▎ 摘　　要

NOVELTY - Preparing luminous complex coating comprises preparing graphene/long afterglow fluorescent powder complex material and graphene/long afterglow fluorescent powder/silicon dioxide complex material, taking graphite/kaolin/silicon dioxide complex filler and graphene/calcium carbonate/silicon dioxide complex filler, ultrasonic vibrating, centrifuging, dispersing with deionized water and processing, to obtain solution A3, B3 and C1, ultrasonically vibrating, centrifuging, adding solution B3 and C1 to A3, adding film forming material and mixing. USE - The method is useful for preparing luminous complex coating (claimed). ADVANTAGE - The method: can improve the luminous intensity of the aqueous luminous paint and luminous uniformly, while improving the dispersibility of fluorescent powder in the paint, construction performance and storage stability of coatings. DETAILED DESCRIPTION - Preparing luminous complex coating comprises (a) preparing graphene/long afterglow fluorescent powder complex material by taking 1 g graphene, adding 100 ml deionized water, ultrasonically vibrating at 800-1000 kW and centrifuging at a rate of 500-800 revolution/minute for 180-200 minutes, to obtain graphene dispersion liquid, taking 25-100 g long afterglow fluorescent powder, adding 500 ml deionized water, ultrasonically vibrating at 1000-1200 kW and centrifuging at a rate of 800-1000 revolution/minute for 240-300 minutes, to obtain long afterglow fluorescent powder dispersion liquid, slowly adding graphene dispersion liquid in a dropwise manner at 100 kW to the long afterglow brightness fluorescent powder dispersion liquid, ultrasonically treating for 30-60 minutes, vacuum filtering, drying, heat treating at 1050 degrees C under vacuum for 30 minutes and heat treating at 1250 degrees C for 60 minutes, to obtain graphene/long afterglow fluorescent powder complex material, (b) preparing graphene/long afterglow fluorescent powder/silicon dioxide complex material by taking 0.5 g graphene/long afterglow fluorescent powder complex material, ultrasonically vibrating at 300-500 KW, centrifuging at a rate of 1000-1200 revolution/minute, dispersing in ethanol, adding water and aqueous ammonia, stirring, adding ethyl orthosilicate and graphene/long afterglow fluorescent powder complex material in a mass ratio of 1.8:1, adjusting pH to 9, reacting at 25 degrees C for 12 hours, centrifuging, sequentially washing with acetone and deionized water for 3 times, to obtain precipitate, drying the precipitate at 90 degrees C for 5 hours, to obtain core shell complex material with silicon dioxide coating, heat treating core shell complex material with silicon dioxide coating in argon gas atmosphere at 800 degrees C for 1.5 hour, to obtain compound, ultrasonically immersing the compound in hydrofluoric acid for 5-60 minute, removing a part of silicon dioxide, centrifuging and drying, to obtain graphene/long afterglow fluorescent powder/silicon dioxide complex material, (c) taking 3-6 pts. wt. graphite/kaolin/silicon dioxide complex filler and 2-4 pts. wt. graphene/calcium carbonate/silicon dioxide complex filler, ultrasonic vibrating at 500-800 KW, centrifuging at a rate of 1000-1200 revolution/minute, dispersing with 15-20 pts. wt. deionized water and processing for 90-120 minutes, to obtain solution A3, taking 1-5 pts. wt. graphene/red light fluorescent powder/silicon dioxide complex material, ultrasonically vibrating at 500-800 KW, centrifuging at a rate of 1000-1200 revolution/minute, dispersing with 15-20 pts. wt. deionized water and processing for 90-120 minutes, to obtain solution B3, taking 1-5 pts. wt. graphene/long afterglow fluorescent powder/silicon dioxide complex material, ultrasonically vibrating at 500-800 KW, centrifuging at a rate of 1000-1200 revolution/minute, dispersing with 15-20 pts. wt. deionized water and processing for 90-120 minutes, to obtain solution C1, ultrasonically vibrating at 200-400 KW, centrifuging at a rate of 500-800 revolution/minute while stirring, slowly adding solution B3 and C1 in a dropwise manner to solution A3, to obtain mixed solution, adding 70-80 pts. wt. film forming material, mixing and stirring.