▎ 摘　　要

NOVELTY - A composite material comprises polyolefin and graphene-grafted super activated carbon. USE - Composite material. ADVANTAGE - The composite material has improved antioxidant effect, and can be easily and rapidly prepared. The initial thermal decomposition temperature of composite material can be changed by adjusting graphene content of graphene-grafted super activated carbon. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of composite material, which involves heat-treating graphene-grafted super activated carbon at 75-85 degrees C for 10-15 hours, mixing polyolefin and heat-treated graphene-grafted super activated carbon in internal mixer and stirring at 160-190 degrees C and 30-120 rpm for 5-20 minutes.