▎ 摘　　要

NOVELTY - High thermal conductivity lubricating oil comprises 0.5-11.5 wt.% heat-conducting wear-resistant auxiliary agent, 0.5-3.5 wt.% dispersants, 3-15 wt.% auxiliary components and base oil (balance amount). The preparation method of the heat-conducting wear-resistant auxiliary agent comprises (1) uniformly stirring isopropanol, phenyltrimethoxysilane, deionized water and sheet sodium hydroxide, and rotary-evaporating and vacuum-drying to obtain first intermediate, (2) uniformly mixing the first intermediate obtained in the step (1) and anhydrous tetrahydrofuran, adding benzyltrimethylammonium hydroxide methanol solution under nitrogen atmosphere and stirring state, and rotary-evaporating under reduced pressure and vacuum-dried to obtain second intermediate, and (3) adding graphene oxide into dimethylformamide (DMF), stirring and refluxing the reaction for 8 hours, washing 3-5 times, and vacuum drying to obtain thermal conductivity and wear-resistant auxiliary agent. USE - Used as high thermal conductivity lubricating oil. ADVANTAGE - The lubricating oil: utilizes amino-functionalized double-layer cage silsesquioxane to modify graphene oxide; can be uniformly dispersed in lubricating oil; has excellent dispersion stability; improves the thermal conductivity of lubricating oil; prolongs the service life of the lubricating oil; improves the quality; and improves the wear resistance of the lubricating oil due to the wear resistance of the cage silsesquioxane. DETAILED DESCRIPTION - High thermal conductivity lubricating oil comprises 0.5-11.5 wt.% heat-conducting wear-resistant auxiliary agent, 0.5-3.5 wt.% dispersants, 3-15 wt.% auxiliary components and base oil (balance amount). The preparation method of the heat-conducting wear-resistant auxiliary agent comprises (1) uniformly stirring isopropanol, phenyltrimethoxysilane, deionized water and sheet sodium hydroxide, heating the reaction system to 72degrees Celsius under nitrogen atmosphere, stirring the reaction at room temperature for 18 hours after refluxing for 6 hours, and rotary-evaporating and vacuum-drying to obtain first intermediate, (2) uniformly mixing the first intermediate obtained in the step (1) and anhydrous tetrahydrofuran, adding benzyltrimethylammonium hydroxide methanol solution under nitrogen atmosphere and stirring state, heating the temperature of the reaction system to 43degrees Celsius, stirring under reduced pressure for 30 minutes, adding 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane, raising the temperature of the reaction system to 83degrees Celsius, stirring the reaction for 3-5 hours, and rotary-evaporating under reduced pressure and vacuum-dried to obtain second intermediate, and (3) adding graphene oxide into dimethylformamide (DMF), ultrasonically dispersing at 32degrees Celsius for 1.2 hours, adding the second intermediate obtained in the step (2), continuously ultrasonically dispersing for 1 hours, adding mixture of ethylene dichloride (EDC) and N-hydroxysuccinimide (NHS), heating the temperature of the reaction system to 67degrees Celsius, stirring and refluxing the reaction for 8 hours, precipitating with ethanol, filtering, washing 3-5 times, and vacuum drying to obtain thermal conductivity and wear-resistant auxiliary agent. An INDEPENDENT CLAIM is also included for producing the lubricating oil, comprising (1) adding the heat-conducting wear-resistant auxiliary agent to the base oil, stirring for 30-80 minutes at room temperature and 300-500 revolutions/minute, adding dispersant and auxiliary components, and stirring at room temperature 800-1000 revolutions/minute for 50-80 minutes to obtain mixed solution, and (2) homogenizing the mixed solution obtained in the step (1) to obtain high thermal conductivity lubricating oil.