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Self-grinding non-toxic antifouling paint for hull bottoms and preparation method of self-grinding non-toxic antifouling paint

An anti-fouling paint, abrasive technology, applied in the field of paint, can solve problems such as inability to use on a large scale, bioaccumulation, etc.

Active Publication Date: 2017-07-28
CHANGZHOU TONGFENG PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcoming that organotin self-grinding coatings in the prior art are prone to bioaccumulation and cannot be used on a large scale, and provide a self-grinding non-toxic antifouling paint for ship bottoms

Method used

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  • Self-grinding non-toxic antifouling paint for hull bottoms and preparation method of self-grinding non-toxic antifouling paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] One, the preparation of modified resin composition

[0031] 1) Resin polymerization reaction: Add 5 parts by weight of styrene, 7 parts by weight of acrylonitrile, and 1 part by weight of methyl methacrylate to 15 parts by weight of toluene and heat to 78-82 °C, then add 0.3 parts by weight of catechol, 0.5 parts by weight of benzoyl peroxide was stirred and reacted; the temperature was raised to 120° C. for 2-3 hours at a heating rate of 5° C. / min;

[0032] 2) Preparation of the slow-release antifouling agent precursor: 3 parts by weight of sulfobutyl-β-cyclodextrin are dispersed in 8 parts by weight of dimethylformamide, the temperature is raised to 50°C and stirred, and then nano-sized cuprous oxide is added 2 parts by weight and 1.3 parts by weight of 2-methylimidazole were stirred, and the temperature was raised to 60° C. for 1-2 hours;

[0033] 3) The temperature of the reaction solution in step 1) is raised to reflux, and the solution in step 2) is added dropwis...

Embodiment 2

[0038] The preparation method of the modified resin composition is the same as in Example 1.

[0039] 2. Preparation of self-grinding non-toxic ship bottom antifouling coating

[0040] 1) Preparation of materials: Weigh 26 parts of modified resin composition, 10 parts of solvent, 2.8 parts of nano-sized cuprous oxide, 5 parts of hydroxyethyl cellulose, 0.3 part of hydroxypropyl guar gum, 2 parts of iron red, 4 parts of Glauber's salt Part; described solvent is made up of the composition of toluene, butanone and isopropyl acetate, and weight ratio is toluene: butanone: n-octanol=5:2:1;

[0041] 2) Preparation steps: Add the solvent in the formula amount into the high-speed disperser, then add the modified resin composition and nano-sized cuprous oxide and stir for 10 minutes; then add hydroxyethyl cellulose and hydroxypropyl guar gum and stir for 10 hours ; Finally, add iron red and Glauber's salt to disperse evenly, which is obtained from grinding non-toxic ship bottom antifoul...

Embodiment 3

[0043] The preparation method of the modified resin composition is the same as in Example 1.

[0044] 2. Preparation of self-grinding non-toxic ship bottom antifouling coating

[0045] 1) Preparation of materials: Weigh 31 parts of modified resin composition, 13 parts of solvent, 3.1 parts of nano-sized cuprous oxide, 6 parts of hydroxyethyl cellulose, 0.8 parts of hydroxypropyl guar gum, 3 parts of iron red, 6 parts of Glauber's salt Part; described solvent is made up of the composition of toluene, butanone and isopropyl acetate, and weight ratio is toluene: butanone: n-octanol=5:2:1;

[0046] 2) Preparation steps: Add the solvent in the formula amount into the high-speed disperser, then add the modified resin composition and nano-sized cuprous oxide and stir for 10 minutes; then add hydroxyethyl cellulose and hydroxypropyl guar gum and stir for 14 hours ; Finally, add iron red and Glauber's salt to disperse evenly, which is obtained from grinding non-toxic ship bottom antif...

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Abstract

The invention belongs to the technical field of paint, and particularly relates to self-grinding non-toxic antifouling paint for hull bottoms and a preparation method of the self-grinding non-toxic antifouling paint. The self-grinding non-toxic antifouling paint comprises, by weight, 26-31 parts of modified resin compositions, 10-13 parts of solvent, 2.8-3.1 parts of nanoscale cuprous oxide, 5-6 parts of hydroxyethyl celluloses, 0.3-0.8 part of hydroxypropyl guar gum, 2-3 parts of iron oxide red and 4-6 parts of mirabilite. The antifouling effect of the self-grinding non-toxic antifouling paint lasts for 24 months, the nanoscale cuprous oxide has slow release effect in later period, and accordingly, the self-grinding non-toxic antifouling paint has a long-acting antifouling function.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a self-grinding non-toxic ship bottom antifouling coating and a preparation method thereof. Background technique [0002] Anti-fouling paint is a kind of paint applied on the bottom of the ship. It is generally applied on the anti-rust paint on the bottom of the ship and is the outermost layer. The main function is to gradually release the poisonous material through the seepage, diffusion or hydrolysis of the poisonous material in the paint film, so as to prevent marine organisms from attaching to the bottom of the ship. After marine organisms are attached to the bottom of the ship, the resistance will be increased, the speed will be reduced, the fuel consumption will increase, and the mechanical wear will increase. The adhesion of marine organisms will also destroy the paint film and accelerate the corrosion of the steel plate. It increases the number and time of ship mainten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/20C09D5/16C09D7/12C08F220/44C08F212/08C08F220/14
CPCC08F220/44C08K2003/2248C08K2003/2272C08K2201/011C08L2205/02C08L2205/035C09D5/1618C09D5/1668C09D5/1687C09D133/20C08L1/284C08L5/00C08L5/16C08K13/06C08K9/12C08K3/22C08K5/3445C08F212/08C08F220/14
Inventor 戴仁兴
Owner CHANGZHOU TONGFENG PAINT
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