▎ 摘　　要

NOVELTY - Preparation of graphene composite polypropylene filter membrane comprises mixing graphene powder with polypropylene white slices, extrusion granulating to obtain graphene composite polypropylene masterbatch, adding additive and polypropylene white chip, melt extruding to obtain graphene composite polypropylene film, laminating, and hot pressing. USE - The method is for preparation of graphene composite polypropylene filter membrane. ADVANTAGE - The membrane has finer pore size and just right adsorption performance which can effectively block the impurities in the water and achieve good filtering effect compared with ordinary membrane.