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A kind of organosilicon modified zinc acrylate/zinc pyrithione composite antifouling coating and its preparation method and application

A technology of zinc pyrithione and zinc acrylate, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve problems such as unstable antifouling performance, polluting the atmosphere, and destroying marine ecology, achieving Excellent antifouling and antibacterial performance, low VOC emission, and strong inhibitory effect

Active Publication Date: 2020-07-24
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a low surface energy self-polishing water-based zinc acrylate resin / Zinc Pyridinethione Composite Antifouling Paint

Method used

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  • A kind of organosilicon modified zinc acrylate/zinc pyrithione composite antifouling coating and its preparation method and application
  • A kind of organosilicon modified zinc acrylate/zinc pyrithione composite antifouling coating and its preparation method and application
  • A kind of organosilicon modified zinc acrylate/zinc pyrithione composite antifouling coating and its preparation method and application

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Embodiment 1

[0023] In the present embodiment, the organosilicon-modified zinc acrylate / zinc pyrithione composite antifouling coating comprises the following steps in terms of mass:

[0024] 1. The preparation of organosilicon-modified zinc acrylate emulsion: wash the acrylate monomer 3 times with 5% NaOH solution and deionized water successively to obtain the refined monomer; weigh 19g methyl methacrylate (Sinopharm Group Chemical Reagent Co., Ltd. , AR), 14.68g n-butyl acrylate (Sinopharm Chemical Reagent Co., Ltd., AR) were mixed uniformly to obtain a monomer mixture, and 1.73g sodium lauryl sulfate (Sinopharm Chemical Reagent Co., Ltd., CP) was weighed and dissolved in 5g deionized water (self-made) obtains emulsifying agent solution, takes by weighing 0.17g potassium persulfate (Sinopharm Group Chemical Reagent Co., Ltd., AR) and is dissolved in 2.5g deionized water to obtain initiator aqueous solution; Get 2 / 3 monomer mixed solution , 1 / 2 of the emulsifier solution, 0.43g of acrylic ...

Embodiment 2

[0031] In the present embodiment, the organosilicon-modified zinc acrylate / zinc pyrithione composite antifouling coating comprises the following steps in terms of mass:

[0032] 1. Preparation of organosilicon-modified zinc acrylate emulsion: wash acrylate monomers with 5% NaOH solution and deionized water for 3 times to obtain refined monomers; weigh 18.6g methyl methacrylate, 18.6g n-butyl acrylate ester, 6.43 glycidyl methacrylate mixed evenly to obtain a monomer mixture, weighed 1.50g polyethylene glycol octylphenyl ether dissolved in 5g deionized water to obtain an emulsifier solution, weighed 0.17g ammonium persulfate dissolved in 2.5g deionized water to obtain initiator aqueous solution; take 2 / 3 of the monomer mixture, 1 / 2 of the emulsifier solution, 0.7g of acrylic acid and 24.5g of deionized water, mix them and pre-emulsify for 40min with magnetic stirring to obtain a pre-emulsion ; Take 1 / 3 of the pre-emulsion and add 1.48g of dodecyltrimethoxysilane, magnetically s...

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Abstract

The invention discloses organic silicon modified zinc acrylate / zinc pyrithione composite antifouling paint, and a preparation method and application thereof. The composite antifouling paint provided by the invention comprises a component A and a component B; the component A mainly comprises an organic silicon modified zinc acrylate emulsion, a defoaming agent, a wetting agent, an anti-flash rust auxiliary agent and the like; and the component B comprises zinc pyrithione, nano titanium dioxide and the like. During construction and coating, the two components are ground together according to a certain proportion to obtain the environment-friendly antifouling paint with low volatile organic compound (VOC) content, self-polishing property and low surface energy property. The paint has the self-polishing property through introduction of zinc acrylate, the paint has the low surface energy property through introduction of organic silicon, and the paint has excellent antifouling and bacteriostatic properties through introduction of zinc pyrithione. Compared with an existing contact-type heavy metal-type antifouling paint, the composite paint disclosed by the invention has obvious advantages.

Description

technical field [0001] The invention belongs to an antifouling coating for ships, offshore operation platforms and pipelines, and in particular relates to a composite antifouling coating of organosilicon-modified zinc acrylate and zinc pyrithione, a preparation method and application thereof. Background technique [0002] Since the 21st century, marine resources have become a strategic resource that countries around the world have paid more attention to. In the historical process of developing and utilizing marine resources, human beings have been plagued by the problem of marine biofouling and biofouling. urgent task. Traditional antifouling coatings are mostly solvent-based coatings with high VOC content, and methods such as pesticides and heavy metal salt antifouling agents are used to reduce marine biofouling, which pollutes the atmosphere, destroys the marine ecological environment, high cost, and poor antifouling performance. A series of problems such as poor stabilit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/12C09D5/16C09D5/14C09D7/61
CPCC08K2003/2241C08K2201/011C09D5/14C09D5/1662C09D5/1687C09D133/068C09D143/04C08K5/0091C08K3/22
Inventor 魏铭叶桐代校军姚久提李博
Owner WUHAN UNIV OF TECH
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