Antifouling paint containing nano oxides

Abstract

The invention provides an antifouling paint containing nano oxides. The antifouling paint is prepared from the following raw materials based on a weight ratio: 5-20% of nano oxide, 10-30% of cuprous oxide, 20-30% of chlorine-containing polymer, 3-5% of rosin, 1-7% of polymer dispersant, 3-6% of plasticizer, 2-5% of anti-settling agent and 20-40% of solvent. The preparation method comprises the following steps: proportionally adding chlorine-containing polymer powder to the solvent with equivalent mass, and shearing and stirring at a high speed to obtain a transparent chlorine-containing polymer solution; proportionally adding the polymer dispersant to a certain amount of the solvent, and then adding the nano oxides for high-speed dispersion to obtain nano-oxide slurry; proportionally adding the prepared nano-oxide slurry as well as the cuprous oxide, the rosin, the plasticizer, the anti-settling agent and the like to the chlorine-containing polymer solution under the condition of high-speed stirring or grinding and dispersion; and finally filtering the obtained mixed solution with a sieve mesh or silk cloth to obtain the nano-antifouling paint, sampling, weighing and packaging to obtain the finished product after the sample passes a test.

Description

Technical field [0001] The invention relates to an antifouling or submarine integral antifouling paint suitable for the tidal range and full immersion areas of ships, and belongs to the field of ship antifouling. Background technique [0002] When the ship is operating in the ocean, the surface is subjected to electrochemical corrosion of seawater and erosion of seawater, high humidity of the ocean atmosphere, high mold, high temperature and high salt spray, and erosion of marine microorganisms. Among them, mold and microorganisms are one of the causes of surface corrosion. Key factor. Especially because the bottom of the ship is soaked in sea water for a long time, the adhesion and fouling of marine microorganisms are more serious, which directly affects the reliability, life span and adaptability of the ship to the environment. It is estimated that the resistance at a marine biofouling rate of 5% is equivalent to twice that of a clean surface, fuel consumption increases by 10%...

AI Technical Summary

Problems solved by technology

However, studies have shown that the use of copper alone in antifouling agents is ineffective against diatoms and other algae, and auxiliary poisons must be added, and the toxicity of copper and auxiliary poisons is almost equal to that of organotin

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