▎ 摘　　要

NOVELTY - Paint comprises graphene slurry, aqueous acrylic resin, antifoaming agent and deionized water. The weight ratio of the graphene slurry, deionized water and aqueous acrylic resin is 3:3:1-3:3:5. The amount of the antifoaming agent is 0.5-2 wt.% of the sum of the total weight of graphene slurry, deionized water and aqueous acrylic resin. The graphene slurry is deionized water mixture with solid content of 2.5 wt.%. USE - The paint is useful for preparing high-efficiency particulate air filter (claimed). ADVANTAGE - The paint obtains high porosity and low pressure drop filter and ensures ultra-efficient air filtration effect. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the paint, comprising first mixing the graphene slurry and deionized water uniformly, adding the aqueous acrylic resin to reconcile, adding the antifoaming agent at room temperature, and stirring at 1900-2100 revolutions/minute for 1-2 hours; and (2) preparing high-efficiency particulate air filter using the paint, comprising adding the paint into spray gun using mixed gas spraying method, where the intake air pressure is 300-700 kPa, the intake air volume is 4-8 kg/m3, the ratio of air to paint is 5:1-10:1, the distance between the nozzle and the filter to be sprayed is 20-30 cm, nozzle translation speed does not exceed 10 cm/s, spraying a layer with thickness of 0.1-1 mm and drying at 80 plus minus 5 degrees C for 1-2 minutes, spraying for next layer for 2-5 spraying.