▎ 摘　　要

NOVELTY - Polypropylene-graphene antibacterial composite material, which comprises a polypropylene and 20-2000 ppm graphene composite antibacterial agent. USE - Polypropylene-graphene antibacterial composite material. ADVANTAGE - The composite material has excellent antibacterial effect with respect to Escherichia coli and Gluconococcus aureus. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of the antibacterial composite material, which involves (S1) using graphene or graphene oxide as a raw material to prepare a graphene composite antibacterial agent and (S2) dispersing graphene composite antibacterial agent in a solvent and mixing with polypropylene, filtering, drying, melting and molding.