▎ 摘　　要

NOVELTY - Preparing aqueous coating involves weighing graphene oxide and sodium acetate trihydrate according to the ratio and uniformly dispersing in mass fraction of 22-25% ethylene glycol in water. After magnetic stirring for 10-15 minutes, adding thioacetamide, stir for 10-15 minutes, add zinc sulfide and potassium carbonate, and mix the liquid into a ball mill tank for ball milling for 8-10 hours. After drying the slurry at 80-90 degrees C for 3-5 hours, vacuum freeze-dry for 1 hour, put it into a crucible, and heat it to 150-200 degrees C in a microwave high temperature muffle furnace at a temperature increase rate of 15 degrees C/minute. After 5-20 minutes of heat preservation, the mixture is cooled by microwave heating for 1 minute, the rapid cooling is suspended for 2 to 3 minutes, and the microwave heating treatment is performed for 1 minute to obtain a gray-brown uniformly dispersed solution. USE - Method for preparing aqueous coating. ADVANTAGE - The method enables to prepare aqueous coating that does not contain volatile organic compounds. Compared with other paints, the high-reflection aqueous paint can not only help lamps to reflect stronger and brighter light, but also has stable and high-reflection performance. The highly reflective aqueous coating also has outstanding impact resistance and flexibility. Its ability to resist corrosion and ultraviolet rays is also very good, and construction is simpler. DETAILED DESCRIPTION - Preparing aqueous coating involves weighing graphene oxide and sodium acetate trihydrate according to the ratio and uniformly dispersing in mass fraction of 22-25% ethylene glycol in water. After magnetic stirring for 10-15 minutes, adding thioacetamide, stir for 10-15 minutes, add zinc sulfide and potassium carbonate, and mix the liquid into a ball mill tank for ball milling for 8-10 hours. After drying the slurry at 80-90 degrees C for 3-5 hours, vacuum freeze-dry for 1 hour, put it into a crucible, and heat it to 150-200 degrees C in a microwave high temperature muffle furnace at a temperature increase rate of 15 degrees C/minute. After 5-20 minutes of heat preservation, the mixture is cooled by microwave heating for 1 minute, the rapid cooling is suspended for 2 to 3 minutes, and the microwave heating treatment is performed for 1 minute to obtain a gray-brown uniformly dispersed solution. After cooling, washing repeatedly with ethanol, and then drying in a blast drying box at 60-70 degrees C for 10-12 hours, the graphene whisker composite material is obtained. Under nitrogen protection, mix epoxy resin, 4-dimethylaminopyridine, add terpene phenol resin while stirring in -5 to 0 degrees C ice-water bath, then heat to 90 degrees C with oil bath began to add acrylic acid dropwise. After 0.5 to 1 hour of dripping, the temperature is maintained at 105 to 110 degrees C after 1 to 2 hours of holding and stirring. The reaction is continued until the acid value of the system was less than 5 mg potassium hydroxide (KOH)/g. Reduce the temperature to 60 degrees C, add butyl acrylate and vinyl alcohol. After the butyl acrylate is completely dissolved in the system, heat up the reaction until the acid value reaches 75-80 mg KOH/g, and filter the material. Add triethanolamine to neutralize and add purified water to obtain water-modified epoxy resin. Add graphene whisker composite material, water-modified epoxy resin, vinyl ester resin, calcium hydroxyphosphate whisker, magnesium hydroxide whisker, polyacetylene, and purified water to the high-speed mixer in order, at 100-300 rotations per minute (rpm). Mechanically stir for 4-5 minutes, then place the above-mentioned high-speed mixer on the magnetic stirrer platform, add dispersant and defoamer, and stir at a speed of 1000 rpm and a temperature of 45-60 degrees C for 5-15 minutes, then add curing agent and leveling agent. When the curing agent is dissolved in water, the stirring is stopped to prepare a hybrid reflective coating, and the prepared hybrid reflective coating is placed in a vacuum drying box and left at 20-25 degrees C for 24 hours to obtain the required product.