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Organic silicon antifouling coating containing PEG (Polyethylene Glycol)/quaternary ammonium salt and preparation method of organic silicon antifouling coating

A technology of antifouling coatings and quaternary ammonium salts, applied in antifouling/underwater coatings, biocide-containing paints, coatings, etc., can solve the problems of performance changes, low chemical activity of quaternary ammonium salts, etc., and achieve low surface energy , good anti-fouling performance, excellent anti-protein effect

Active Publication Date: 2018-04-24
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the chemical activity of quaternary ammonium salt is low, and when the alkyl group on the quaternary ammonium salt is replaced by siloxane, its performance changes greatly

Method used

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  • Organic silicon antifouling coating containing PEG (Polyethylene Glycol)/quaternary ammonium salt and preparation method of organic silicon antifouling coating
  • Organic silicon antifouling coating containing PEG (Polyethylene Glycol)/quaternary ammonium salt and preparation method of organic silicon antifouling coating
  • Organic silicon antifouling coating containing PEG (Polyethylene Glycol)/quaternary ammonium salt and preparation method of organic silicon antifouling coating

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Embodiment one: the organosilicon antifouling paint containing polyethylene glycol / quaternary ammonium salt provided in this embodiment and preparation method thereof are characterized in that, it comprises the following steps:

[0043] (1) Preparation of composition 1:

[0044]Weigh 16.75g of polyethylene glycol diallyl ether with a number average molecular weight of 500, 60g of toluene, after mixing evenly, add the mixed solution together with 0.053g of Karstedt catalyst to a reflux condenser and a constant pressure dropping funnel In a four-necked round-bottomed flask with a nitrogen gas guide tube and a mechanical stirrer, the temperature was raised to 85° C. under a nitrogen atmosphere, and the temperature was maintained at reflux for 10 minutes. Weigh 75g of hydrogen-terminated silicone oil with a number average molecular weight of 12,500 and 40g of toluene, mix them evenly, pour them into a constant pressure dropping funnel, and add them to a four-necked flask wi...

Embodiment 2

[0056] Embodiment two: Please change a catalyst. Change to polyethylene glycol diallyl ether and hydrogen-terminated silicone oil with a different molecular weight.

[0057] The preparation method and product of organic fluorosilicon biomimetic antifouling resin provided in this example, its components and steps are roughly the same as Example 1, the difference is:

[0058] The amount of trimethoxysilylpropyl-N,N,N-trimethylammonium chloride used in the preparation was 0.616 g.

example 3

[0059] Example 3: Please change a catalyst. Change to polyethylene glycol diallyl ether and hydrogen-terminated silicone oil with a different molecular weight.

[0060] The preparation method and product of organic fluorosilicon biomimetic antifouling resin provided in this example, its components and steps are basically the same as Example 2, the difference is:

[0061] The catalyst used in the preparation process is dibutyltin dilaurate, and the quaternary ammonium compound used in the preparation process is tetradecyldimethyl (3-trimethoxysilylpropyl) ammonium chloride.

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Abstract

The invention relates to organic silicon antifouling coating containing PEG (Polyethylene Glycol) / quaternary ammonium salt and a preparation method of the organic silicon antifouling coating. According to the organic silicon antifouling coating, advantages of a self-assembled PEG monomolecular layer or a cross-linked PEG hydrogel layer and quaternary ammonium salt are combined; the quaternary ammonium salt is introduced into an organic silicon semi-interpenetrating cross-linked network antifouling coating layer containing the PEG to obtain the organic silicon antifouling coating containing thePEG (Polyethylene Glycol) / quaternary ammonium salt. The coating provided by the invention has the advantages of excellent protein resistance, algae resistance, bacterium resistance and the like, andhas a wide application prospect in the field of marine fouling prevention.

Description

technical field [0001] The present invention relates to a kind of organosilicon antifouling coating containing polyethylene glycol (PEG) / quaternary ammonium salt and preparation method thereof, Background technique [0002] With the development of human activities in the ocean and the deepening of marine research, the problem of marine biofouling has become increasingly serious, and it has become a worldwide problem, causing huge losses every year. Taking marine ships as an example, the attachment of marine fouling organisms will accelerate the destruction of the hull surface and increase the roughness of the hull surface, thereby increasing fuel consumption during navigation, reducing navigation speed, increasing maintenance costs, and shortening the service life of the hull. According to research statistics, if the anti-fouling coating is not applied, the fuel consumption of the hull will increase by nearly 40% after six months. The International Maritime Organization (IM...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D183/12C09D5/16C09D7/63C08G77/46
CPCC08G77/46C08L2205/02C08L2205/04C08L2312/00C09D5/1675C09D5/1687C09D183/04C08L83/12C08K5/544C08K5/19C08K5/07C08K5/5419
Inventor 孙小英林旭施利毅杭建忠金鹿江
Owner SHANGHAI UNIV
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