▎ 摘　　要

NOVELTY - Preparation of graphene composite material involves (a) adjusting the pH value of graphene oxide aqueous solution to 8-13, and dispersing, (b) adjusting the pH value of the obtained graphene oxide solution to 2-7, (c) adding coupling agent solution into the obtained solution, and reacting to obtain reaction solution of graphene oxide-coupling agent material, and (d) performing reduction reaction by adding reducing agent into the obtained material. USE - Preparation of graphene composite material used as tire rubber reinforcing filler for tire rubber composition (all claimed) for aircraft tires, high-grade car tires and truck tires. ADVANTAGE - The graphene composite material is easy to uniformly disperse in rubber, and has strong interface effect with the rubber. The prepared vulcanized rubber has excellent mechanical property, excellent wear resistance, low compression heat generation, strong aging resistance, and static resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for tire rubber composition, which comprises tire rubber matrix and graphene composite material.