Preparation and application of self-polishing antifouling coating matrix resin

A technology of self-polishing resin and antifouling coatings, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve the problems of increasing the weight of structures in the sea, increasing maintenance costs, blocking water flow channels, etc., to achieve The effect of prolonging the antifouling period, simple and convenient construction, and easy maintenance

Active Publication Date: 2015-05-27
MARINE CHEM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Marine biofouling will increase the weight of structures in the sea, block water flow channels, and even cause surface corrosion, which will significantly increase maintenance costs and cause huge economic losses

Method used

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  • Preparation and application of self-polishing antifouling coating matrix resin
  • Preparation and application of self-polishing antifouling coating matrix resin
  • Preparation and application of self-polishing antifouling coating matrix resin

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] Preparation of self-polishing resin (A)

[0032] Add the stoichiometric organic mixed solvent and part of the a3 monomer into a four-neck flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, raise the temperature to 100°C, and mix the a1 monomer, a2 monomer and the remaining a3 Mix monomers and initiators evenly according to the metering ratio, drop them into a four-necked bottle, add them dropwise for 3 to 4 hours, keep warm for 2 hours, then add initiator and solvent, keep warm for 2 hours to cool down after adding The material is discharged to obtain the self-polishing resin of the present invention.

[0033] In the process of preparing the self-polishing resin, the dosage ratio of adding the initiator twice is 2-5:1.

[0034] In the process of preparing the self-polishing resin, the dosage ratio of adding solvent twice is 5-10:1.

[0035] In the process of preparing the self-polishing resin, the dosage ratio of adding the a3 mo...

Embodiment 1

[0044] Example 1 (resin A-1)

[0045] In a four-neck flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, add 25 parts of propylene glycol methyl ether, 70 parts of xylene and 5 parts of ethyl acrylate under stirring, and heat to 100°C. A mixture of 35 parts of methyl methacrylate, 25 parts of ethyl acrylate, 5 parts of trifluoroethyl acrylate, 30 parts of trimethylsilyl acrylate, and 2.5 parts of azobisisobutyronitrile was added dropwise from the dropping funnel. Liquid 4 hours. After the dropwise addition, keep the temperature for 2 hours, then add 0.5 parts of azobisisobutyronitrile and 5 parts of xylene, keep the temperature for another 2 hours, then cool down and discharge. Fluorine-containing silyl acrylate resin A-1 with self-polishing properties was obtained.

Embodiment 2

[0046] Example 2 (resin A-2)

[0047] In a four-neck flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, add 25 parts of propylene glycol methyl ether, 70 parts of xylene and 5 parts of ethyl acrylate under stirring, and heat to 100°C. From the dropping funnel, add dropwise a mixture of 35 parts of methyl methacrylate, 20 parts of ethyl acrylate, 10 parts of trifluoroethyl acrylate, 30 parts of triisopropylsilyl acrylate, and 2.5 parts of azobisisobutyronitrile. Mix the liquid for 4 hours. After the dropwise addition, keep the temperature for 2 hours, add 0.5 parts of azobisisobutyronitrile and 5 parts of xylene, and keep the temperature for another 2 hours, then cool down and discharge. Fluorine-containing silyl acrylate resin A-2 with self-polishing properties was obtained.

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PUM

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Abstract

A self-polishing antifouling coating is characterized in that the self-polishing antifouling coating includes a fluorine-containing silyl acrylate matrix resin (A) having a self-polishing performance, an antifouling agent (B), a pigment filler (C), an assistant (D) and a solvent (E). The antifouling coating which has a good polishing performance and a low surface performance has the characteristics of long antifouling period, good antifouling performance, excellent polishing resistance reduction performance and the like. The antifouling coating which contains no toxic substances comprising tin, DDT or the like has the characteristics of friendliness to the sea environment, simple and convenient construction, easy maintenance and the like, and can satisfy the demands on the long-acting antifouling coating of subsea facilities.

Description

technical field [0001] The invention relates to the preparation and application of a self-polishing antifouling paint base resin. The base resin has good polishing performance and low surface performance. The antifouling paint prepared with the base resin has long antifouling period and excellent antifouling performance. , Polishing drag reduction performance and other characteristics. Background technique [0002] Marine biofouling will increase the weight of structures in the sea, block water flow channels, and even cause surface corrosion, which will significantly increase maintenance costs and cause huge economic losses. Since ancient times, humans have taken various means to prevent the adhesion of marine organisms. After continuous attempts, coating marine antifouling coatings containing antifouling agents has become the most effective, economical and feasible method to solve marine biofouling. [0003] However, with the increasing dependence of human beings on the oc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/12C09D5/16C08F220/14C08F220/18C08F220/22C08F230/08
Inventor 于雪艳桂泰江陈正涛王科肖玲张华庆丛巍巍
Owner MARINE CHEM RES INST CO LTD
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