A kind of fluorescent low surface energy marine antifouling coating and preparation method thereof

Abstract

The invention relates to marine antifouling paint technology, and aims to provide a fluorescent low surface energy marine antifouling paint and a preparation method thereof. The paint comprises a silicon-containing polyurethane resin solution terminated by a silane coupling agent, pigments and fillers, and a diluent. The silicon-containing polyurethane resin solution refers to a mixture of the silicon-containing polyurethane resin and the diluent. The invention is applicable to the technical field of marine antifouling coatings. The antifouling coating can be directly coated on the epoxy base material without additionally adding a connecting coating or an adhesive coating to achieve good adhesion performance, and overcomes the The problem of poor adhesion of polysiloxane low surface energy antifouling topcoats to substrates such as epoxy primers. It has excellent bonding strength and high adhesion with the substrates involved in marine engineering equipment, and can be applied to various ships, marine engineering equipment and structural facilities, marine ranch breeding nets, etc. It can reduce the surface energy of the surface of the substrate, is not easy to attach aquatic organisms, and can exert a long-term antifouling effect.

Description

technical field [0001] The invention relates to marine antifouling paint technology, discloses a fluorescent low surface energy marine antifouling paint, in particular relates to a low surface energy topcoat paint that does not require a link coat or a tie coat. The coating comprises a fluorescence-responsive coumarin-based silane coupling agent-terminated silicon-containing polyurethane resin. The invention also relates to a preparation method and a coating method of the antifouling paint. Background technique [0002] my country's land coastline is more than 18,000 kilometers long, and the ocean environment is complex and changeable from north to south. When a ship sails in the ocean environment, the hull part is easily fouled by marine organisms due to long-term immersion in seawater. According to statistics, 4,000-5,000 species of marine fouling organisms have been discovered in the world, and as many as 650 species have been recorded along the coast of China. There a...

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Problems solved by technology

However, due to the low adhesion between the low surface energy antifouling coating and its contact interface, the low surface energy antifouling coating and its coated substrate often cannot achieve good coating and application effects.

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