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Special two-component water-based paint for buses and coating process of two-component water-based paint

A two-component, water-based paint technology, which is applied in the direction of surface coating liquid devices, coatings, anti-corrosion coatings, etc., can solve the problem that water-based paint technology is immature, cannot adapt to the construction environment, and two-component water-based paint cannot satisfy customers In order to achieve the effect of shortening the flash-drying time, improving the film-forming efficiency and shortening the flash-drying time

Inactive Publication Date: 2019-12-10
上海时佳涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Water-based automotive coatings were imported from abroad around 2000, but the imported water-based paint technology was immature at that time, especially the two-component water-based paint could not meet customer requirements, nor could it adapt to the fast-paced domestic construction environment

Method used

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  • Special two-component water-based paint for buses and coating process of two-component water-based paint
  • Special two-component water-based paint for buses and coating process of two-component water-based paint
  • Special two-component water-based paint for buses and coating process of two-component water-based paint

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Experimental program
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Effect test

Embodiment

[0037] 1. Two-component water-based epoxy primer

[0038] A. This product is matched with E20 and E35 epoxy equivalent emulsions to increase the solid content of the original construction, reduce the viscosity of the original paint, and reduce the water consumption for dilution, which not only ensures sufficient chemical resistance, salt spray performance, but also balances Improved adhesion, drying speed, flexibility;

[0039] B. In order to meet the on-site curing speed requirements, the curing agent adopts a compound structure of aliphatic amine and modified polyamide. On the basis of improving the curing speed, the original salt spray, chemical resistance, water resistance and adhesion are maintained , flexibility and other characteristics;

[0040] C. The cross-linking density is designed at 70-75%, keeping the excess of epoxy groups, controlling the PVC at 28-32%, and the concentration of phosphate anti-rust pigments at 20-25%. While ensuring the necessary salt spray pe...

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Abstract

The invention provides special two-component water-based paint for buses. The special two-component water-based paint comprises a two-component water-based epoxy primer, two-component water-based intermediate paint and two-component water-based finishing paint. While maintaining the original physical and chemical properties without reducing, compared with traditional solvent-based bus paint, the use of organic solvents can be significantly decreased, and VOC is lowered; compared with existing water-based bus paint on the market, the flash drying time can be shortened, the production pace is speeded up, and the more efficient coating efficiency can be obtained.

Description

technical field [0001] The invention relates to vehicle surface paint coating and coating technology, and is especially suitable for the workshop assembly line coating operation of large-area spraying of passenger cars. Background technique [0002] Advocate environmental protection and reduce the use of volatile organic compounds to reduce damage to the environment. [0003] Water-based automotive coatings were introduced into China from abroad around 2000, but the imported water-based paint technology was immature at that time, especially the two-component water-based paint could not meet customer requirements, nor could it adapt to the fast-paced domestic construction environment. For example, after spraying one layer of imported two-component water-based paint, it needs to stand for 10 minutes before spraying the second coat, and after the second coat, it needs to stand for 10-15 minutes before baking. In terms of the cycle, the static flash-drying time can be significa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D175/04C09D133/04C09D5/08C09D7/20C09D7/63B05D1/38B05D3/02B05D7/14
CPCB05D1/38B05D3/0254B05D7/14B05D2502/00B05D2503/00B05D2504/00B05D2505/00C09D5/08C09D133/04C09D163/00C09D175/04C09D7/20C09D7/63B05D2420/01B05D2420/02B05D2420/03C08L75/04C08K5/06
Inventor 孙一周广庆陈众王建良
Owner 上海时佳涂料有限公司
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