▎ 摘　　要

NOVELTY - Antifouling coating comprises A component and B component, where the A component is: 500 pts. wt. group hydrolysis-type polyurethane prepolymer, 25-50 pts. wt. bentonite, 25-50 pts. wt. titanium dioxide, 60-120 pts. wt. zinc oxide, 15-30 pts. wt. talc powder, 15-30 pts. wt. polypyrrole-graphene nano filler and the B component is: 5-7 pts. wt. flatting agent, 5-7 pts. wt. antifoaming agent, 6-15 pts. wt. chain extender, 10-25 pts. wt. silane coupling agent and 1-2 pts. wt. catalyst. USE - The antifouling coating is useful on the ocean buoy (claimed). ADVANTAGE - The antifouling coating: is a two-component polyurethane coating, which has good adhesive force, anti-collision, crack resistance, but also can improve the antifouling property and anti-pollution durability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the antifouling coating, comprising (i) adding each raw material of the A component into the high speed dispersion machine, dispersing for 15-45 minutes at high speed to obtain the A component; and (ii) adding each raw material of the component B into a high speed dispersion machine, and dispersing at a high speed for 15-30 hours to obtain the component B.