the mass ratio is 1-3:80-100, adding 4-6 times of dry material and methacryloxypropyltrimethoxysilane mixing to obtain mixture, mixing mixture and platinum on carbon catalyst, where the mass ratio is 100-150:2-5, passing argon protection, stirring uniformly and cooling to room temperature. USE - Used as graphene conductive composite material. ADVANTAGE - The material has good fluidity and tensile strength. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the material comprising, ultrasonically dispersing graphene substrate, nano additive, modified active agent and deionized water, mixing aniline with hydrochloric acid, where the mass ratio of aniline with hydrochloric acid is 1-4:7-9 to obtain mixture, mixing ultrasonic dispersion and mixture, where the mass ratio of ultrasonic dispersion and mixture is 2-5:1-3, stirring, adding ultrasonic dispersion and 3-7% ammonium persulfate, allowing to stand, dialyzing and pouring dialysate into Teflon mold, drying and stripping.