Large-surface-tension, small-gap, high-smoothness and low-friction antifouling paint

Abstract

The invention discloses a large-surface-tension, small-gap, high-smoothness and low-friction antifouling paint which comprises a prepolymer solution and a resin solution which are mixed in a ratio of1: 1 for use. The prepolymer solution is prepared from 100 wt% of methylene diisocyanate, and the methylene diisocyanate contains 11 wt%-15 wt% of NCO. The resin solution comprises 46 wt%-51 wt% of polyoxypropylene diamine, 8 wt%-10 wt% of polyether triamine with a molecular weight of 5000, 16 wt%-19 wt% of polydiphenyl amine, 9 wt %-20 wt % of modified amino silicon resin, 3 wt %-10 wt % of modified fluororesin, 6 wt %-9 wt % of modified resin filler, 1 wt %-2 wt % of a binder and 0.5 wt %-2 wt % of a pigment. The marine antifouling paint has the advantages of excellent elongation, elasticity, wear resistance, antifouling property, durability, binding power, large surface tension, small gap, high smoothness and low friction, can avoid the phenomena of marine organism attachment and ship body corrosion in the ship operation or long-time berthing process, and does not easily cause environmental pollution.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an antifouling coating with high surface tension, small voids, high smoothness and low friction. Background technique [0002] A variety of marine organisms will be attached to the part of the ship immersed in seawater below the waterline. The resistance produced by marine organisms not only increases the fuel consumption of the ship, but also leads to the main reason for the reduction of the ship's navigation speed. At present, the most widely used antifouling coatings are tin-containing compounds, which are cheap, easy to obtain raw materials, and have excellent antifouling performance, so that ships have a small amount of marine organisms. However, the existing antifouling coatings containing tin compounds will lead to pollution of the marine environment and remain in the ocean for a long time, which is currently recognized as one of the main factors of marine pollution. The...

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Problems solved by technology

[0005] In order to solve the above problems, the present invention proposes an antifouling coating with large surface tension, small voids, high smoothness, and low friction, which has excellent elongation, elastic modulus, abrasion resistance, antifouling, durability, and adhesion , large surface tension, small voids, high smoothness, and low friction can avoid the phenomenon of marine organisms attaching and hull corrosion when the ship is running or moored for a long time, and it is not easy to cause environmental pollution

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