▎ 摘　　要

NOVELTY - The preparation method of modified graphene oxide material involves adding graphite powder to mixed acid solution and then agitating, adding potassium permanganate powder and then heating, cooling to room temperature, adding hydrogen peroxide solution and hydrochloric acid solution, washing using deionized water and then filtering, adding 50% ethanol aqueous solution and modifier and then heating, centrifugally separating the mixture and drying. The mixed acid solution comprises 55 %mass sulfuric acid solution and 45 %mass nitric acid solution. Hydrogen peroxide solution has concentration of 1.5 mol/l. Hydrochloric acid solution has concentration of 1 mol/l. The modifier is 2-methyl-2-propen-1-ol, acrylic acid or hydrogenated alkoxyaluminum. USE - The method is useful for preparation of modified graphene oxide material, which is useful for modification of poly(methyl methacrylate) material. ADVANTAGE - The method enables preparation of modified graphene oxide material with excellent compatibility. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for modified graphene oxide material prepared by the method.