▎ 摘　　要

NOVELTY - Graphene-anhydride curing agent modified waterborne epoxy resin material comprises functionalized graphene, methacrylic acid, methyl acrylate, hydroxypropyl acrylate, maleic anhydride, initiator, epoxy resin in ratio of 0.5-5:1-2:8-15:1-3:35-45:0.3-0.5:100. USE - Graphene-anhydride curing agent modified waterborne epoxy resin material. ADVANTAGE - The graphene-anhydride curing agent modified waterborne epoxy resin material improves the compatibility of graphene and epoxy resin and enhances the impact strength and tensile strength of epoxy resin. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene-acid anhydride curing agent modified waterborne epoxy resin material, which involves: (A) adding graphene oxide to distilled water solvent, and ultrasonically dispersing uniformly, transferring solution into hydrothermal reaction kettle, heating to 170-190 degrees C, heat preservation for 6-10 hours, freeze-drying to remove solvent; (B) placing obtained graphene aerogel in potassium hydroxide solution, dispersing uniformly by ultrasonic and then static leaving for 12-18 hours, vacuum drying to remove solvent, and placing solid mixed product in atmosphere furnace, raising temperature to 700-800 degrees C in argon atmosphere, heat preservation for 1-2 hours, washing calcined product with dilute hydrochloric acid and distilled water until neutral, preparing three-dimensional porous graphene, adding three-dimensional porous graphene to distilled water solvent, and after ultrasonic dispersion is uniform; (C) adding dilute hydrochloric acid to adjust pH of the solution to 2-3, adding ferrous chloride at 30-40 degrees C, adding hydrogen peroxide aqueous solution dropwise using micro sampling device, and reacting for 1-2 hours, performing centrifugal separation, washing and drying to prepare hydroxyl-rich graphene; (D) adding hydroxyl-rich graphene to toluene solvent, after ultrasonic dispersion is uniform, adding vinyl silane coupling agent, reacting at 100-120 degrees C for 5-10 hours, centrifuging, washing and drying to prepare high vinyl content of functionalized graphene; (E) adding methacrylic acid, methyl acrylate, hydroxypropyl acrylate and maleic anhydride to xylene solvent, stirring uniformly and configuring into acrylate mixed solution, configuring xylene solution of functionalized graphene, dispersing uniformly by ultrasonic, adding 2/3 volume of the acrylate mixed solution, and adding initiator dibenzoyl peroxide in nitrogen atmosphere, heating to 80-90 degrees C, reacting for 30-60 minutes, adding remaining 1/3 volume of acrylate mixed solution dropwise using micro-injection device, reacting for 4-6 hours to obtain graphene grafted succinic anhydride-waterborne acrylate resin, adding epoxy resin and graphene grafted succinic anhydride-waterborne acrylate resin to distilled water solvent, pouring material into film forming mold; and (F) performing thermal curing to form film to prepare graphene-anhydride curing agent modified waterborne epoxy resin material.