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Two-component water-based hydroxyl acrylic coating

A hydroxyacrylic, two-component technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problem of coating film water resistance, corrosion resistance not meeting the ideal requirements, poor coating regularity, cross-linking Low density and other problems, to achieve excellent water resistance and chemical corrosion resistance, good water resistance, high carbon-fluorine bond energy effect

Inactive Publication Date: 2016-03-02
ANHUI JINDUN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Water-based hydroxyacrylic coatings have the advantages of non-toxic, odorless, non-flammable, non-polluting, energy-saving, etc., and more and more people pay attention to them. One-component polyurethane coatings have low solid content, low cross-linking density, and poor coating regularity. The component water-based hydroxy acrylic coating is cured by cross-linking with polyisocyanate, which increases the cross-linking density of the coating and significantly improves the performance, but the water resistance and corrosion resistance of the coating film are still not up to the ideal requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A two-component water-based hydroxy acrylic coating composed of component A and component B, the weight ratio of component A to component B is 1:1;

[0018] The raw materials of component A include 80 parts by weight of modified hydroxy acrylic resin, 5 parts of water-based hydroxy fluorosilicone acrylic resin, 15 parts of water-based nano-alumina dispersion, 5 parts of water-based nano-silica dispersion, and ethylene dichloride 2 parts of ethyl alcohol acetate, BYK3063 parts of leveling agent, 0.2 parts of dibutyltin dilaurate catalyst, 5 parts of xylene;

[0019] The raw materials of component B include, by weight, 10 parts of hexamethylene diisocyanate trimer, 5 parts of HDI biuret, and 20 parts of diluent.

Embodiment 2

[0021] A two-component water-based hydroxy acrylic paint, consisting of component A and component B, the weight ratio of component A to component B is 1:3;

[0022] The raw materials of component A include, by weight, 40 parts of modified hydroxy acrylic resin, 20 parts of water-based hydroxy fluorosilicone acrylic resin, 5 parts of water-based nano-alumina dispersion, 10 parts of water-based nano-silica dispersion, and ethylene oxide 6 parts of ethyl alcohol acetate, leveling agent BYK3061 parts, catalyst 0.8 parts of dibutyltin dilaurate, 1 part of xylene;

[0023] The raw materials of component B include 20 parts by weight of hexamethylene diisocyanate trimer, 1 part of HDI biuret, and -30 parts of diluent.

Embodiment 3

[0025] A two-component water-based hydroxy acrylic paint, composed of component A and component B, the weight ratio of component A to component B is 1:1.2;

[0026] The raw materials of component A include by weight: 45 parts of modified hydroxy acrylic resin, 8 parts of water-based hydroxy fluorosilicone acrylic resin, 6 parts of water-based nano-alumina dispersion, 6 parts of water-based nano-silica dispersion, and ethylene oxide 2.3 parts of ethyl alcohol acetate, 1.2 parts of leveling agent BYK306, 0.3 parts of dibutyltin dilaurate catalyst, 1.4 parts of xylene;

[0027] The raw materials of component B include 15 parts by weight of hexamethylene diisocyanate trimer, 1.2 parts of HDI biuret, and 21 parts of propylene glycol diacetate.

[0028] The acid value of the modified hydroxy acrylic resin is 30 mgKOH / g.

[0029] The pigment and filler are composed of rutile titanium dioxide, ultrafine talc, ultrafine precipitated barium sulfate, ultrafine mica powder, and organic pigments. ...

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Abstract

The invention discloses a two-component water-based hydroxyl acrylic coating composed of a component A and a component B, wherein the weight ratio of the component A to the component B is 1 to (1-3). The component A comprises the raw materials in parts by weight: 40-80 parts of modified hydroxyl acrylic resin, 5-20 parts of water-based hydroxyl fluorosilicone acrylic resin, 5-15 parts of a water-based nano alumina dispersion body, 5-10 parts of a water-based nano silica dispersion body, 2-6 parts of ethylene glycol monoethyl ether acetate, 1-3 parts of a levelling agent BYK306, 0.2-0.8 part of a catalyst dibutyltin dilaurate, and 1-5 parts of xylene. The component B comprises the raw materials in parts by weight: 10-20 parts of a hexamethylene diisocyanate trimer, 1-5 parts of HDI biuret, and 20-30 parts of a diluent. The two-component water-based hydroxyl acrylic coating has good water resistance and excellent corrosion resistance.

Description

Technical field [0001] The invention relates to the technical field of acrylic coatings, in particular to a two-component water-based hydroxy acrylic coating. Background technique [0002] Water-based hydroxy acrylic coatings have the advantages of non-toxic, odorless, non-flammable, non-polluting, and energy-saving. People pay more and more attention. One-component polyurethane coatings have low solid content, low crosslinking density, poor coating regularity, and double The component water-based hydroxy acrylic coating is cured by cross-linking with polyisocyanate to increase the cross-linking density of the coating and significantly improve the performance. However, the water resistance and corrosion resistance of the coating film are still not up to the ideal requirements. Summary of the invention [0003] The invention proposes a two-component water-based hydroxy acrylic paint, which has good water resistance and excellent corrosion resistance. [0004] The two-component water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/12C09D5/08C08F283/02C08F220/28C08F220/14
Inventor 朱恒衡郭宝张国胜
Owner ANHUI JINDUN PAINT
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