▎ 摘　　要

NOVELTY - The method involves mixing (S1) graphene powder, deionized water and surfactant to obtain mixed solution A. The mixed solution A is ultrasonically processed (S2). The mixed solution A is dropped on a silicon dioxide substrate. An annealing treatment is performed (S3) under high purity argon gas after drying. A graphene/silicon dioxide sample is quickly cooled to about 30 degrees centigrade. A graphene coating is obtained (S4) with excellent macroscopic lubricating performance. A granularity of the graphene powder is 0.5 to 20 microns, preferably 3 microns. A surfactant is non-surfactant, preferably isooctyl phenyl polyoxyethylene ether. A mass concentration of the isooctyl phenyl polyoxyethylene ether in the obtained mixed solution A is 0.024 % to 0.25 %, preferably 0.1 %. USE - Method for improving macroscopic lubricating performance of graphene based on annealing treatment used for multi-scale lubricant and lubricating additive. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating a method for improving macroscopic lubricating performance of graphene based on annealing treatment. (Drawing includes non-English language text) S1Step for mixing graphene powder, deionized water and surfactant to obtain mixed solution A S2Step for ultrasonically processing mixed solution A S3Step for dropping mixed solution A on silicon dioxide substrate and performig annealing treatment S4Step for quickly cooling graphene/silicon dioxide sample and obtaining graphene coating with excellent macroscopic lubricating performance