Long-acting self-polishing antifouling paint and preparation method thereof

Abstract

The invention discloses long-acting self-polishing antifouling paint and a method for preparing the same. The long-acting self-polishing antifouling paint comprises a self-polishing resin, nano-silver, capsaicin, pigments, fillers, aids and a solvent, wherein the self-polishing resin serves as the main material for preparing the antifouling paint; and the nano-silver, the capsaicin and the like are added into the self-polishing resin to prepare a self-polishing antifouling resin. After the antifouling paint is painted on the surface of a ship, the paint can be peeled automatically at certain speed when the ship sails, cuprous oxide, the capsaicin and the nano-silver are released to make the surface of a ship body smooth, so the antifouling function of the long-acting self-polishing antifouling paint is realized.

Description

technical field [0001] The invention belongs to the field of coatings, and relates to an antifouling coating for ships and oceans, more specifically to a long-acting self-polishing antifouling coating and a preparation method thereof. technical background [0002] With the change of the marine environment, people's environmental protection requirements for the materials used in ships traveling in the ocean are increasing year by year. The original self-polishing antifouling coatings containing organic tin can no longer meet the requirements of environmental protection. From January 1, 2008 It is completely banned from use. [0003] So far, although a variety of antifouling coatings have been developed, such as patent application number 03130372.2, the patent name is "capsaicin self-polishing antifouling coating and its preparation method", the antifouling coating is mainly composed of hydrolyzable resin, silica powder , ceramic micropowder, natural capsaicin and organic sol...

AI Technical Summary

Problems solved by technology

[0002] With the change of the marine environment, people's environmental protection requirements for the materials used in ships traveling in the ocean are increasing year by year. The original self-polishing antifouling coatings containing organic tin can no longer meet the requirements of environmental protection. From January 1, 2008 A complete ban on the use of

[0003] So far, although a variety of antifouling coatings have been developed, such as patent application number 03130372.2, the patent name is "capsaicin self-polishing antifouling coating and its preparation method", the antifouling coating is mainly composed of hydrolyzable resin, silica powder , ceramic micropowder, natural capsaicin and organic solvents, it uses hydrolyzable polypropylene resin as matrix, capsaicin as repellent, modified montmorillonite micropowder as dispersant; application number 200610038447.3, patent name is "Biological low surface energy ship antifouling coating", the antifouling material is composed of fluoro-silicone resin, biological extracts (capsaicin, chitin) slow-release microcapsules, nano-titanium dioxide, microporous silica and solvents; application No. 200710043669.9, titled "Anti-fouling coating containing microencapsulated capsaicin and its preparation method", the anti-fouling coating is mainly composed of chloroether resin or ethanol resin, and microencapsulated capsaicin, in which capsaicin is used as the antifouling coating However, only using capsaicin can only avoid marine organisms, and has no effect on killing bacteria; the application number is 201010513975.6, and the patent name is "an environmentally friendly self-polishing antifouling coating". The antifouling coating is composed of hydrolyzed polyolefin resin, Composed of cuprous oxide, isophorone and antifouling additives, only cuprous oxide is used as a fungicide in the antifouling paint, and the antifouling additives used need additional generation, which is not conducive to production and use

Moreover, these antifouling coatings are non-toxic, but there is still a certain gap with organotin in antifouling performance, mainly in: poor antifouling effect; poor algae killing performance; Slow peeling on the surface makes the surface of the hull smooth; organic compounds are used as biocides; the service life is short; the antifouling effect of antifouling coatings cannot be exerted when the ship is stationary, etc.

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