▎ 摘　　要

NOVELTY - Self-polishing graphene antifouling coating comprises 20-40 pts. wt. resin, 0-20 pts. wt. rosin xylene solution, 15-20 pts. wt. copper ion composite, 10-15 pts. wt. cuprous oxide, 10-15 pts. wt. zinc oxide, 2-5 pts. wt. organic antifouling agent, 2-5 pts. wt. pigment, 0.5-2 pts. wt. graphene, 2-8 pts. wt. talc powder, 0.5-2 pts. wt. chlorine wax, 0.5-1 pt. wt. anti-settling agent and xylene in appropriate amount, where the copper ion composite is prepared by weighing dimethylaminoethyl methacrylate, azobisisobutyronitrile and copper sulfate pentahydrate in a ratio of 100 mmol:1 mmol:8 mmol, mixing dimethylaminoethyl methacrylate and azobisisobutyronitrile, deoxygenating and reacting at 75 degrees C for 8 hours, adding methanol to dissolve, adding copper sulfate pentahydrate, mixing well, ultrasonically treating for 8-15 minutes, filtering and washing to obtain copper ion composite. USE - As self-polishing graphene antifouling coating. ADVANTAGE - The coating fixes copper ions on the resin main chain through complexes, while retaining portion of the cuprous oxide, which not only ensures the antibacterial and antifouling effects of copper ions, avoids the weakening of the long-lasting antifouling performance caused by the excessive loss of copper ions, modifying the added graphene, improves the compatibility of the graphene, the adsorption between graphene and cuprous oxide to delay the initial release rate of copper ions and improves the durable antifouling effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the self-polishing graphene antifouling coating, involving (i) performing above-mentioned method for preparing the copper ion composite, (ii) adding resin and rosin xylene solution to the dispersion container, and stirring at a speed of 600-800 rpm for 1-3 minutes, (iii) adding cuprous oxide, zinc oxide, pigment, graphene, talc powder, chlorinated wax, anti-settling agent, organic anti-fouling agent and copper ion composite to the dispersion container after stirring in step (ii), stirring for 10-15 minutes, dispersing at a speed of 1800-2000 rpm for 20-30 minutes, (iv) stirring the material in the dispersing container in (iii) at a speed of 600-800 rpm, while adding an appropriate amount of xylene, and (v) grinding the obtained material to a fineness below 30 mu m to obtain the product.