▎ 摘　　要

NOVELTY - A graphene-reinforced silicone/modified polystyrene composite positive temperature coefficient core material comprises 24-32 wt.% functional electroconductive filler, 18-29 wt.% functional thermal conductive filler, 4-7 wt.% additive, 10-16 wt.% high-molecular weight polyethylene and remainder of modified polystyrene. USE - Graphene-reinforced silicone/modified polystyrene composite positive temperature coefficient core material (claimed). ADVANTAGE - The graphene-reinforced silicone/modified polystyrene composite positive temperature coefficient core material has excellent electrical property, strength and high-temperature performance.