▎ 摘　　要

NOVELTY - Modified graphene lubricating oil comprises 10-20 parts mass stearic acid, 10-15 parts mass oleic acid, 50-70 parts mass acetone, 10-30 parts mass graphene powder, 5-8 parts mass concentrated sulfuric acid, 5-9 parts mass molybdenum powder microspheres, 4-8 parts mass chromium powder microspheres, 5-10 parts mass ferric oxide microspheres, 10-15 parts mass phenylalanine, 9-18 parts mass di-n-butyl phosphite, 8-16 parts mass lithium fluoroborate, 10-30 parts mass base white oil, 4-8 parts mass montmorillonite, 5-10 parts mass N,N-dimethylformamide, 2-5 parts mass lanolin magnesium soap, 5-8 parts mass stearic acid monoglyceride, 8-12 parts mass polyethylene sodium, 10-20 parts mass silane coupling agent and 100-120 parts mass base oil. USE - As modified graphene lubricating oil. ADVANTAGE - The modified graphene lubricating oil is suitable to disperse in commercially available lubricating oil, improves extreme pressure lubrication performance, and has characteristics of cooling, drying and shock absorption. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the modified graphene lubricating oil, involving (i) adding stearic acid and oleic acid to acetone, magnetically stirring for 30 minutes, adding graphene powder, continuously stirring for 1 hour, dripping concentrated sulfuric acid to obtain a black slurry, putting the black slurry into a round bottom flask, connecting to the condensate reflux device, maintaining in a constant temperature water bath at 50 degrees C for 3 hours to obtain a slurry and a filter cake, using absolute ethanol to wash 3 times, drying the filter cake in a vacuum oven at 80 degrees C for 8 hours, and crushing the dried filter cake for 30 seconds to obtain modified graphene powder, (ii) adding molybdenum powder microspheres, chromium powder microspheres, ferric oxide microspheres, phenylpropyltriazide, di-n-butyl phosphite and lithium fluoroborate to base white oil, dispersing at room temperature for 2 hours, closing the frosted opening for 24 hours to prepare a mixed liquid, adding montmorillonite, N,N-dimethylformamide, lanolin magnesium soap, stearic acid monoglyceride and polyethylene sodium to the mixture, uniformly mixing, closing the opening for 48 hours, maintaining statically for 48 hours to obtain a additive without graphene powder, adding silane coupling agent and modified graphene powder to the additive without graphene powder and stirring for 3 hours to obtain a graphene lubricant additive, and (iii) adding graphene lubricant additive to base oil, dispersing for 1 hour to obtain a lubricating oil modified graphene lubricating oil, placing in a dark place at room temperature for 90 days to obtain the product.