▎ 摘　　要

NOVELTY - Graphene composite lubricant additive is obtained by adding nano-rhenium-molybdenum alloy powder and surfactant with defects on the surface to the ethanol dispersion of graphene oxide for uniform ultrasonic dispersion, heating to reduce the graphene oxide to graphene and coating with nano-rhenium-molybdenum alloy powder, and homogeneously dispersing and spray drying, preparing by uniformly dispersing with dithiocarbamate, bisphenol antioxidant and phosphate ester, the specific preparation process comprises e.g. adding graphene oxide to ethanol and disperse uniformly to obtain an ethanol dispersion of graphene oxide, spraying the hydrogen peroxide solution on the surface of the nano-rhenium-molybdenum alloy powder to slightly moisten the nano-rhenium-molybdenum alloy powder, and allowing to stand for treatment, obtaining defects on the surface of the nano-rhenium-molybdenum alloy powder to obtain nano-rhenium-molybdenum alloy powder with surface defects. USE - Used as graphene composite lubricant additive. ADVANTAGE - The nano-rhenium-molybdenum alloy-graphene: has good lubricity and wear resistance; spreads the graphene on the surface of metal parts under high load; protects the metal surface and repair the micro-defects of the metal parts; can form a protective layer with good anti-wear performance on the metal surface. DETAILED DESCRIPTION - Graphene composite lubricant additive is obtained by adding nano-rhenium-molybdenum alloy powder and surfactant with defects on the surface to the ethanol dispersion of graphene oxide for uniform ultrasonic dispersion, heating to reduce the graphene oxide to graphene and coating with nano-rhenium-molybdenum alloy powder, and homogeneously dispersing and spray drying, preparing by uniformly dispersing with dithiocarbamate, bisphenol antioxidant and phosphate ester, the specific preparation process comprises (1) adding graphene oxide to ethanol and disperse uniformly to obtain an ethanol dispersion of graphene oxide, (2) spraying the hydrogen peroxide solution on the surface of the nano-rhenium-molybdenum alloy powder to slightly moisten the nano-rhenium-molybdenum alloy powder, and allowing to stand for treatment, obtaining defects on the surface of the nano-rhenium-molybdenum alloy powder to obtain nano-rhenium-molybdenum alloy powder with surface defects, (3) adding nano-rhenium-molybdenum alloy powder with surface defects to the ethanol dispersion of graphene oxide, adding surfactant to ultrasonically disperse, dispersing graphene oxide on the surface of nano-rhenium-molybdenum alloy powder, and heating the dispersion to produce ethanol vapor while ultrasonically dispersing it, gradually reducing the graphene oxide to graphene and coating on the surface of the nano-rhenium-molybdenum alloy powder to obtain processed material, (4) adding the processed materials to a homogenizer for homogeneous dispersion, and spray-drying to obtain graphene-coated nano rhenium-molybdenum alloy powder and (5) uniformly dispersing the nano-rhenium-molybdenum alloy powder coated with graphene with dithiocarbamate, bisphenol antioxidant, and phosphate to obtain a graphene composite lubricant additive is the wet treatment of nano-rhenium-molybdenum alloy powder with hydrogen peroxide solution.