▎ 摘　　要

NOVELTY - A graphene composite material based on 4-aminostyrene modification by (S1) adding graphene oxide to a flask, adding toluene, magnetically stirring, performing ultrasonic treatment, dripping 4-aminostyrene into the flask, continuing to perform ultrasonic treatment after the addition is finished, performing suction filtration, washing using dimethyl formamide, drying in a vacuum drying oven to obtain modified graphene oxide and sealing, (S2) adding modified graphene oxide, dimethyl formamide, styrene, functional monomer and pentamethyl divinyl triamine into the flask, vacuumizing, introducing nitrogen, adding copper(I) chloride, heating in an oil bath, reacting, stopping the reaction, passing through a column, carrying out rotary evaporation and concentration on the solution passing through the column, and drying in vacuum drying oven to obtain a composite material, and (S3) performing quaternization treatment on the composite material to obtain the graphene composite material. USE - As a graphene composite material based on 4-aminostyrene modification. ADVANTAGE - The composite materials have high mechanical properties, barrier properties and certain antibacterial properties, and have great potential in optoelectronic equipment, biomedicine and packaging materials. DETAILED DESCRIPTION - A graphene composite material based on 4-aminostyrene modification comprises (S1) adding graphene oxide to a flask, adding toluene, magnetically stirring for 12 hours, performing ultrasonic treatment at 30℃ for 12 hours, dripping 4-aminostyrene into the flask, continuing to perform ultrasonic treatment at 30℃ for 4-5 hours after the addition is finished, performing suction filtration, washing for 3-5 times using dimethyl formamide, drying in a vacuum drying oven at 60℃ to obtain modified graphene oxide and sealing for later use, (S2) adding modified graphene oxide, dimethyl formamide, styrene, functional monomer and pentamethyl divinyl triamine into the flask sequentially, vacuumizing, introducing nitrogen, repeatedly operating for 3 times, adding copper(I) chloride, heating to 100-110℃ in an oil bath, reacting for 48 hours at constant temperature under the protection of nitrogen, stopping the reaction in an ice bath, passing through a column, carrying out rotary evaporation and concentration on the solution passing through the column, and drying for 12 hours in a 50℃ vacuum drying oven to obtain a composite material, and (S3) carrying out quaternization treatment on the composite material to obtain the graphene composite material.