Antifouling paint for underwater coating construction

Abstract

The invention discloses an antifouling paint for the underwater coating construction. The antifouling paint comprises a component A and a component B, wherein the component A comprises 20-50 parts of a low molecular epoxy resin, 5-20 parts of a plasticizer, 0.05-1 part of an antifoaming agent, 10-25 parts of silicate mineral powder, 15-40 parts of a broad spectrum antifouling agent, 3-15 parts ofan auxiliary antifouling agent, 0.5-5 parts of a pigment, and 0.5-5 parts of a thixotroping assistant; and the component B is a curing agent which is a Mannich base curing agent, and the mass of the curing agent accounts for 10-30% of the mass of the component A. According to the invention, the antifouling paint is an environmentally friendly resource conserving paint; the coating construction performance is good; the antifouling paint which allows the coating antifouling performance to be improved has a score of more than 85 when the coating is subjected to shallow sea hanging for six monthsin Xiamen seas; the underwater coating construction can be carried out through the antifouling paint; the antifouling paint has an antifouling effect on animal sea creatures of barnacle, oyster and mussel, and botanical algae; and the antifouling paint can be brush-coated, scrape-coated, and roll-coated during underwater coating, the paint cannot be scattered, and the coating does not contract after curing.

Description

technical field [0001] The invention relates to a paint technology, in particular to an antifouling paint which can be painted and constructed underwater. Background technique [0002] Ships and marine engineering are coated with antifouling paint during construction, but the antifouling effect is generally 3 to 5 years, while the docking period of large ships is 7 to 10 years, and the design life of harbor projects is 50 to 100 years, and Mechanical damage and failure of anti-fouling coating during use will cause local fouling, affecting the balance and stability of ships and marine engineering, and the adhesion of fouling marine organisms not only increases the weight of structures, but also causes fouling organisms The destruction of the protective coating and the accelerated local corrosion of the base material have a non-negligible impact on the structure and safety of ships and marine engineering. At present, in addition to antifouling coatings, more mature methods to...

AI Technical Summary

Problems solved by technology

[0006] The patent CN200810173673.1 applied by Guangzhou Synchronous Chemical Co., Ltd. is applied to the underwater construction of marine facilities to cure anti-corrosion and anti-fouling paints. It announces a kind of anti-corrosion and anti-fouling coatings for underwater construction and curing. No relevant antifouling properties mentioned

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