▎ 摘　　要

NOVELTY - Method for preparing olefinic lubricating oil containing double-layer graphite involves (1) attaching organic molybdenum to the surface of graphene by dispersing graphene in a polyvinyl alcohol solution, adding organic molybdenum, performing ultrasonic treatment, drying, crushing and sieving, (2) mixing soybean oil and castor oil, heating, stirring and naturally cooling to room temperature to obtain a mixed oil and (3) mixing the mixed oil, sodium hydroxide and water, heating at 80-90 degrees C, stirring at 500 rpm for 2 hours, adding hydrochloric acid to carry out acidification treatment to obtain an acidified product, where the acid value is 190 mg sodium hydroxide/g, adding the graphene surface attached with organic molybdenum to the acidified product, stirring for 30 minutes at 500 rpm to obtain a composite acidified product, adding trimethylolpropane to the composite acidified product, heating at 82-85 degrees C, stirring for 1 hour, adding hydrogen peroxide, stirring and drying. USE - The method is useful for preparing olefinic lubricating oil containing double-layer graphite. ADVANTAGE - The method provides the lubricating oil with excellent lubricating performance and reduced corrosion resistance and forms relatively thick lubricating oil film that can better lubricate. DETAILED DESCRIPTION - Method for preparing olefinic lubricating oil containing double-layer graphite involves (1) attaching organic molybdenum to the surface of graphene by uniformly dispersing graphene in a polyvinyl alcohol solution, adding organic molybdenum, performing ultrasonic treatment for 20-25 minutes, drying until the constant weight, crushing and sieving, (2) mixing soybean oil and castor oil according to a mass ratio of 5:(1-2), heating at 130-140 degrees C, stirring at 1800 rpm for 2 hours and naturally cooling to room temperature to obtain a mixed oil and (3) mixing the mixed oil, sodium hydroxide and water, heating at 80-90 degrees C, stirring at 500 rpm for 2 hours, adding hydrochloric acid to carry out acidification treatment to obtain an acidified product, where the acid value is 190 mg sodium hydroxide/g, adding the graphene surface attached with organic molybdenum to the acidified product, stirring for 30 minutes at 500 rpm to obtain a composite acidified product, adding trimethylolpropane to the composite acidified product, heating at 82-85 degrees C, stirring for 1 hour, adding hydrogen peroxide, continuing stirring for 2-3 hours and drying.