A kind of water-based epoxy wet-on-wet polyurethane matching paint applied to engineering machinery and preparation method thereof

A construction machinery, epoxy wet technology, used in polyurea/polyurethane coatings, epoxy coatings, primers, etc., can solve problems such as sagging, orange peel, pinholes, interlayer adhesion drop, gloss drop, etc. Achieve the effect of speeding up the "oil to water" process, reducing production energy consumption, and excellent performance

Active Publication Date: 2022-04-22
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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  • A kind of water-based epoxy wet-on-wet polyurethane matching paint applied to engineering machinery and preparation method thereof
  • A kind of water-based epoxy wet-on-wet polyurethane matching paint applied to engineering machinery and preparation method thereof
  • A kind of water-based epoxy wet-on-wet polyurethane matching paint applied to engineering machinery and preparation method thereof

Examples

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Effect test

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%;

...

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 construction machinery and a preparation method thereof. In the field of paint film appearance, fullness, gloss, hardness, flexibility, salt spray resistance, 40 ℃ water resistance, acid and alkali resistance and other performance requirements, it can also be coated with crude oil paint without changing the current production line Under the premise of line installation, the "wet-on-wet" process in construction machinery is realized, which improves production efficiency, reduces production energy consumption, and promotes the process of "oil-to-water" in various domestic industries.

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 Patents(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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