▎ 摘　　要

NOVELTY - Preparing graphene oxide composite solid lubricating material comprises (i) preparing graphene oxide solution; (ii) mixing the graphene oxide solution obtained in the step (i) with polyethylene glycol, and performing ultrasonic dispersion to obtain mixed solution, the mass ratio of the graphene oxide solution and polyethylene glycol is 1:0.2-1; and (iii) heating and drying the mixed solution gradient, and cooling. USE - The method is useful for preparing graphene oxide composite solid lubricating material. ADVANTAGE - The method: uses graphene oxide solution and polyethylene glycol as raw materials, and graphene oxide material, which has a large specific surface area, polymer, colloid, film and other characteristics, polyethylene glycol itself has excellent lubricity, adhesion; and uses graphite oxide alkene, which has good hydrophilicity, thus graphene oxide and polyethylene glycol can be combined to form an oxide film, which can reduce friction and wear to a large extent and improve the lubrication effect.