A long-acting controlled-release marine antifouling coating

Abstract

The invention discloses a long-lasting controlled-release ocean antifouling coating which comprises the following components in parts by weight: 40-60 parts of a resin base material, 20-35 parts of acontrolled-release antifouling agent, 13-19 parts of rosin, 8-20 parts of a functional filler, 15-20 parts of a pigment filler, 4-12 parts of a curing agent DN-EB, 3-6 parts of an anti-sinking agent,0.2-0.5 part of a defoaming agent and 20-40 parts of a solvent, wherein the resin base material comprises one or two of fluorinated acrylic ester and an epoxy resin; the controlled-release antifoulingagent is a composite gel system of sodium alginate and chitosan. A biological antifouling agent is coated in the composite gel system of sodium alginate and chitosan, so that the toxic function on innocent marine organisms can be reduced, the antifouling lasting period of the antifouling coating can be sufficiently prolonged, the utilization rate of the antifouling coating can be increased, amount reduction and effect improvement of the antifouling coating can be promoted from a technique level, and economic additional values of the product can be increased.

Description

technical field [0001] The invention relates to a long-acting controlled-release marine antifouling paint. Background technique [0002] With the advancement of human beings to the ocean, the marine economy and marine industry are further upgraded and diversified. While the rapidly developing marine industry has made great contributions to the world economy, the ensuing marine pollution problem has affected the human economy. activities must be taken seriously. Marine fouling refers to marine equipment, marine hulls, etc. that have been immersed in seawater for a long time, and are attached and grown on the surface by a large number of animals, plants and microorganisms in the ocean, such as barnacles, seaweed, shellfish, etc., causing a series of adverse effects. as a result of. At present, coating antifouling coatings with antifouling properties is a relatively mature, effective and most widely used antifouling method. [0003] At present, the existing antifouling coati...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing antifouling coatings rely on the gradual release of antifouling coatings into seawater to inhibit and prevent the attachment and growth of organisms on ships and other marine structures. Also shorter, so there is an urgent need to research and develop new environmentally friendly and long-lasting marine antifouling coatings

Moreover, traditional antifouling coatings generally contain heavy metals such as tin and copper, which will pollute the environment, are not environmentally friendly, and will be enriched in organisms and be banned

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