▎ 摘　　要

NOVELTY - Preparing graphene oxide/acrylate-epoxy resin composite anticorrosive coating involves placing graphene and sodium nitrate in a reaction vessel in a 0 degrees C ice-water bath, adding concentrated sulfuric acid, stirring until the mixture is uniform, gradually adding potassium permanganate, and transferring the reaction vessel to a constant temperature water bath after the addition is complete. Deionized water is added dropwise to react, hydrogen peroxide aqueous solution is added until the reaction solution turns bright yellow, and centrifuged in a centrifuge tube until the pH of the supernatant is neutral. The lower layer of colloid is removed and vacuum dried to obtain graphene oxide. 2-((4-(2-(4-(Oxiran-2-ylmethoxy)phenyl)propan-2-yl)phenoxy)methyl)oxirane (Bisphenol A epoxy resin) and tetrabutylammonium bromideare taken in the reaction vessel, and acrylic acid is added drop-wise into the reaction vessel for 1 hour. USE - Method for preparing graphene oxide/acrylate-epoxy resin composite anticorrosive coating. ADVANTAGE - The epoxy groups on the surface of the graphene oxide are used as reactive points to greatly improve the anticorrosive performance of the graphene oxide/acrylate-epoxy resin composite anticorrosive coating. As the content of graphene oxide increases, the corrosion potential of the coating increases and the corrosion current density decreases, which makes the coating to exhibit excellent metal corrosion resistance. DETAILED DESCRIPTION - Preparing graphene oxide/acrylate-epoxy resin composite anticorrosive coating involves placing graphene and sodium nitrate in a reaction vessel in a 0 degrees C ice-water bath, adding concentrated sulfuric acid, stirring until the mixture is uniform, gradually adding potassium permanganate, and transferring the reaction vessel to a constant temperature water bath after the addition is complete. Deionized water is added dropwise to react, hydrogen peroxide aqueous solution is added until the reaction solution turns bright yellow, and centrifuged in a centrifuge tube until the pH of the supernatant is neutral. The lower layer of colloid is removed and vacuum dried to obtain graphene oxide. 2-((4-(2-(4-(Oxiran-2-ylmethoxy)phenyl)propan-2-yl)phenoxy)methyl)oxirane (Bisphenol A epoxy resin) and tetrabutylammonium bromideare taken in the reaction vessel, and acrylic acid is added drop-wise into the reaction vessel for 1 hour, and the heat preservation reaction is continued to obtain the acrylic acid modified epoxy resin intermediate. The hydroxyethyl methacrylate, acrylic acid modified epoxy resin intermediate, methyl methacrylate and butyl acrylate are placed in a stainless steel container, and an aqueous solution of emulsifier dissolved in alkylphenol polyoxyethylene ether-10 (OP-10) is added. The obtained product is placed in a high-speed disperser to disperse and stirred to obtain a core phase monomer pre-emulsion. Polyethylene glycol acrylate, methyl methacrylate, butyl acrylate and vinyl triisopropoxysilane is placed in a stainless steel container, the emulsifier aqueous solution in which OP-10 is dissolved is added, and placed in a high-speed disperser to disperse and stirred to obtain the shell phase monomer pre-emulsion. Deionized water and OP-10 are added to the reaction vessel, heated up and stirred until the emulsion is completely dissolved. One-fifth of the nuclear phase monomer pre-emulsion is added to the reaction vessel, and a quarter of the initiator aqueous solution is added to react with it. After a period of reaction, the remaining nuclear phase monomer pre-emulsion and the initiator aqueous solution are added drop-wise to the reaction vessel at a uniform speed to obtain a core phase emulsion. The shell phase monomer pre-emulsion is slowly dropped into the core phase emulsion, and the heat preservation reaction is continued after the dropping is completed. The temperature is lowered to remove the residual monomers, and ammonia is added to adjust the pH to 7-8, and the acrylic ester-epoxy resin core-shell emulsion is obtained by filtration. The acrylate-epoxy resin core-shell emulsion is taken in a disperser, and the graphene oxide is added slowly. The mixture is stirred for 1 hour to obtain graphene oxide/acrylate-epoxy resin composite anticorrosive coating.