▎ 摘　　要

NOVELTY - Preparing composite material involves using polymer and graphene oxide as raw material, adding chemical reducing agent by conventional polymer processing method for reducing graphene oxide to obtain composite material, where polymer comprises thermoplastic processing of macromolecule material, graphene oxide is layered material having oxygen-containing functional group on surface and layered material is a single layer, double-layer or multilayer. The reducing agent is a substance which partially removes the oxygen-containing functional group from graphene oxide. USE - Method for preparing composite material (claimed). ADVANTAGE - The method enables to prepare composite material that is convenient for large-scale production, avoids the use of post-treatment and complex solvent, in simple and cost effective manner. DETAILED DESCRIPTION - Preparing composite material involves using polymer and graphene oxide as raw material, adding chemical reducing agent by conventional polymer processing method for reducing graphene oxide to obtain composite material, where polymer comprises thermoplastic processing of macromolecule material, graphene oxide is layered material having oxygen-containing functional group on surface and layered material is a single layer, double-layer or multilayer. The reducing agent is a substance which partially removes the oxygen-containing functional group from graphene oxide. The reducing agent is added in 50-100 wt.% of graphene oxide.