▎ 摘　　要

NOVELTY - Graphene hot-melt anticorrosive coating preparation involves mixing 1 kg vinyl acetate monomer, 1 kg methanol, 1 kg ethanol, 1 kg tert.-butanol and 10 g azobisisobutyronitrile as initiator with stirring uniformly. The obtained mixture is uniformly mixed in a reaction vessel under nitrogen gas with stirring at 100 revolutions per minute to deoxidize raw material. The ethylene monomer is introduced to stabilize the reactor pressure at 45 bars, and heated at 72 degrees C for 4 hours for carrying out for polymerization. The temperature is lowered to obtain crude product, where the residual monomer is removed to obtain ethylene-vinyl alcohol copolymer precursor. 150 g graphene oxide and 10 g 3-aminopropyltrimethoxysilane are ultrasonically dispersed at 75 degrees C in water bath with stirring for 5 hours to obtain coupling agent. USE - Method for preparing graphene hot-melt anticorrosive coating. ADVANTAGE - The method prepares the graphene hot-melt anticorrosive coating in a simple, cost-effective and eco-friendly manner with greatly improved dispersity, and uniform and stable dispersion in resin to form efficient graphene hot-melt anti-corrosion coating. DETAILED DESCRIPTION - The obtained silane coupling agent-modified graphene oxide and ethylene-vinyl alcohol copolymer precursor are charged in a mass ratio of 1:7, heated at 80 degrees C for 2 hours under constant stirring to complete silane and ethylene-ethylene. The binding reaction of the alcohol copolymer precursor is cut and granulated after hot extrusion to obtain composite particles of graphene oxide and ethylene-vinyl alcohol copolymer. The particles are refined into a dry powder by an ultrafine pulverizing unit.