▎ 摘　　要

NOVELTY - Graphene/polyolefin plastic composite packaging film comprises 0.02-2 wt.% graphene. USE - The plastic composite packaging film is useful in the food field (claimed). ADVANTAGE - The composite packaging film: has improved performance, and high mechanical property; and inhibits migration of plastic auxiliary agent to the food and food simulacrum to ensure consumer safety. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing composite packaging film comprising uniformly mixing graphene and polyolefin plastic, melting and extruding in an extruder to granulate to obtain mother particles, and then blow molding.