▎ 摘　　要

NOVELTY - Preparing ferrous ferric oxide-phenylsilsesquioxane-graphene oxide magnetic nanocomposite (Fe3O4-POSS/GO) involves adding 0.1-5 wt.% acetic acid aqueous solution drop-wise to phenyl triethoxy silicon in ice bath conditions, stirring for 2-12 hours at -5-22 degrees C, filtering with suction and vacuum drying. The obtained phenyl silantriol and 3-(2,3-glycidoxy)propyltrimethoxysilane are heated to 40-100 degrees C and hydrolyzed for 1-6 hours in ethanol. The product is subjected to rotary evaporation to dryness, acetone is added, evaporated to dryness, and vacuum dried. The obtained phenylsilsesquioxane and Fe3O4 modified with gamma -aminopropyltriethoxysilane are heated in acetone to 40-100 degrees C and mechanically stirred for 2-24 hours. Magnetic separation and washing is performed with acetone three times, and vacuum dried to obtain Fe3O4-POSS. Fe3O4-POSS is mixed with gamma -aminopropyltriethoxysilane modified graphene oxide in acetone, and ultrasonically dispersed for 1-12 hours to obtain the product. USE - Method for preparing ferrous ferric oxide-phenylsilsesquioxane-graphene oxide magnetic nanocomposite for graphene-based nanocomposite anticorrosive coating (claimed). ADVANTAGE - The method improves the dispersion of graphene in the polymer matrix. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a graphene-based nanocomposite anticorrosive coating, which involves adding a small amount of acetone to the ferrous ferric oxide-phenylsilsesquioxane-graphene magnetic nanocomposite for ultrasonic dispersion for 1-2 hour, adding the obtained mixture to the epoxy resin, and mechanically stirring and dispersing for 20-30 minutes; and subjecting the obtained product to vacuum treatment for 15-30 minutes to remove acetone and to obtain anticorrosive coating.