▎ 摘　　要

NOVELTY - A polymer graft oxidized graphene comprises 1.5-2.5 wt.% graphene, hydrophilic modifier, and activator. The mass of graphene oxide is 1-2 times of the activator. The mass of hydrophilic modifier is one tenth to one fifth times. The activator material may be polymer of maleic anhydride grafted polypropylene, or maleic anhydride grafted polyethylene, or maleic anhydride grafted polystyrene. The hydrophilic modifier has a molecular weight of 300-30000. The activating agent is 1-(3-dimethylaminopropyl)-3-ethyl carbodiimide and/or N-hydroxysuccinimide. USE - Polymer graft oxidized graphene. ADVANTAGE - The polymer graft oxidized graphene has good flame retardant property, heat stability, crystallinity and thermal conductivity.