▎ 摘　　要

NOVELTY - Preparing molded portions based on reduced graphene oxide and copper composite materials involves adding graphene oxide powder and copper powder to anhydrous ethanol to form mixed solution. The mixed solution is placed into ball mill tank. The mechanical ball milling is performed in vacuum state to obtain mixed solution. The mixed solution is dried under vacuum environment to obtain mixed powder. The mixed powder is subjected to reduction treatment in hydrogen atmosphere to obtain reduced mixed powder so that graphene oxide is reduced to reduced graphene oxide. The reduced mixed powder is loaded into mold, and pressure-loaded the mold to prepare composite powder compact. The powder compact is vacuum sintered and then cooled to room temperature to obtain preliminary fired molded portion. USE - Method for preparing molded portions based on reduced graphene oxide and copper composite materials. ADVANTAGE - The method enables to prepare molded portions based on reduced graphene oxide and copper composite materials that has high strength, plasticity, conductivity, production efficiency, low production cost, excellent comprehensive properties and realizes large-scale industrial production. DETAILED DESCRIPTION - Preparing molded portions based on reduced graphene oxide and copper composite materials involves adding graphene oxide powder and copper powder to anhydrous ethanol to form mixed solution. The mixed solution is placed into ball mill tank. The mechanical ball milling is performed in vacuum state to obtain mixed solution. The mixed solution is dried under vacuum environment to obtain mixed powder. The mixed powder is subjected to reduction treatment in hydrogen atmosphere to obtain reduced mixed powder so that graphene oxide is reduced to reduced graphene oxide. The reduced mixed powder is loaded into mold, and pressure-loaded the mold to prepare composite powder compact. The powder compact is vacuum sintered and then cooled to room temperature to obtain preliminary fired molded portion. The tablet press is used to load a pressure of 700-1000 megapascal for pressure loading of the first fired molded portion. The pre-fired molded portion is vacuum sintered and released the molded portion to obtain molded portion.