▎ 摘　　要

NOVELTY - The preparation method of plastic involves weighing graphene oxide, dispersant, maleic anhydride, high-density polypropylene and initiator and then mixing, melting the mixture, adding metal boron compound flame retardant, silicon flame retardant, silane coupling agent, dispersant and anhydrous ethanol to the mixture and then ultrasonically processing, adding lubricant and antioxidant to the mixture and then leaving for 3 days and melting. USE - The method is useful for preparation of plastic. ADVANTAGE - The method enables simple, easy and safe preparation of plastic with excellent strength, toughness, heat resistance and compatibility in environmentally-friendly manner.