▎ 摘　　要

NOVELTY - Preparation of red light emitting coating includes mixing 1 g graphene and 100 mL deionized water, dispersing, centrifuging at 800 revolutions/minute (rpm) to obtain graphene dispersion, mixing 25-100 g Y0.9VO4:Eu3+, 0.04 g aluminum and 0.06 g nano phosphorus, dispersing in deionized water at 1000-1200 W, performing ultrasonic vibration at 800-1000 rpm, stirring for 240-300 minutes to obtain red phosphorus dispersion liquid, adding graphene dispersion, mixing for 30-60 minutes, performing suction filtration and drying to obtain graphene/red phosphorus composite material. USE - Method for preparing red light emitting coating (claimed). ADVANTAGE - The red light emitting coating has high luminous intensity, high uniformity, high dispersibility and high storage stability. DETAILED DESCRIPTION - Preparation of red light emitting coating involves mixing 1 g graphene and 100 mL deionized water, dispersing, centrifuging at 800 revolutions/minute (rpm) to obtain graphene dispersion, mixing 25-100 g Y0.9VO4:Eu3+, 0.04 g aluminum and 0.06 g nano phosphorus, dispersing in deionized water at 1000-1200 W, performing ultrasonic vibration at 800-1000 rpm, stirring for 240-300 minutes to obtain red phosphorus dispersion liquid, adding graphene dispersion, mixing for 30-60 minutes, performing suction filtration, drying to obtain graphene/red phosphorus composite material, mixing 3-6 pts. wt. graphene/kaolin/silicon dioxide composite filler and 2-4 pts. wt. graphene/calcium carbonate/silicon dioxide composite filler, performing ultrasonic dispersion at 500-800 kW and 1000-1200 rpm for 15-20 minutes, centrifuging, adding 15-20 pts. wt. deionized water, adding 1-5 pts. wt. graphene/red phosphorus composite material, centrifuging, dispersing, stirring for 15-20 minutes, centrifuging, adding 70-80 pts. wt. film forming agent and mixing.