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A technology of nano-oxide and antifouling coatings, applied in antifouling/underwater coatings, rubber derivative coatings, rosin coatings, etc., to achieve strong absorption and dissipation properties, good wear resistance, and good bonding properties
Inactive Publication Date: 2011-09-14
ZHEJIANG OCEAN UNIV
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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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Embodiment 1
[0026] Determined to be made of the following raw materials by weight ratio: 5% nano titanium dioxide, 5% nano zinc oxide, 15.5% cuprous oxide, 20% chloroether resin, 40% xylene solvent, 4% rosin, 1.5% high It is composed of molecular dispersant EFKA-4010, 4% tricresol phosphate and 5% organic bentonite.
[0027] Configure 100g according to the following steps:
[0028] First, add 20g of chloroether resin powder to 20g of xylene solvent and stir at high speed (1500r / min) until a transparent colloidal solution is obtained;
[0029] Then add 1.5g polymer dispersant EFKA-4010 to 20g xylene, then add 5g nano titanium dioxide and 5g nano zinc oxide, disperse at 2000rpm for 15 minutes at high speed, and then grind with a sand mill for 2 hours to make nano titanium dioxide slurry .
[0030] Then add 31.5g of nano pulp, 15.5g of cuprous oxide, 4g of rosin, 4g of tricresol phosphate and 5g of organic bentonite in proportion to 40g of the above-mentioned chloroether resin solution under high-s...
Embodiment 2
[0033] It is determined to be made of the following raw materials in weight ratio: 7% of nano titanium dioxide, 14% of cuprous oxide, 23% of chlorinated rubber, 40% of xylene and n-butanol solvent with a weight ratio of 3:1, 5% of rosin, It is composed of 3% polymer dispersant Haichuan Chemical 5040, 4% tricresol phosphate and 4% silica.
[0034] Configure 100g according to the following steps:
[0035] First add 23g of chlorinated rubber powder to 23g of xylene and n-butanol solvent with a weight ratio of 3:1, and stir at high speed (1500 r / min) until a transparent colloidal solution is obtained;
[0036] Then add 3g of polymer dispersant Haichuan Chemical 5040 to 17g of xylene and n-butanol solvent with a weight ratio of 3:1, add 7g of nano titanium dioxide, disperse at 2000rpm for 15 minutes at high speed, and then grind with a sand mill for 2 hours. Nano titanium dioxide slurry.
[0037] Then add the prepared 27g nano pulp, 14g cuprous oxide, 5g rosin, 4g tricresol phosphate and ...
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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%...
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