▎ 摘　　要

NOVELTY - A polyolefin graphene nanocomposite material is prepared by grinding polyolefin by solid phase power chemical reactor, adding graphene, continuously milling to obtain polyolefin graphene nanocomposite powder, using polyolefin graphene nanocomposite powder as master batch, determining graphene content, and extruding through injection molding or hot pressing. USE - Method for preparing polyolefin graphene nanocomposite material (claimed). ADVANTAGE - The materials has high yield strength and impact strength. The method has good graphene dispersion, low cost and environmental protection.