Self-layered low-surface energy antifouling paint
An antifouling coating and low surface energy technology, applied in antifouling/underwater coatings, epoxy resin coatings, coatings, etc., can solve low surface energy antifouling coatings and limit low surface energy antifouling coatings , low adhesion strength, etc.
Inactive Publication Date: 2009-05-20
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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Problems solved by technology
[0004] Due to the low surface energy of low surface energy antifouling coatings, the adhesion strength on other materials is also low, which limits the application of low surface energy antifouling coatings to a certain extent
Method used
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[0025] The present invention will be further described below in conjunction with the embodiments, but the protection scope of the present invention is not limited thereto. The self-layered low surface energy antifouling paint of the present invention is a two-component paint. The first component and the second component are prepared according to the ratio, and then the first and second components are mixed uniformly and coated on the substrate to cure to form an antifouling function Coating.
[0026] Table 1 Examples of self-layered low surface energy antifouling coatings
[0027]
[0028] Note: Amine curing agent is amidoamine, polyetheramine, aromatic amine or cycloaliphatic amine curing agent.
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The invention provides an antifouling coating which can be self-layered and solidified, has low surface energy and consists of component A and component B, wherein, according to the weight formula, the component A consists of 50-100 parts of epoxy resin, 0-50 parts of epoxy-capped esserbetol, 60-240 parts of polymethyl siloxane resin, 0-20 parts of pigment, and 0-70 parts of organic solvent; component B consists of 25-40 parts of amine curing agent, 2-16 parts of organic silicone cross-linking agent, 0-0.5 part of organic silicon-crosslinked catalyst and 0-5 parts of organic solvent. The coating uses a principle that the epoxy resin and the organic silicon resin are incompatible in each other, and can be automatically layered during the film-forming process; and the epoxy resin deposits at the bottom and the organic silicon resin is exposed on the external surface. The antifouling coating with low surface energy has the characteristics of excellent adhesion of epoxy resin and low surface energy of the organic silicon and has certain antifouling effect.
Description
Technical field [0001] The invention relates to a chemical paint, in particular to a self-layered low surface energy antifouling paint. Background technique [0002] Marine fouling organisms are animals, plants and microorganisms that grow on the bottom of ships and on the surface of all facilities in the ocean. Fouling organisms can increase the navigation resistance of ships, increase fuel consumption, and endanger the safety of navigation. Most ship bottoms use anti-fouling coatings to prevent fouling by marine organisms. [0003] The low surface energy antifouling paint utilizes the low surface energy of the coating, and the fouling organisms are not easy to adhere to its surface. Even if it adheres, it can also be easily removed by water washing or other mechanical means. Low surface energy antifouling coatings are environmentally friendly because they do not use the cuprous oxide and organic biocides that are used in large amounts in common antifouling coatings, so they are...
Claims
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Login to View More IPC IPC(8): C09D163/00C09D183/04C09D5/16
Inventor 叶章基黄志军姚敬华
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP