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Waterborne epoxy floor coating

A technology of epoxy flooring and water-based epoxy emulsion, applied in the field of coatings, can solve problems such as unsatisfactory comprehensive mechanical properties, failure to meet market demand, and endanger human health, and achieve excellent physical and mechanical properties, good corrosion resistance and chemical properties. The effect of stability and ease of coating construction

Inactive Publication Date: 2020-06-05
卢列定
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current anti-corrosion coatings are solvent-based, and solvent-based products contain a large amount of toxic volatile organic compound solvents, which directly volatilize during production and construction to pollute the environment and endanger human health
The development of water-based epoxy resin has gone through three stages. It is called type 1 water-based epoxy system, which basically does not contain organic solvents, but the coating has poor drying property, short pot life and unstable rheology; the second generation is type II water-based epoxy resin. The epoxy system contains some organic solvents as film-forming aids, which are harmful to the environment; the third-generation products are not yet the most mature, that is, vinyl hydrophilic groups are introduced into the epoxy resin to achieve epoxy self-emulsification effect, but the film-forming property is poor, and the comprehensive mechanical properties are not ideal enough to meet the market demand

Method used

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Examples

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Effect test

Embodiment 1

[0011] 286.10kg of deionized water, 15kg of polyether sulfate containing double bonds, methacrylamide isopropylsulfonate

[0012] 20kg, 16kg of sodium 1-propenoxy 2-hydroxypropanesulfonate, 8kg of polyether containing double bonds, 0.5kg of sodium bicarbonate, 0.5kg of ammonium persulfate, 460kg of 618 epoxy resin, 40kg of isooctyl glycidyl ether, Add it into the reaction kettle, and raise the temperature to 80-90°C under stirring conditions. Start to add silicone and acrylate mixture dropwise: β-(3.4 epoxycyclohexyl) ethyltrimethylsilane 10kg, methacrylic acid 0.5kg, styrene 5kg, 2-ethylhexyl acrylate 5kg, methacrylic acid shrink Glyceride 0.3kg, drop over 30min, keep warm (85-90°C) for 2 hours. Then start to drop the pre-emulsion mixture: 43kg of deionized water, 1.5kg of polyether sulfate containing double bonds, 1.5kg of methacrylamide isopropylsulfonate, 1-acryloxy 2-hydroxypropanesulfonic acid Sodium 2kg, polyether containing double bonds 1.5kg, ammonium persulfate 1kg...

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Abstract

The invention provides a waterborne epoxy floor coating, and relates to the technical field of coatings in the field of chemical industry. The waterborne epoxy floor coating comprises a component A and a component B. The component A comprises a high-performance silicone acrylic modified aqueous epoxy emulsion, a pigment filler, an auxiliary agent and deionized water, and the component B is a mixedmodified amine curing agent. According to the invention, the high-performance silicone acrylic modified waterborne epoxy emulsion is used as a basis; a mixed modified amine compound is used as a curing agent; the film-forming comprehensive performance can be matched with that of solvent type epoxy resin, wherein silicon-oxygen bonds in the system have relatively large bond energy and relatively small surface energy, so that the aging resistance, heat resistance, oil resistance, water resistance, precipitation resistance, medium resistance and electrical property of a polymer coating are improved, and the prepared anticorrosive coating reaches and exceeds corresponding indexes of common solvent-based coatings, and is an environment-friendly terrace coating.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based epoxy floor coating. Background technique [0002] The current anti-corrosion coatings are solvent-based, and solvent-based products contain a large amount of toxic volatile organic compound solvents, which directly volatilize during production and construction, pollute the environment and endanger human health. The development of water-based epoxy resin has gone through three stages. It is called type 1 water-based epoxy system, which basically does not contain organic solvents, but the coating has poor drying property, short pot life and unstable rheology; the second generation is type II water-based epoxy resin. The epoxy system contains some organic solvents as film-forming aids, which are harmful to the environment; the third-generation products are not yet the most mature, that is, vinyl hydrophilic groups are introduced into the epoxy resin to achieve epoxy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/20C09D5/08C09D5/18
CPCC08L2201/02C09D5/08C09D5/18C09D7/20C09D163/00C08L43/04
Inventor 卢列定
Owner 卢列定
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