Matrix resin having self-polishing performance and self-polishing antifouling coating prepared by same

A technology of matrix resin and antifouling coatings, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve problems such as marine environmental hazards, achieve marine environment friendly, excellent antifouling performance, good Effect of self-polishing properties

Active Publication Date: 2015-10-14
MARINE CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its purpose is to reduce the ship's navigation resistance and save fuel consumption. However, in order to achieve a good antifouling effect, traditional antifouling coatings have added a large amount of organic tin, DDT and other substances harmful to the marine environment, causing serious damage to the marine environment. the harm of

Method used

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  • Matrix resin having self-polishing performance and self-polishing antifouling coating prepared by same
  • Matrix resin having self-polishing performance and self-polishing antifouling coating prepared by same
  • Matrix resin having self-polishing performance and self-polishing antifouling coating prepared by same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] a. Preparation of small molecule zinc acrylate monomer (a1)

[0037] Add the stoichiometric solvent and zinc oxide into a four-necked flask equipped with a stirring device, a condenser tube, a dropping funnel, and a thermometer, raise the temperature to 75-85°C, and mix one saturated organic acid and another unsaturated organic carboxyl Mix the acid and a certain amount of deionized water evenly according to the metering ratio, add dropwise to the four-necked bottle, add dropwise for 2 to 3 hours, keep warm until the mixed solution is clear and transparent, cool down and discharge, add solvent, and control the small molecule The solid content of the zinc acrylate monomer a1 is 30-55%, and the small molecule zinc acrylate monomer (a1) of the present invention is obtained.

[0038] In the process of preparing the small-molecule zinc acrylate monomer (a1), the molar ratio of zinc oxide to one saturated organic acid and another unsaturated organic carboxylic acid is 1:1:1.

...

Embodiment 1

[0051] a. Small molecule zinc acrylate monomer a1-1

[0052] In a four-necked flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, add 240 parts of xylene and 81.4 parts of zinc oxide under stirring, and heat to 80°C. A mixture of 86.1 parts of methacrylic acid, 122 parts of benzoic acid and 15 parts of water was added dropwise from the dropping funnel for 3 hours. Keep warm until the mixture is clear and transparent. The temperature was lowered, and 20 parts of solvent xylene was added to adjust the solid content to obtain the small molecule zinc acrylate monomer a1-1. The solid content of a1-1 was measured to be 48.1%.

[0053] b. Self-polishing matrix resin A-1

[0054] In a four-neck flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, add 100 parts of xylene and 10 parts of ethyl acrylate under stirring, and heat to 105°C. From the dropping funnel, add 25 parts of methyl methacrylate, 20 parts o...

Embodiment 2

[0056] a. Small molecule zinc acrylate monomer a1-2

[0057] In a four-neck flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, add 200 parts of xylene and 81.4 parts of zinc oxide under stirring, and heat to 80°C. A mixture of 72.1 parts of acrylic acid, 122 parts of benzoic acid and 20 parts of water was added dropwise from the dropping funnel for 3 hours. Keep warm until the mixture is clear and transparent. The temperature was lowered, and 40 parts of xylene was added to adjust the solid content to obtain the small molecule zinc acrylate monomer a1-2. The solid content of a1-2 was measured to be 48.1%.

[0058] b. Self-polishing base resin A-2

[0059] In a four-neck flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, add 100 parts of xylene and 10 parts of ethyl acrylate under stirring, and heat to 105°C. From the dropping funnel, drop 25 parts of methyl methacrylate, 20 parts of ethyl acrylat...

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Abstract

The invention relates to a matrix resin having self-polishing performance and an environmentally-friendly type self-polishing antifouling coating prepared by the same; the matrix resin contains a functional group, so that the matrix resin has good self-polishing performance; according to the antifouling coating prepared by the matrix resin, the functional group-containing matrix resin on the surface of an antifouling coating layer is subjected to a hydrolysis reaction with weak alkaline seawater to generate a hydrophilic resin and is gradually dissolved in the seawater, at the same time, a coated antifouling agent is released, denudation of a surface layer is achieved, a newly-exposed coating layer continues to undergo a hydrolysis reaction with the seawater, and finally, the self-polishing effect of layer-by-layer stripping of the coating layers is achieved. The antifouling coating prepared by the matrix resin has the characteristics of controllable self-polishing performance, long anti-fouling efficiency period, excellent antifouling performance and the like.

Description

technical field [0001] The invention relates to a matrix resin with self-polishing performance and an environment-friendly self-polishing antifouling coating prepared by using the resin. The matrix resin contains functional groups, so it has good self-polishing performance. The antifouling coating prepared by using the matrix resin Coatings, the matrix resin containing functional groups on the surface of the antifouling coating undergoes a hydrolysis reaction with weakly alkaline seawater to generate a hydrophilic resin, which gradually dissolves into seawater, and at the same time the coated antifouling agent Released to realize the "denudation" of the surface layer, the newly exposed coating continues to undergo hydrolysis reaction with seawater, and finally realizes the self-polishing effect of "layer peeling" of the coating. The antifouling paint prepared with the matrix resin has the characteristics of controllable self-polishing performance, long antifouling period, exce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D133/10C09D143/04C09D5/16C09D7/12
Inventor 于雪艳陈正涛王科张华庆丛巍巍肖玲桂泰江
Owner MARINE CHEM RES INST
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