Waterborne epoxy wet-on-wet polyurethane matched paint applied to engineering machinery and preparation method of waterborne epoxy wet-on-wet polyurethane matched paint

A construction machinery, epoxy wet technology, applied in polyurea/polyurethane coatings, epoxy resin coatings, primers, etc., can solve the problems of decreased adhesion between layers, poor compatibility of topcoats, and primer bites, etc., to achieve improved Production efficiency and the effect of reducing production energy consumption

Active Publication Date: 2021-06-01
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In view of the fact that water-based coatings in the prior art cannot meet the "wet-on-wet" coating requirements and common problems and industry problems encountered in construction, the purpose of the present invention is to provide a water-based epoxy "wet-on-wet" polyurethane applied to construction machinery Matching paint can solve the poor compatibility between epoxy primer and polyurethane topcoat, which is prone to appearance defects such as sagging, orange peel, pinholes, etc., the topcoat bites the primer, the decrease of interlayer adhesion, the decrease of gloss, and the lack of resistance, etc. The construction window, primer and topcoat can be thickly coated, and can be practically applied to "wet-on-wet" coating of construction machinery, promoting the process of "oil-to-water"

Method used

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  • Waterborne epoxy wet-on-wet polyurethane matched paint applied to engineering machinery and preparation method of waterborne epoxy wet-on-wet polyurethane matched paint
  • Waterborne epoxy wet-on-wet polyurethane matched paint applied to engineering machinery and preparation method of waterborne epoxy wet-on-wet polyurethane matched paint
  • Waterborne epoxy wet-on-wet polyurethane matched paint applied to engineering machinery and preparation method of waterborne epoxy wet-on-wet polyurethane matched paint

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Embodiment 1

[0060] An embodiment of the present invention provides a water-based epoxy "wet-on-wet" polyurethane matching paint applied to engineering machinery, including a two-component water-based epoxy antirust primer and a two-component water-based hydroxypropyl paint.

[0061] Described water-based two-component epoxy anticorrosion primer is divided into A, B two-component, and each raw material mass percent of A component is: water-based epoxy resin 42.5%, deionized water 12%, the first dispersant 2.30%, pH Regulator 0.10%, pigments and fillers 30%, zinc phosphate 5%, ZMP5%, carbon black 0.20%, first wetting and leveling agent 0.15%, first thickener 0.20%, second thickener 0.10%, second 0.15% defoamer, 0.30% anti-flash rust additive, 2.00% first film-forming additive;

[0062] Each raw material mass percent of described water-based two-component epoxy anticorrosion primer B component is: water-based epoxy curing agent 50%, deionized water 30% and the second film-forming aid 20%;

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Embodiment 2

[0079] An embodiment of the present invention provides a water-based epoxy "wet-on-wet" polyurethane matching paint applied to engineering machinery, including a two-component water-based epoxy antirust primer and a two-component water-based hydroxypropyl paint.

[0080] Described water-based two-component epoxy anticorrosion primer is divided into A, B two-component, and each raw material mass percent of A component is: water-based epoxy resin 60%, deionized water 10%, the first dispersant 1.80%, pH Conditioner 0.15%, pigments and fillers 20%, zinc phosphate 3%, ZMP3%, carbon black 0.10%, first wetting and leveling agent 0.15%, first thickener 0.25%, second thickener 0.10%, second 0.15% defoamer, 0.30% anti-flash rust additive, 1.00% first coalescence additive;

[0081] Each raw material mass percentage of described water-based two-component epoxy anticorrosion primer B component is: water-based epoxy curing agent 60%, deionized water 10% and the second film-forming aid 30%;

...

Embodiment 3

[0098] An embodiment of the present invention provides a water-based epoxy "wet-on-wet" polyurethane matching paint applied to engineering machinery, including a two-component water-based epoxy antirust primer and a two-component water-based hydroxypropyl paint.

[0099] Described water-based two-component epoxy anticorrosion primer is divided into A, B two-component, and each raw material mass percent of A component is: water-based epoxy resin 50%, deionized water 13%, the first dispersant 2.20%, pH Regulator 0.10%, pigments and fillers 25%, zinc phosphate 3%, ZMP4%, carbon black 0.20%, first wetting and leveling agent 0.20%, first thickener 0.25%, second thickener 0.10%, second 0.15% defoamer, 0.30% anti-flash rust additive, 1.50% first coalescence additive;

[0100] Each raw material mass percentage of described water-based two-component epoxy anticorrosion primer B component is: water-based epoxy curing agent 60%, deionized water 20% and the second film-forming aid 20%;

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Abstract

The invention discloses a water-based epoxy wet-on-wet polyurethane matching paint applied to engineering machinery and a preparation method of the water-based epoxy wet-on-wet polyurethane matching paint. According to the invention, a water-based two-component epoxy anticorrosive primer is matched with a water-based two-component polyurethane finish paint, so while meeting the performance requirements of paint film appearance, fullness, gloss, hardness, flexibility, salt mist resistance, 40-DEG C water resistance, acid and alkali resistance and the like in the field of engineering machinery coating, a wet-to-wet process in engineering machinery can be realized on the premise of not changing a current production line and using a crude oil paint coating line; and thus, production efficiency is improved, production energy consumption is reduced, and the process of converting oil into water in various industries in China is promoted.

Description

technical field [0001] The invention discloses a water-based epoxy "wet-on-wet" polyurethane matching paint applied to engineering machinery and a preparation method thereof, belonging to the field of paint application. Background technique [0002] In recent years, my country's construction machinery manufacturing industry has developed rapidly. Due to the large size of most construction machinery products, the demand for coatings is large, and the market prospect of coatings for construction machinery is very broad. With the increasingly prominent problem of air pollution, the formation of a consensus on resource conservation and green development, the state and local governments have issued relevant laws and regulations and stricter emission standards and punishment measures, and the pollution control and emission reduction in the coating production process of construction machinery is becoming more and more urgent. [0003] In order to meet environmental protection requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/20C09D163/02C09D5/08C09D5/00
CPCC09D175/04C09D163/00C09D5/08C09D5/002C09D7/20
Inventor 张成彬孙伟祖邓俊英武泰恒郝宝祥孙家宽
Owner WANHUA CHEM GRP CO LTD
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