▎ 摘　　要

NOVELTY - The method comprises preparing a graphene oxide by mixing 50 parts by weight (pbw) of concentrated sulfuric acid and mixture of 5 pbw of graphite powder and 5 pbw of sodium nitrate and then stirring at a controlling temperature of less than or equal to 20 degrees C, slowly adding 18 pbw of potassium permanganate with the mixture at a temperature of 30-50 degrees C, adding 280 pbw of deionized water with the mixture, heating the mixture at a temperature of 100 degrees C for 4 hours, and adding 20 pbw of peroxide solution with the heated mixture. USE - The method is useful for preparing modified graphene oxide leather grease. ADVANTAGE - The method is capable of economically preparing the modified graphene oxide leather grease with excellent softening, reinforcing and toughening effect. DETAILED DESCRIPTION - The method comprises preparing a graphene oxide by mixing 50 parts by weight (pbw) of concentrated sulfuric acid and mixture of 5 pbw of graphite powder and 5 pbw of sodium nitrate and then stirring at a controlling temperature of less than or equal to 20 degrees C, slowly adding 18 pbw of potassium permanganate with the mixture at a temperature of 30-50 degrees C, adding 280 pbw of deionized water with the mixture, heating the mixture at a temperature of 100 degrees C for 4 hours, adding 20 pbw of peroxide solution with the heated mixture, allowing the mixture to react at a temperature of 30-70 degrees C after using the deionized water, regulating a pH value of the mixture to 7 using a pH regulator, dispersing the mixture for 30 minutes using an ultrasonic wave for obtaining oxidized graphite alkene aqueous solution, adding 5 pbw of octadecyl dimethyl-2-hydroxyethyl ammonium bromide and 10 pbw of absolute ethyl alcohol with 50 pbw of the graphene oxide dispersion liquid to obtain a mixture, stirring the mixture at a room temperature for 2 hours, dispersing the stirred mixture for 5 hours using an ultrasonic wave to obtain an oxidized graphite alkene and octadecyl dimethyl-2-bromide direct intercalation composite, adding 25 pbw of oleic acid, 1200 pbw of polyethylene glycol monomethyl ether and 0.6 pbw of toluene sulfonic acid to obtain a mixture, pouring water into a reactor, stirring and heating the mixture at 120 degrees C, insulating the mixture for 3.5 hours, cooling the mixture to a room temperature to obtain oil acid polyethylene glycol single methyl ether ester, adding 5 pbw of oxidized graphite alkene intercalation compound, 14 pbw of oleic acid polyethylene glycol single methyl ether ester, 6-11 pbw of natural grease, 13 pbw of sulfonated oil, 2-4 pbw of isopropyl alcohol and deionized water to obtain a mixture, uniformly stirring the mixture, adjusting a pH value of the mixture to 7, and dispersing the mixture for 5 hours using an ultrasonic wave to obtain a modified graphite oxide alkene leather adding ester. The graphite powder has a granularity of less than 30 microns, and a carbon mass percentage of 99.9%. The modified graphite oxide alkene leather adding ester comprises rapeseed oil, soybean oil or peanut oil. The pH regulator is 30 mass% of sodium hydroxide solution.