▎ 摘　　要

NOVELTY - Preparation of anti-glare nano-antimicrobial composite functional coating involves dissolving graphene oxide, aluminum salt, ammonium bicarbonate and tetraethylorthosilicate in deionized water, adding ethanol, stirring, adjusting pH, reacting to obtain gel, calcining, adding hydrogen to reduce the graphene oxide to obtain silicon-doped alumina nanosheet/graphene composite powder, adding silicon-doped alumina nanosheet/graphene composite powder to ethanol, adding intercalation dispersant and wetting dispersant to obtain silicon-doped alumina nanosheet/graphene slurry, stirring light-scattering particles, silicon-doped alumina nanosheet/graphene slurry, special resin, adhesion promoter and graphene composite antiviral powder, ultrasonically processing to obtain anti-glare nano-antimicrobial composite functional coating, applying the composite functional coating on surface-treated side of transparent polyethylene terephthalate substrate or surface of clean glass, drying and curing. USE - Preparation of anti-glare nano-antimicrobial composite functional coating. ADVANTAGE - The method effectively prepares anti-glare nano-antimicrobial coating and coats the coating on substrate to form coating with strong wear resistance, high bending strength and fracture toughness. DETAILED DESCRIPTION - Preparation of anti-glare nano-antimicrobial composite functional coating involves (S1) adding tetraethylorthosilicate (TEOS) to absolute ethanol, mixing, dripping EDTA and citric acid, mixing, then dripping strontium compound aqueous solution, stirring, dripping concentrated ammonia solution to adjust pH to 7-9, reacting until a gel is formed, adding n-butanol, stirring, azeotropically distilling at 92degrees Celsius to remove the water, continuously refluxing to distill n-butanol to obtain precursor powder, treating the precursor powder at high temperature to obtain hemispherical strontium oxide-enriched silica particles, (S2) mixing grinding resin, wetting dispersant (A), and hemispherical strontium oxide-enriched silica particles with organic solvent to obtain premix, adding to closed non-circulating explosion-proof sand mill, then adding small particle size zirconium balls, and performing low linear velocity and low shear dispersion process to obtain hemispherical strontium oxide-enriched silica slurry, (S3) swelling the polymethyl methacrylate polymer particles using swelling agent, adding hemispherical strontium oxide-enriched silica slurry, heating under ultrasonic wave condition to swell, rotary evaporating the solvent, washing with ethanol, vacuum drying to obtain functional light-scattering particles, (S4) dissolving graphene oxide, aluminum salt, ammonium bicarbonate and tetraethylorthosilicate in deionized water, adding ethanol, stirring, adjusting pH to 7-9 with aqueous ammonia, reacting to obtain gel, drying in blast oven, calcining at high temperature under inert gas atmosphere, lowering temperature, adding hydrogen to reduce the graphene oxide to obtain silicon-doped alumina nanosheet/graphene composite powder with excellent wear resistance, high bending strength and fracture toughness, (S5) adding silicon-doped alumina nanosheet/graphene composite powder to ethanol, adding intercalation dispersant and wetting dispersant (B) for sanding dispersion to obtain silicon-doped alumina nanosheets/graphene slurry, (S6) stirring light-scattering particles, silicon-doped alumina nanosheet/graphene slurry, special resin, adhesion promoter and graphene composite antiviral powder, ultrasonically processing to obtain anti-glare nano-antimicrobial composite functional coating, and (S7) applying the composite functional coating on surface-treated side of the optical-grade transparent polyethylene terephthalate substrate or surface of clean glass using precision coating machine in dust-free and clean environment, drying to form coating film, then surface drying and curing.