▎ 摘　　要

NOVELTY - Preparing graphene oxide/polyvinyl chloride composite material with high strength and high toughness comprises (i) mixing and stirring the graphite powder and concentrated sulfuric acid to obtain mixture, adding potassium permanganate to the mixture for reaction, adding hydrogen peroxide into the reaction system, (ii) adding the graphene oxide into the organic solvent, (iii) adding the polyvinyl chloride and plasticizer into the organic solvent, (iv) mixing the first mixture and the second mixture uniformly to obtain the graphene oxide/polyvinyl chloride dispersion liquid containing plasticizer, namely the third mixture, (v) extracting the third mixture in the extracting solution, (vi) adding the graphene oxide/polyvinyl chloride composite particles containing plasticizer into ethanol solution containing stabilizing agent, and (vii) melting and mixing the graphene oxide/polyvinyl chloride composite particles containing plasticizer and stabilizer in a double-screw extruder. USE - The method is used for preparing graphene oxide/polyvinyl chloride composite material with high strength and high toughness. ADVANTAGE - The graphene oxide/polyvinyl chloride composite material with high strength and high toughness is prepared by adjusting the proportion of graphene oxide. DETAILED DESCRIPTION - Preparing graphene oxide/polyvinyl chloride composite material with high strength and high toughness comprises (i) mixing and stirring the graphite powder and concentrated sulfuric acid to obtain mixture, adding potassium permanganate to the mixture for reaction, finishing reaction, keeping the temperature of the reaction system, finishing the heat preservation, cooling, adding hydrogen peroxide into the reaction system to obtain the graphite oxide dispersion liquid, washing and centrifuging the graphite oxide dispersion liquid, ultrasonically peeling, freezing and drying to obtain the graphene oxide, (ii) adding the graphene oxide into the organic solvent, mixing uniformly to obtain the first mixture, (iii) adding the polyvinyl chloride and plasticizer into the organic solvent, mixing uniformly to obtain the second mixture, (iv) mixing the first mixture and the second mixture uniformly to obtain the graphene oxide/polyvinyl chloride dispersion liquid containing plasticizer, namely the third mixture, (v) extracting the third mixture in the extracting solution, soaking and washing, drying to obtain the graphene oxide/polyvinyl chloride composite particle containing plasticizer, (vi) adding the graphene oxide/polyvinyl chloride composite particles containing plasticizer into ethanol solution containing stabilizing agent, mixing uniformly, drying to obtain graphene oxide/polyvinyl chloride composite particles containing plasticizer and stabilizing agent, and (vii) melting and mixing the graphene oxide/polyvinyl chloride composite particles containing plasticizer and stabilizer in a double-screw extruder. An INDEPENDENT CLAIM is also included for: the graphene oxide/polyvinyl chloride composite material prepared by above method. DESCRIPTION OF DRAWING(S) - The drawing shows a preparation flow chart of the graphene oxide/polyvinyl chloride composite material (Drawing includes non-English language text).