The application of antifouling paint is the most economical and effective method to solve the pollution of marine organisms. According to the type of resin, antifouling paint can be divided into dissolution type antifouling paint, self-polishing antifouling paint and low surface energy antifouling paint. Non-toxic low surface energy antifouling paint is the development direction of a new generation of antifouling paint, but due to its high cost, poor adhesion and high construction requirements, it is limited in application. Currently, the mainstream products of antifouling paints on the market still It is a dissolution-type antifouling paint and a self-polishing antifouling paint. Both of these traditional antifouling paints contain a large amount of cuprous oxide, which is more than 40%. Cuprous oxide is currently the most widely used antifouling agent. It has antifouling activity for most animal marine organisms and most plant marine organisms. Its copper ions generated by decomposition in seawater can make marine organisms The main enzyme that lives on it loses its activity, or the biological cell protein flocculates to produce a metal protein precipitate, which causes the biological tissue to change and die. However, the cuprous oxide is stable in nature, is not easily degraded, and can enter the human body through the biological chain, causing damage. At present, the limited use of cuprous oxide has been gradually put on the agenda.In this study, the acrylic acid prepolymer was synthesized by using dibenzoyl peroxide to initiate the synthesis of carboxyl group-containing acrylic acid prepolymer, and then the zinc acrylate resin was synthesized by acid-base neutralization reaction with the self-made basic zinc salicylate intermediate. The salicylic acid used in the synthesis of zinc intermediate is a raw material of the pharmaceutical industry, and has a certain antiseptic and bactericidal effect. After the introduction of the zinc acrylate resin, it can be released during the hydrolysis process of the resin, thereby preventing the antifouling effect. The synthetic zinc acrylate resin itself has certain bactericidal and antifouling properties. The low-oxidized cuprous self-polishing antifouling paint was prepared by using the zinc acrylate resin as a matrix, and the properties thereof were tested. The results show that the low cuprous oxide antifouling paint has excellent performance and the cost is lower than that of the conventional antifouling paint. with broadly application foreground.
