Copper-free and environment-friendly self-polishing ocean antifouling paint

Abstract

The invention provides copper-free and environment-friendly self-polishing ocean antifouling paint. The copper-free environment-friendly and self-polishing ocean antifouling paint is prepared from matrix resin A with self-polishing property, an organic antifouling agent B without any copper type antifouling agent, pigment filling C, an auxiliary agent D and a solvent E. The matrix resin A is characterized in that a preparation process comprises two steps: step 1: carrying out free radical copolymerization on acrylic acid or methacrylic acid and an ethenyl unsaturated monomer a1 without metal in a certain amount of solvent at certain temperature under the action of an initiator, so as to prepare an acrylic acid or methacrylic acid pre-polymer; step 2: carrying out refluxing reaction on the pre-polymer prepared by the step 1, saturated organic acid and oxide or hydroxide of zinc or a zinc salt at certain temperature; stopping the reaction until obtained effluent reaches a pre-set value, so as to obtain the matrix resin A.

Description

technical field [0001] The invention relates to a copper-free environmental protection self-polishing marine antifouling coating. The antifouling coating has good self-polishing performance, does not contain any copper antifouling agent, can greatly reduce copper emissions, and save a large amount of heavy metal resources. It has no pollution to the marine environment and is of great significance in protecting the marine environment. Background technique [0002] Anti-fouling paint is a special marine paint that is applied to the bottom of the ship to prevent marine organisms from attaching and fouling, and to keep the bottom of the ship smooth and clean. Its purpose is to reduce ship navigation resistance, save fuel consumption and reduce CO 2 emissions, reduce the carbon footprint of ships, and slow down the global greenhouse effect. Therefore, the application of antifouling coatings is very consistent with the international policy guidelines for energy conservation and ...

AI Technical Summary

Problems solved by technology

However, in order to achieve a good antifouling effect, traditional antifouling coatings have added a large amount of organic tin, DDT, cuprous oxide and other substances harmful to the marine environment, causing serious harm to the marine environment.

For example, organotin will accumulate in fish and shellfish and cause genetic variation, and may enter the food chain; DDT is extremely difficult to degrade in the marine environment, and can accumulate in organisms and penetrate into all links in the food chain, causing genetic mutations; Cuprous oxide will accumulate in large quantities in the harbor, causing a large number of plankton and algae to die, seriously disrupting the ecological balance of the ocean

Images