Preparation and application of self-polishing antifouling coating matrix resin

A technology of self-polishing resin and antifouling paint, applied in antifouling/underwater paints, coatings, paints containing biocides, etc. The effect of prolonging the antifouling period, simple and convenient construction and easy maintenance

Active Publication Date: 2013-06-05
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 a stoichiometric organic mixed solvent and part of a3 monomer into a four-necked flask equipped with a stirring device, condenser, dropping funnel, and thermometer. The temperature is raised to 100℃, and the a1 monomer, a2 monomer and the remaining a3 The monomers and initiators are mixed evenly according to the metering ratio, and they are added dropwise to a four-necked bottle. Add dropwise for 3 to 4 hours, keep it for 2 hours, then add initiator and solvent, and keep it for 2 hours after the addition is complete. 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 amount ratio of the two initiators added is 2-5:1.

[0034] In the process of preparing the self-polishing resin, the amount ratio of the two added solvents is 5-10:1.

[0035] In the process of preparing the self-polishing resin, the amount ratio of 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. From the dropping funnel, drop a mixture consisting 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. Liquid for 4 hours. After the dripping is completed, keep it warm for 2 hours, then add 0.5 parts of azobisisobutyronitrile and 5 parts of xylene. After keeping the temperature for another 2 hours, cool down and discharge. The fluorine-containing silyl acrylate resin A-1 with self-polishing properties was prepared.

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. Add 35 parts methyl methacrylate, 20 parts ethyl acrylate, 10 parts trifluoroethyl acrylate, 30 parts triisopropylsilyl acrylate, 2.5 parts azobisisobutyronitrile from the dropping funnel. Mix the liquid for 4 hours. After the dripping is completed, 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 and discharge. A fluorine-containing silyl acrylate resin A-2 with self-polishing properties was prepared.

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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 coating matrix resin. The matrix resin has good polishing performance and low surface performance. The antifouling coating prepared by the matrix resin has a long antifouling period and excellent antifouling performance. , Excellent performance of polishing and drag reduction. Background technique [0002] Marine biological fouling can increase the weight of structures in the sea, block water flow channels, and even cause surface corrosion, which significantly increases maintenance costs and brings huge economic losses. Since ancient times, humans have adopted various methods to prevent the adhesion of marine organisms. After continuous attempts, coating marine antifouling paints containing antifouling agents has become the most effective, economical and feasible method to solve marine organisms fouling. [0003] However, as human beings rely more and more on the ocean, ...

Claims

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Application Information

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Patent Type & Authority Applications(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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