▎ 摘　　要

NOVELTY - Preparing graphene oxide coated polyglycidyl methacrylate microsphere composite anticorrosive coating additive comprises e.g. (i) adding polyvinylpyrrolidone to absolute ethanol, adding glycidyl methacrylate, passing inert gas into reaction system and heating, (ii) adding azobisisobutyronitrile dissolved in absolute ethanol, (iii) separating solid solution product of (ii) to obtain polyglycidyl methacrylate microspheres, (iv) ultrasonically dispersing polyglycidyl methacrylate microspheres obtained in (iii) to obtain polyglycidyl methacrylate microsphere aqueous dispersion, ultrasonically dispersing graphene oxide to obtain graphene oxide aqueous dispersion, (v) adding cetyl trimethylammonium bromide to polyglycidyl methacrylate microsphere aqueous dispersion obtained in (iv) and ultrasonication, (vi) adding graphene oxide aqueous dispersion obtained in (iv) to system of (v) under ultrasonication and (vii) performing solid-liquid separation of product in (vi), washing and drying. USE - The method is useful for preparing graphene oxide coated polyglycidyl methacrylate microsphere composite anticorrosive coating additive. DETAILED DESCRIPTION - Preparing graphene oxide coated polyglycidyl methacrylate microsphere composite anticorrosive coating additive comprises (i) adding polyvinylpyrrolidone to absolute ethanol to dissolving, then adding glycidyl methacrylate and passing the inert gas into the reaction system and then heating to 65-75 degrees C, (ii) adding azobisisobutyronitrile dissolved in absolute ethanol to reaction system after the temperature in step (i) is stabilized and then reacting for 12-24 hours, where the amount of azobisisobutyronitrile is 2.5-5 wt. amount of glycidyl methacrylate, (iii) separating solid solution of product of step (ii), then washing the solid portion and drying to obtain polyglycidyl methacrylate microspheres, (iv) ultrasonically dispersing polyglycidyl methacrylate microspheres obtained in (iii) by water for 0.5-1 hour to obtain 1-2 mg/ml polyglycidyl methacrylate microsphere aqueous dispersion; ultrasonically dispersing the graphene oxide for 1-2 hours to obtain 1-2 mg/ml graphene oxide aqueous dispersion, (v) adding cetyl trimethylammonium bromide to polyglycidyl methacrylate microsphere aqueous dispersion obtained in step (iv) and then continuously ultrasonication for dissolving, where the addition amount of cetyl trimethylammonium bromide is 1-3 times mass of polyglycidyl methacrylate microsphere, (vi) adding graphene oxide aqueous dispersion obtained in step (iv) to system of step (v) under ultrasonication and then continuously ultrasonication to obtain mixture, and (vii) performing solid-liquid separation of product obtained in step (vi), then partial washing and drying of the solid to obtain graphene oxide coated polyglycidyl methacrylate microsphere. An INDEPENDENT CLAIM is also included for graphene oxide coated polyglycidyl methacrylate microsphere composite anticorrosive coating additive is obtained by above method.