A kind of marine antifouling paint and spraying method for ship surface

Abstract

The invention discloses ocean antifouling paint for the surface of a ship. The ocean antifouling paint for the surface of the ship is composed of two parts, namely antifouling primer and antifouling finish, when the total weight of each part is metered in 100 parts by weight, the antifouling primer comprises the following components in parts by weight: 10-20 parts of epoxy resin, 10-30 parts of UV-curing resin, 10-30 parts of UV-curing monomer mixture I, 2-5 parts of photoinitiator, 30-50 parts of mixed solvent I, 0-9 parts of auxiliary and 0.9-5 parts of adhesion promoter; the antifouling finish comprises the following components in parts by weight: 8-20 parts of epoxy resin, 8-20 parts of UV-curing resin, 10-30 parts of UV-curing monomer mixture I, 1-5 parts of photoinitiator, 30-50 parts of mixed solvent I and 0-5 parts of auxiliary. The ocean antifouling paint for the surface of the ship is environment-friendly and pollution-free, and construction time is short; meanwhile, fullness of a film is high, the film can be crosslinked and solidified, crosslinking intensity is high, hardness is high, scratch resistance is high, surface stability is good, and tolerance is excellent; the film can be applied to the surface of a high and low speed ship and has a long-term antifouling effect.

Description

technical field [0001] The invention relates to a coating, in particular to a marine antifouling coating and a spraying method for the surface of a ship. Background technique [0002] The fouling of marine organisms on the surface of ships often increases navigation resistance, reduces navigation speed, and increases fuel consumption. Therefore, reducing the adhesion of fouling on the surface of ships has become a hot spot in the research of coating materials. The antifouling mechanism of traditional fluorocarbon antifouling coatings is based on the low surface energy physical effect on the surface of the coating. It is difficult for marine organisms to adhere, and even if they adhere, they are not firm. When the ship is running at high speed, it is easy to be washed off by the water flow. , avoiding the release of toxic substances from traditional toxic coatings. [0003] The current research and development of marine fluorocarbon antifouling coatings, or the development ...

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Problems solved by technology

[0004] However, the currently developed fluorocarbon antifouling coatings are mostly used in high-speed docks, and they need to be cleaned regularly, otherwise the fouling bioadhesion will grow and it will be difficult to remove

At present, the existing research only focuses on the low surface energy antifouling effect of fluorocarbon coatings, and it is difficult to fundamentally solve the problem of ship surface fouling

In addition, cleaning, scratching and damage of the coating surface often lead to the reduction of antifouling effect; and for fluorocarbon polymer series coatings, the poor compactness of the coating and the molecular reconstruction of the coating surface induced during the adhesion process also lead to the reduction of the antifouling effect of the coating. These problems restrict the application of fluorocarbon coatings in the field of marine antifouling

Therefore, the preparation of efficient and broad-spectrum fluorocarbon marine antifouling coatings is extremely challenging

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