▎ 摘　　要

NOVELTY - High molecular graphene composite material with positive resistor temperature coefficient comprises a substrate and conductive filler, where the weight percentage of conductive material is 0.01-10%. USE - Used as high molecular graphene composite material with positive resistor temperature coefficient. ADVANTAGE - The composite material is not easy to be oxidized, has stable resistivity, and does not produce negative temperature coefficient effect. The method has simple preparation process, and has less impact on the properties of the substrates. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the high molecular graphene composite material with positive resistor temperature coefficient, comprising mixing each component uniformly, molding the mixture by injection molding or extruding, drying the molded material, and carrying out irradiation treatment to obtain the product.