▎ 摘　　要

NOVELTY - Polyethylene-graphene composite material comprises 95-99 pts. wt. polyethylene and 0.1-5 pts. wt. graphene, where the carbon content of graphene is more than 99.5 wt%, the oxygen content is less than 0.5 wt.%, and the impurity content is less than 0.5 wt.%. USE - As polyethylene-graphene composite material. ADVANTAGE - The composite material has excellent dispersibility in polyethylene and improved mechanical properties, reduces the control links in process of production, and is prepared by simple process, conducive to system amplification and suitable for large-scale production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing polyethylene-graphene composite material, involving melt blending graphene and polyethylene, and performing extrusion molding process to obtain polyethylene-graphene composite material.