Aqueous self-polishing antifouling coating substrate resin and antifouling coating prepared from same

A technology of antifouling coatings and matrix resins, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., to meet the needs of antifouling, easy to maintain, and friendly to the marine environment

Inactive Publication Date: 2012-08-01
MARINE CHEM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research on waterborne self-polishing antifouling coatings is still blank

Method used

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  • Aqueous self-polishing antifouling coating substrate resin and antifouling coating prepared from same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The water-based self-polishing resin is prepared by a two-step process, the first step is to prepare a divalent metal ion-containing ethylenically unsaturated monomer (a1) CH 3 -COO-Zn-COO-(C 2 h 5 ) 2 Under the action of initiator benzoyl peroxide, with other metal-free ethylenically unsaturated monomer (a2)CH 3 OCO-CH(R 3 )=CH 2 A polymer is prepared by copolymerization, which is reacted with one or two basic compounds, and finally made into a water-based resin. Specific steps are as follows:

[0036] 1) Preparation of ethylenically unsaturated monomer (a1) containing a divalent metal ion

[0037] Weigh zinc or copper metal oxides or hydroxides, organic acids containing unsaturated double bonds such as acrylic acid with a molar ratio of 1:2, respectively. Add the stoichiometric organic mixed solvent and the weighed metal oxide or hydroxide into a four-necked bottle equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, and raise the...

Embodiment 2

[0045] 1. Preparation of metal-containing monomer a1-1

[0046] In a four-necked flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, 70 parts by mass of propylene glycol methyl ether and 40 parts by mass of zinc oxide were added under stirring, and heated to 80°C. A mixture of 45 parts by mass of methacrylic acid, 30 parts by mass of acrylic acid and 20 parts by mass of water was added dropwise from the dropping funnel for 3 hours. Keep warm until the mixture is clear and transparent. The metal-containing monomer a1-1 was prepared.

[0047] 2. Preparation of Waterborne Self-polishing Resin 1

[0048] In a four-neck flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, 52 parts by mass of propylene glycol methyl ether, 30 parts by mass of xylene and 5 parts of ethyl acrylate were added under stirring, and heated to 100°C. 25 parts by mass of methyl methacrylate, 45 parts by mass of ethyl acrylate, 5 p...

Embodiment 3

[0050] 1. Preparation of metal-containing monomer a1-2

[0051] In a four-necked flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, add 25 parts by mass of n-butanol, 75 parts by mass of xylene and 40 parts by mass of zinc oxide under stirring, and heat to 80°C. A mixture of 45 parts by mass of methacrylic acid, 30 parts by mass of acrylic acid and 20 parts by mass of water was added dropwise from the dropping funnel for 3 hours. Keep warm until the mixture is clear and transparent. The metal-containing monomer a1-2 was prepared.

[0052] 2. Preparation of water-based self-polishing resin 2

[0053] In a four-neck flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, add 52 parts by mass of propylene glycol methyl ether, 30 parts by mass of xylene and 5 parts by mass of ethyl acrylate under stirring, and heat to 100°C. From the dropping funnel, drop by 25 parts by mass of methyl methacrylate, 45 part...

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Abstract

The invention provides aqueous self-polishing antifouling coating substrate resin and an antifouling coating prepared from the same. The resin is prepared with a simple preparation method, and does not contain toxic agents such as DDT (Dichlorodiphenyltrichloroethane), organic tin and the like. The self-polishing antifouling coating is aqueous, has the characteristics of low VOC (Volatile Organic Compound) content, sea environmental friendliness, easiness and convenient for construction, easiness for maintaining and the like, and can be applied to a special substrate surface; and moreover, the substrate resin has self-polishing performance, so that the dissolution rate of an organic antifouling agent in seawater is controlled, the antifouling period can be prolonged, and the antifouling requirement is met.

Description

technical field [0001] The invention relates to the field of antifouling coatings, in particular to a water-based self-polishing antifouling coating matrix resin and an antifouling coating prepared with the resin. Background technique [0002] Since human beings entered the ocean, they have been fighting unremittingly against the harm of marine adherent organisms to ships and marine facilities. Among the methods to solve adherent biological fouling, the use of antifouling coatings is the most widely and most effective. Previous antifouling coatings were all solvent-based systems. Solvent-based coatings affect the health of operators during the coating process, and there are safety hazards at the same time. With the continuous improvement of people's awareness of environmental protection, it is an inevitable trend for antifouling coatings to be environmentally friendly and water-based. [0003] Foreign countries began to study water-based marine antifouling coatings in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F230/00C08F220/14C08F220/18C08F220/28C08F220/32C08F220/34C08F220/60C09D143/00C09D5/16C09D7/12
Inventor 于雪艳陈正涛王科余浩杰肖玲桂泰江
Owner MARINE CHEM RES INST CO LTD
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