▎ 摘　　要

NOVELTY - Aqueous epoxy resin coating based on modified graphite comprises 38-45 pts. wt. of water-based epoxy resin emulsion, 3-4 pts. wt. of modified graphite, 25-29 pts. wt. of filler, and 1.5-1.9 pts. wt. of surfactant , 0.1-0.2 pts. wt. of polydimethylsiloxane, 0.2-0.3 pts. wt. of hydroxyethyl cellulose, and 20-30 pts. wt. of deionized water, the crystalline flake graphite potassium permanganate and sodium nitrate sequentially is added into the hydrothermal reaction kettle, then pour concentrated sulfuric acid covering the kettle cover the reaction kettle at 2 ° C degrees centigrade, refrigerated for 80-90 min, placed it in 80 ° C oven heating 2 hours, taking out the reaction kettle and cooling to room temperature. The product is poured into the beaker filled with deionized water to dilute. USE - Aqueous epoxy resin coating based on modified graphite. ADVANTAGE - The aqueous epoxy resin coating has high stability and low cost, is safe, environment-friendly and non-toxic, and has excellent corrosion resistance and heat dissipation performance. DETAILED DESCRIPTION - Aqueous epoxy resin coating based on modified graphite comprises 38-45 pts. wt. of water-based epoxy resin emulsion, 3-4 pts. wt. of modified graphite, 25-29 pts. wt. of filler, and 1.5-1.9 pts. wt. of surfactant , 0.1-0.2 pts. wt. of polydimethylsiloxane, 0.2-0.3 pts. wt. of hydroxyethyl cellulose, and 20-30 pts. wt. of deionized water, the crystalline flake graphite potassium permanganate and sodium nitrate sequentially is added into the hydrothermal reaction kettle, then pour concentrated sulfuric acid covering the kettle cover the reaction kettle at 2 ° C degrees centigrade, refrigerated for 80-90 min, placed it in 80 ° C oven heating 2 hours, taking out the reaction kettle and cooling to room temperature. The product is poured into the beaker filled with deionized water to dilute, then drip hydrogen peroxide standing for 24 hours to obtain the lower precipitate, using diluted hydrochloric acid solution for 3 times of acid washing and then washed for 5 times, obtaining concentrated solution of graphene oxide, centrifuged, freeze and dried for 24 hours to obtain the graphene oxide. The graphene oxide is placed into a flask, the deionized water is added to the flask, stirring turn on magnetic force stirring for 12 hours, continuously ultrasonic processed for 2 hours at 30℃, then drop hydroxyethyl diethylenetriamine after finishing, add continuously ultrasonically processing for 2 hours at 30℃, filtered and washed for 3-5 times by deionized water at last drying in 60 ℃ of vacuum drying box to obtain the modified graphite. An INDEPENDENT CLAIM is included for the method for preparing aqueous epoxy resin coating based on modified graphite, which involves: 1. dispersing the modified graphite in half volume of the deionized water and adding half of the surfactant to obtain the graphite water dispersion, the epoxy resin emulsion, graphite water dispersion, filler, half of the surfactant, polydimethylsiloxane, hydroxyethyl cellulose and the rest half of deionized water mixing; 2. ultrasonically dispersing for 2-3 hours to obtain the aqueous epoxy resin coating.