A kind of anti-corrosion hydrophobic antibacterial coating in seawater and preparation method thereof

An antibacterial coating and anti-corrosion technology, applied in anti-corrosion coatings, coatings, anti-fouling/underwater coatings, etc., can solve the problems of short action time and poor corrosion resistance, and achieve enhanced anti-corrosion performance and good antibacterial properties The effect of ability, long adaptive life

Active Publication Date: 2021-12-07
ZHEJIANG YUTONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical defects of poor corrosion resistance and short action time of existing coatings in seawater, the present invention provides an anti-corrosion, hydrophobic and antibacterial coating in seawater and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Preparation of modified mercaptobenzothiazole-mesoporous silica / silicone rubber foam

[0030] Step 1: Add 0.83 g of 2-hydroxyphosphonoacetic acid to 10 g of α,ω-dihydroxypolysiloxane, stir in a water bath at 30°C for 3 hours, and then add 1.7 g of methylhydrogen to the mixture Silicone oil and 0.2g of 2-methyl-3-butyn-2-ol were stirred at room temperature for 1h to obtain the base rubber; then 0.4g of chloroplatinic acid was added to the system and stirred rapidly for 3min, then the mixed solution was placed in the mold After 24 hours, carry out dehydrogenation foaming and cross-linking curing; after the curing is completed, the obtained sample is kept in a drying oven at 50°C for 6 hours, and then the dried sample is crushed by a pulverizer to a size above 50 mesh to obtain a doped silicone rubber foam.

[0031] Step 2: Disperse 8g of doped silicone rubber foam in 133.3ml of water by ultrasonication for 8min, then add 4.96g of hexadecyltrimethylammonium chloride to...

Embodiment 2

[0039] Step 1: Add 1.3 g of 2-hydroxyphosphonoacetic acid to 13 g of α,ω-dihydroxypolysiloxane, stir in a water bath at 40°C for 2 hours, and then add 1.63 g of methylhydrogen to the mixture Silicone oil and 0.22g of 2-methyl-3-butyn-2-ol were stirred at room temperature for 2h to obtain the base rubber; then 0.43g of chloroplatinic acid was added to the system and stirred rapidly for 4min, then the mixed solution was placed in the mold After 30 hours, carry out dehydrogenation foaming and cross-linking curing; after the curing is completed, the obtained samples are kept in a drying oven at 60°C for 8 hours, and then the dried samples are crushed by a pulverizer to more than 50 mesh to obtain doped silicone rubber foam.

[0040] Step 2: Ultrasonically disperse 10.4g of doped silicone rubber foam in 173.3ml of water for 6min, then add 8.32g of hexadecyltrimethylammonium chloride to the suspension at room temperature, stir for 6min and add dropwise to the solution Mixture of 160...

Embodiment 3

[0048] Step 1: Add 1.09 g of 2-hydroxyphosphonoacetic acid to 12 g of α,ω-dihydroxypolysiloxane, stir in a water bath at 38°C for 2.5 hours, and then add 1.9 g of methyl-containing polysiloxane to the mixture successively. Hydrogen silicone oil and 0.24g of 2-methyl-3-butyn-2-ol were stirred at room temperature for 2h to obtain the base rubber; then 0.47g of chloroplatinic acid was added to the system and stirred rapidly for 5min, then the mixed solution was placed in the mold After 27 hours, carry out dehydrogenation foaming and cross-linking curing; after the curing is completed, the obtained sample is kept in a drying oven at 53°C for 7.5 hours, and then the dried sample is crushed by a pulverizer to more than 50 mesh to obtain a doped silicone rubber foam .

[0049] Step 2: Disperse 9.6g of doped silicone rubber foam in 160ml of water by ultrasonication for 7min, then add 6.24g of hexadecyltrimethylammonium chloride to the suspension at room temperature, stir for 7min and ...

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Abstract

The invention belongs to the technical field of coating preparation, and in particular relates to an anti-corrosion, hydrophobic and antibacterial coating in seawater and a preparation method thereof. The preparation method comprises: using α,ω-dihydroxypolysiloxane and methyl hydrogen-containing silicone oil as the The raw material is doped with 2-hydroxyphosphonoacetic acid to prepare silicone rubber foam, and then mesoporous silica is prepared on the foam and modified with γ-mercaptopropyltrimethoxysilane, and then mercaptobenzothiazole is loaded to obtain a composite material, Then use the composite material, vinyl resin, and 2-phenylimidazole as raw materials to treat and coat the surface of the substrate, and then spray a layer of CdS-ZnO on the surface to obtain the coating of the present invention. The anti-corrosion hydrophobic and anti-bacterial coating of the present invention has good hydrophobic and anti-bacterial performance and corrosion resistance, and has an excellent anti-corrosion effect in seawater.

Description

technical field [0001] The invention belongs to the technical field of paint preparation, and in particular relates to an anti-corrosion, hydrophobic and antibacterial coating in seawater and a preparation method thereof. Background technique [0002] Nowadays, iron, aluminum and other metals and their composite materials have become indispensable and important basic materials in national production and life, but they are extremely vulnerable to various corrosions caused by the surrounding medium during long-term use. For metal corrosion, there are different classification methods according to the corrosion area shape and corrosion process; the former can be divided into regional corrosion and general corrosion; the latter can be divided into physical corrosion, chemical corrosion and electrochemical corrosion. According to the causes and methods of corrosion of existing metals, there are four main ways to prevent metal corrosion: changing the internal structure of metals, e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/14C09D5/08C09D201/00C09D183/08C09D183/05C09D1/00C09D7/62C09D7/63
CPCC08L2205/02C08L2205/03C09D1/00C09D5/08C09D5/14C09D201/00C09D7/62C09D7/63C08L83/08C08L83/04C08K13/06C08K9/06C08K7/26C08K5/47C08K5/3445
Inventor 王从兵
Owner ZHEJIANG YUTONG NEW MATERIAL
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