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Water-soluble non-toxic environment-friendly automobile coating and preparation method thereof

A non-toxic, environmentally friendly, water-soluble technology, applied in polyester coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems that affect workers' health and do not meet environmental protection requirements, and achieve excellent scratch resistance, good resistance Combustibility, the effect of strong paint surface hardness

Inactive Publication Date: 2012-10-31
ZHANGZHOU XIN ZHAN WANG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The intermediate paint used by most domestic bus and passenger car factories is a solvent-based paint, which contains a large amount of harmful substances, and its VOC emission is 100g / m 2 , does not meet the requirements of green environmental protection, and in the process of spraying, a large amount of volatile harmful substances are produced, which affects the health of workers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A water-soluble, non-toxic and green automotive paint, and its preparation method: mixing various raw materials together for dispersion and grinding, and the various raw materials are composed of the following components in parts by weight:

[0026] (1) Put in 48 kg of hydrophilic polyester resin, 25 kg of titanium dioxide, and 5 kg of polyurethane according to the requirements in the formula, and use a high-speed disperser to disperse at high speed for 30 minutes to obtain the mixture;

[0027] (2) The obtained mixed gas is ground by a grinder to make its fineness 15um;

[0028] (3) Mix 12 kilograms of hydrophilic polyester resin with the ground mixture in step (2), disperse again at high speed for 10 minutes, and adjust the solid content to 60% by weight with 10 kilograms of distilled water;

[0029] (4) Filter and pack with a 200 mesh filter.

Embodiment 2

[0031] A water-soluble, non-toxic and green automotive paint, and its preparation method: mixing various raw materials together for dispersion and grinding, and the various raw materials are composed of the following components in parts by weight:

[0032] (1) Put 30 kg of hydrophilic polyester resin, 27 kg of titanium dioxide, and 3 kg of polyurethane according to the requirements in the formula, and disperse at high speed with a high-speed disperser for 35 minutes to obtain a mixture;

[0033] (2) The obtained mixture is ground by a grinder to make its fineness 14um;

[0034] (3) Mix 10 kg of hydrophilic polyester resin with the ground mixture in step (2), disperse again at high speed for 12 minutes, and adjust the solid content to 62 wt% with 30 kg of distilled water;

[0035] (4) Filter and pack with a 200 mesh filter.

Embodiment 3

[0037] A water-soluble, non-toxic and green automotive paint, and its preparation method: mixing various raw materials together for dispersion and grinding, and the various raw materials are composed of the following components in parts by weight:

[0038] (1) Put 24 kg of hydrophilic polyester resin, 43 kg of titanium dioxide, and 2 kg of polyurethane according to the requirements in the formula, and use a high-speed disperser to disperse for 40 minutes to obtain the mixture;

[0039] (2) The obtained mixture is ground by a grinder to make its fineness 14um;

[0040] (3) Mix 16 kg of hydrophilic polyester resin with the ground mixture in step (2), and after high-speed dispersion for 15 minutes again, use 15 kg of distilled water to adjust the solid content to 65wt%;

[0041] (4) Filter and pack with a 200 mesh filter.

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PUM

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Abstract

The invention relates to a water-soluble non-toxic environment-friendly automobile coating and a preparation method thereof. The automobile coating comprises, by weight, 30-60 parts of water dispersive resin, 25-45 parts of pigments and fillers, 1-5 parts of additives and 10-35 parts of water. The method includes the following steps: step one, according to a formula requirement, putting 60%-80% of the water dispersive resin, the pigments and fillers and the additives into a high-speed dispersion machine for 30-60 minutes of high-speed dispersion to obtain a mixture; step two, grinding the mixture to a fineness within 15 microns through a grinder; step three, mixing the residual water dispersive resin with the ground mixture, performing high-speed dispersion again for 10-20 minutes, and adjusting the solids content to 60%-65%; and step four, filtering through a 200-mesh filter screen to obtain a product. Compared with the prior art, the automobile coating has the advantages of being non-toxic and environment-friendly, good in flame retardance and weather resistance and the like.

Description

Technical field [0001] The invention relates to an automobile paint, in particular to a water-soluble, non-toxic and environmentally friendly automobile paint and a preparation method thereof. Background technique [0002] In recent years, international requirements for VOC emissions have become stricter. For example, the German Air Purification Act of 1995 stipulates that the VOC emission of the painted area of ​​the car body should be less than 35s / m 2 . [0003] At present, my country is vigorously promoting the scientific development concept and taking the road of sustainable development. It is foreseeable that the requirements for VOC emissions will become more and more stringent. The intermediate paint used by most domestic bus and passenger car factories is a solvent-based paint, which contains a lot of harmful substances, and its VOC emission is 100g / m 2 , Does not meet the requirements of environmental protection, and during the spraying process, a large amount of volatil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D175/04C09D161/20
Inventor 谢永立
Owner ZHANGZHOU XIN ZHAN WANG CHEM IND
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