▎ 摘　　要

NOVELTY - Preparing conductive coating involves preparing functionalized graphene by dissolving 0.1-0.5g graphene oxide in 70-90m1 of DMF, and performing ultrasonic treatment for 30-60min and adding 0.2g catalyst A. After stirring, the temperature is raised to 60 to 80 degrees C, and 1 to 3 g isopropanolamine is slowly added dropwise and reacted for 8 hours to obtain a paste-like product, i.e., modified graphene oxide, which is then washed with absolute ethanol and deionized water to neutral and vacuum dried at 80-90 degrees C in oven for 24-48h. USE - Method for preparing conductive coating (claimed). ADVANTAGE - The method enables to prepare conductive coating, which has remarkable antifouling effect. DETAILED DESCRIPTION - Preparing conductive coating involves preparing functionalized graphene by dissolving 0.1-0.5g graphene oxide in 70-90m1 of DMF, and performing ultrasonic treatment for 30-60min and adding 0.2g catalyst A. After stirring, the temperature is raised to 60 to 80 degrees C, and 1 to 3 g isopropanolamine is slowly added dropwise and reacted for 8 hours to obtain a paste-like product, i.e., modified graphene oxide, which is then washed with absolute ethanol and deionized water to neutral and vacuum dried at 80-90 degrees C in oven for 24-48h. The modified fumed graphene after washing is dispersed in 80 to 100 ml of deionized water and ultrasonic treatment is performed for 30-60min and 0.4g reducing agent is added and reacted for 18-24h to obtain functionalized graphene. The product is washed with absolute ethanol and distilled water to neutral, and finally dried in a vacuum oven at 60-80 degrees C for 24-48h. 20 to 50 pts. wt. butyl acrylate, 5 to 10 pts. wt. methacrylic acid, 5 to 10 pts. wt. styrene, 20 to 80 pts. wt. organosiloxane, 2 to 10 pts. wt. emulsifier, 0.2 to 0.4 pts. wt. ammonium persulfate initiator, 1 pts. wt. 1,4-butyrolactone, 0.32 pts. wt. 1,4,7-trimethyl-1,4,7-triazacyclononane, and 4 to 8 pts. wt. the functionalized graphene and 200 to 400 pts. wt. deionized water are added to the reaction vessel, and the polymerization reaction is carried out at 70 to 90 degrees C for 2 to 4 hours under constant stirring. After the reaction, the system is cooled to 30 to 50 degrees C, and then the pH adjuster is added to adjust the pH of the system to 7 to 8 to obtain silica-modified styrene-acrylate emulsion containing graphene. The conductive coating is prepared by adding 100 to 300 pts. wt. deionized water to the reactor, and the mixture is heated to 35 to 45 degrees C in a water bath. 10 to 30 pts. wt. a graphene-containing silicone-modified styrene-acrylate emulsion is added to the reactor at a rate of 600 to 800 revolutions per minute. 1 to 3 pts. wt. a polypropylene wax emulsion, 1 pts. wt. N, N'-diisopropylethylenediamine, 15 to 25 pts. wt. the filler are added and reacted at 35-45 degrees C for 3-5h. The pH adjuster is added to adjust the pH value to 7-8, and finally water is added to adjust the viscosity to obtain conductive coating.