▎ 摘　　要

NOVELTY - Preparing luminous polyamide composite material comprises e.g. (i) ultrasonic dispersing graphene into deionized water to obtain graphene dispersion, adding deionized water into yttrium, vanadate to obtain red phosphor dispersion, then adding graphene dispersion into red phosphor dispersion to obtain material, (ii) adding composite material and ultrasonic dispersing, then reacting with tetraethyl orthosilicate and composite material, centrifuging to obtain and heating to obtain compound, and (iii) adding nylon resin, hybrid glass fiber reinforcement, granulating to obtain final product. USE - The method is useful for preparing luminous polyamide composite material (claimed). ADVANTAGE - The material has high luminous intensity. DETAILED DESCRIPTION - Preparing luminous polyamide composite material comprises (i) adding 1 g graphene into 100 ml deionized water and ultrasonic dispersing at 800-1000 kW under speed of 500-800 revolution/minute for 180-200 minutes to obtain graphene dispersion, adding 500 ml deionized water into 25-100 g yttrium, 0.9 vanadate, 0.04 europium (III), 0.06 aluminum (III) nano-phosphor, ultrasonic dispersing at 1000-1200 kW under speed of 800-1000 revolution/minute for 240-300 minutes to obtain red phosphor dispersion, then dropwise adding graphene dispersion into red phosphor dispersion and ultrasonic dispersing at 100kW for 30-60 minutes, then suction filtration and drying to obtain graphene/red phosphor composite material, (ii) adding 0.5 g graphene/red phosphor composite material and ultrasonic dispersing in ethanol at 300-500 KW under speed of 1000-1200 revolution/minute after, adding water and ammonia, uniformly stirring, then adding tetraethyl orthosilicate and graphene/red phosphor composite material in a mass ratio of 1.8:1, adjusting pH to 9, reacting at 25 degrees C for 12 hours, centrifuging and washing for 3 times with deionized water and acetone to obtain precipitate, drying the precipitate at 90 degrees C for 5 hours to obtain core-shell composite material coated with silicon dioxide, placing the core-shell composite material under argon atmosphere and heating at 800 degrees C for 1.5 hours to obtain compound, immersing compound in hydrofluoric acid and sonicating for 5-60 minutes to remove portions of silicon dioxide, centrifuging and drying to obtain graphene/yttrium, 0.9 vanadate, 0.04 europium (III), 0.06 aluminum (III) phosphor/silicon dioxide composite material, and (iii) adding 60-70 pts. wt. nylon resin, 30-40 pts. wt. hybrid glass fiber reinforcement, 1-5 pts. wt. nylon masterbatch, 1-5 pts. wt. graphene/red phosphor/silicon dioxide composite material and 0.1-0.3 pts. wt. antioxidant, adding into a twin-screw extruder and granulating, where adding hybrid glass fiber reinforcement into side feeder, extruding into twin screw extruder under speed of 120-150 revolution/minute at 265-280 degrees C to obtain polyamide composite material.