Nontoxic antifouling paint for oceanographic ship and facilities and method for preparing paint

Abstract

The invention discloses a nontoxic antifouling paint for an oceanographic ship and facilities and a method for preparing the paint. The paint consists of the following components in percentage by weight: 15 to 55 percent of base material, 0.01 to 10 percent of antifouling agent, 10 to 30 percent of filler, 0.3 to 25 percent of pigment, 2 to 8 percent of auxiliary agent and 3 to 55 percent of solvent, wherein the antifouling agent is silver grains with average grain diameter of between 1 and 200nm. The paint does not contain toxic agents, such as dichloro-diphenyl-trichloroethane, organic tin,cuprous oxide and the like, at all while effectively suppressing corrosion of marine biological attachments, meets the related regulations of international maritime organization and future development trend of the antifouling paint, realizes non-toxicity and environmental friendliness of the marine antifouling technology, and can be widely applied to the facilities and the fields, such as ships, floating piers, marine oil platforms, submarine cables, cooling pipes of power plant near the sea, sea water culture net cage and the like.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a non-toxic antifouling coating used for marine vessels and facilities. Background technique [0002] One of the most important problems encountered in offshore operations is the attachment and fouling of some marine organisms to various marine facilities such as ships, offshore drilling platforms, buoys, mariculture cages, and marine detection instruments. At present, more than 200,000 species of marine organisms have been preliminarily proven, including thousands of species of attached organisms. This kind of marine organisms mainly attach to the hull and the parts below the waterline of marine facilities, which will bring great harm and considerable economic losses to offshore operations. Preventing the harm and adverse effects of marine attached organisms on ships and marine facilities has always been is the focus of attention. [0003] Statistics show that the damage and ...

AI Technical Summary

Problems solved by technology

However, studies have shown that the effective antifouling period of alkaline silicate antifouling coatings is not long, the physical and chemical properties are poor, and the practical application prospects are not clear