▎ 摘　　要

NOVELTY - Graphene modified epoxy-acrylic resin functional coating comprises 0.04-0.16 pts. wt. modified graphene, 13-15 pts. wt. waterborne epoxy resin, 27-29 pts. wt. waterborne acrylic resin, 40-44 pts. wt. functional filler, 1-1.2 pts. wt. graphite, 18-20 pts. wt. deionized water, 1.2-1.5 pts. wt. film-forming additive, 1-1.2 pts. wt. wetting agent, 0.7-0.9 pts. wt. defoaming agent, 0.8-1 pts. wt. curing agent, 0.4-0.6 pts. wt. thickening agent and 0.6-0.8 pts. wt. coupling agent. The modified graphene is obtained by performing sand grinding modification on an organic micromolecule modifier ethyl phenyl polyethylene glycol. The functional filler is composed of 27-28 pts. wt. mica, 8-10 pts. wt. talcum powder and 5-6 pts. wt. calcium carbonate. The wetting agent is a nonionic surfactant. The defoaming agent is an acrylic defoaming agent. The curing agent is a water-based epoxy curing agent. USE - Graphene modified epoxy-acrylic resin functional coating. ADVANTAGE - The waterborne epoxy-acrylic resin coating has corrosion resistance, wear resistance, adhesive force and hardness of the epoxy coating, excellent flexibility and weather resistance of the acrylic coating, high damping performance and cost-effective. DETAILED DESCRIPTION - Graphene modified epoxy-acrylic resin functional coating comprises 0.04-0.16 pts. wt. modified graphene, 13-15 pts. wt. waterborne epoxy resin, 27-29 pts. wt. waterborne acrylic resin, 40-44 pts. wt. functional filler, 1-1.2 pts. wt. graphite, 18-20 pts. wt. deionized water, 1.2-1.5 pts. wt. film-forming additive, 1-1.2 pts. wt. wetting agent, 0.7-0.9 pts. wt. defoaming agent, 0.8-1 pts. wt. curing agent, 0.4-0.6 pts. wt. thickening agent and 0.6-0.8 pts. wt. coupling agent. The modified graphene is obtained by performing sand grinding modification on an organic micromolecule modifier ethyl phenyl polyethylene glycol. The functional filler is composed of 27-28 pts. wt. mica, 8-10 pts. wt. talcum powder and 5-6 pts. wt. calcium carbonate. The wetting agent is a nonionic surfactant. The defoaming agent is an acrylic defoaming agent. The curing agent is a water-based epoxy curing agent. The coupling agent is a silane coupling agent. The thickening agent is a span cellulose thickening agent. An INDEPENDENT CLAIM is included for a method for preparing graphene-modified epoxy-acrylic resin functional coating, which involves: (1) weighing organic micromolecule modifier ethyl phenyl polyethylene glycol and absolute ethyl alcohol, and stirring and dissolving to obtain a modification solution. The graphene powder and deionized water are added, started the high-speed stirrer, and stirred for 5-6 minutes at the speed of 600-800 revolution per minute. The obtained slurry is dried to obtain the modified graphene. The mass ratio of the organic micromolecule modifier ethyl phenyl polyethylene glycol, absolute ethyl alcohol, graphene powder and deionized water is 0.9-1: 90-95: 30-32:1800-1900. (2) The water-based epoxy emulsion is weighed with the formula amount in a beaker, added the modified graphene with the formula amount, mechanically stirred for reaction for 1-2 hours at 300-400 revolution per minute. (3) The deionized water is taken with a formula amount, firstly added functional filler with a formula amount, stirred for 15-20 minutes at 500-600 revolution per minute. (4) The aqueous solution b is added into the aqueous emulsion a, stirred at a high speed of 1500-1600 revolution per minute.