Preparation of acrylic metal salt resin containing capsaicin derivative structure and study of anti-fouling properties

Modifications of acrylic resins with environmentally friendly compounds often solve the problems of marine fouling. In this work, capsaicin derivatives-modified acrylic acid resins were successfully synthesized via free radical polymerization and condensation reactions of monomeric acrylic acid, capsaicin derivatives, metal salts and benzoic acid and structurally characterized by infrared spectroscopy and nuclear magnetism. The physicochemical properties of the synthesized resin coatings were tested with a rotary viscometer, gel permeation chromatography, video optical contact angle measurements and a laser confocal tester. The self-polishing and antifouling properties of the resins were investigated with dynamic simulation experiments, algae inhibitions, bacterial inhibition experiments and real sea antifouling experiments. By comparing with the acrylic resin without capsaicin derivatives, the acrylic resin with added capsaicin derivatives had good antifouling performance, and the optimal content was 2.5 %. In summary, the capsaicin derivative-modified acrylic metal salt resins have good self-polishing properties and antifouling properties.