▎ 摘　　要

NOVELTY - Preparing an anti-corrosion coating comprises component A and component B in mass ratio of 6: 1 is prepared by mixing, where the component A comprises 50-80 pts. wt. modified epoxy resin emulsion, 15-30 pts. wt. modified graphene, 2-5 pts. wt. dispersant, 1-3 pts. wt. leveling agent, 1-3 pts. wt. defoamer, 10-20 pts. wt. film-forming auxiliary agent, 20-30 pts. wt. deionized water, the component A is prepared by stirring the raw materials for 1-2 hours under the condition that the rotating speed of 1500-2000 revolutions/minute to obtain component A, the component B is ethylenediamine, benzoyl peroxide and ethylene glycol mixed in a mass ratio of 1:1:10. USE - The method is useful for preparing an anti-corrosion coating, which is useful for offshore oil pipelines. ADVANTAGE - The method ensures that the sulfur atom is easily combined with the sulfhydryl group through hydrogen bonds. The anti-corrosion coating has side chain with capsaicin structure, prevents marine organisms from being adsorbed on the surface of the coating, and avoids influence of marine organisms and microorganisms on corrosion resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation of anti-corrosion coating for offshore oil pipelines, comprising (i) adding aluminum trichloride and carbon tetrachloride into the reaction kettle, stirring and adding toluene, and reacting to obtain intermediate 1, mixing intermediate 1 and deionized water, and refluxing to obtain intermediate 2, adding intermediate 2, hydroxylamine hydrochloride, ethanol and deionized water into reaction kettle, stirring, adding sodium hydroxide, reacting, heating, adding hydrochloric acid solution, and thermally insulating to obtain intermediate 3, (ii) adding intermediate 3, ethanol and concentrated hydrochloric acid into reaction kettle, stirring and adding zinc powder, reacting, cooling, adding aqueous ammonia and sodium hydroxide solution, and continuously stirring to obtain intermediate 4, adding intermediate 4, nitrogen-bromosuccinimide, benzoyl peroxide and carbon tetrachloride in to the reaction kettle, and reacting to obtain intermediate 5, mixing and dropping intermediate 5, concentrated hydrochloric acid, acetone and copper sulfate with sodium nitrite solution under ice-water bath conditions, stirring evenly, adding ethyl acrylate, heating, adding cuprous oxide to react to obtain intermediate 6, and (iii) adding intermediate 6, potassium carbonate, tetrahydrofuran and tetraethylammonium bromide into the reaction kettle, and performing reflux reaction to obtain intermediate 7, and carrying out epoxy resin E-44 and intermediate 7 to obtain intermediate 8, dissolving hydroxylamine hydrochloride in deionized water under ice-water bath conditions, stirring, adding potassium hydroxide solution, adding vanillin, carrying out the reaction to obtain intermediate 9, dissolving in ethanol, adding Raney nickel, and introducing hydrogen gas into the solution to obtain intermediate 10, (iv) reacting intermediate 10, acryloyl chloride, potassium carbonate and tetrahydrofuran to obtain the intermediate 11, dissolving intermediate 8 in ethylene glycol butyl ether, stirring and adding with methacrylic acid, styrene, intermediate 11 and dibenzoyl peroxide, heating, adding deionized water and adjusting the reaction solution to 7 to obtain modified epoxy resin emulsion.