▎ 摘　　要

NOVELTY - A graphene modified powder coating comprises 50-80 pts. wt. epoxy resin, 10-20 pts. wt. phenolic curing agent, 3-5 pts. wt. leveling agent, 5-10 pts. wt. graphene, 10-20 pts. wt. pigment and 5-10 pts. wt. barium sulfate. USE - Graphene modified powder coating. ADVANTAGE - The powder coating makes use of hydrophobic characteristics of graphene, which effectively prevents water from penetrating through coating and corrosion of the metal substrate. The graphene effectively filters salt water due to nanostructure of graphene, so that highly corrosive salts cannot pass through surface of coating film, thereby improving corrosion resistance of coating film surface. The metal substrate has thick coating as barrier to protect it from external corrosion, since salt water and moisture are not easy to penetrate the surface of the coating film, thereby achieving excellent anticorrosion protection effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene modified powder coating, which involves mixing 30-60 pts. wt. epoxy resin, 10-20 pts. wt. phenolic curing agent, 3-5 pts. wt. leveling agent, 5-10 pts. wt. graphene, 10-20 pts. wt. pigment, 5-10 pts. wt. barium sulfate in premixing tank with premixer, melt-extruding mixed materials using an extruder, crushing, grinding and extruding material, cooling and crushing by tableting machine, sieving using an air classification mill and obtaining powder coating having particle diameter D50 of 50-70 microns.