High-performance water-based paint for medium and small mechanical equipment and preparation method thereof

A water-based coating, high-performance technology, applied in polyester coatings, coatings, etc., can solve the problems of large differences in coating quality requirements and processes, not widely used, different product types, etc., to avoid green barriers, The effect of good comprehensive performance of paint film and high humidity and heat resistance

Inactive Publication Date: 2012-04-11
GUANGZHOU QINGTIAN INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the manufacturing process, coating quality requirements and processes of mechanical equipment and passenger cars are quite different, and the product types are also different, it cannot be applied
At present, the domestic self-sufficiency rate of water-based coating for mechanical equipment is less than 10%, which is mainly concentrated in the application fields with low requirements such as mechanical chassis and the manufacture of primers such as primer electrophoresis, while the high-performance, The composite coating technology with high decorative requirements has not been widely used, especially the water-based high-performance coating technology that meets the requirements of REACH has not been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The preparation method of the high-performance water-based paint of embodiment 1 is: (1) get part water-based resin, this part water-based resin accounts for 30% of water-based resin total amount, adds in the stirring tank, then adds dispersant, adds pigment while stirring, Then add part of defoamer, this part of defoamer accounts for 50% of the total amount of defoamer, and the obtained material is dispersed at a speed of 2500rpm / min for 30 minutes to disperse evenly. At the same time, it is necessary to monitor the temperature of the material to ensure that the temperature of the material does not exceed 50°C; (2) Grind the homogeneously dispersed material in step (1) until the material fineness is 5 microns, then add the remaining water-based resin, full methyl etherified amino resin, wetting and leveling agent, thixotropic agent, remaining disinfectant Foaming agent, anti-flash corrosion agent, anti-fungal agent, film-forming agent, deionized water, stir evenly, adju...

Embodiment 2

[0040]The preparation method of the high-performance water-based coating of embodiment 2 is: (1) get part water-based resin, this part water-based resin accounts for 40% of water-based resin total amount, adds in the stirring tank, then adds dispersant, adds pigment while stirring, Then add part of defoamer, this part of defoamer accounts for 50% of the total amount of defoamer, and the obtained material is dispersed at a speed of 1500rpm / min for 40 minutes to disperse evenly. At the same time, it is necessary to monitor the temperature of the material to ensure that the temperature of the material does not exceed 50°C; (2) Grind the homogeneously dispersed material in step (1) until the material fineness is 10 microns, then add the remaining water-based resin, full methyl etherified amino resin, wetting and leveling agent, thixotropic agent, remaining disinfectant Foaming agent, anti-flash corrosion agent, anti-fungal agent, film-forming agent, deionized water, stir evenly, ad...

Embodiment 3

[0041] The preparation method of the high-performance water-based coating of embodiment 3 is: (1) get part water-based resin, this part water-based resin accounts for 40% of water-based resin total amount, adds in the stirring tank, then adds dispersant, adds pigment while stirring, Then add part of defoamer, this part of defoamer accounts for 60% of the total amount of defoamer, and the obtained material is dispersed at a speed of 2000rpm / min for 30 minutes to disperse evenly. At the same time, it is necessary to monitor the temperature of the material to ensure that the temperature of the material does not exceed 50°C; (2) Grind the homogeneously dispersed material in step (1) until the material fineness is 8 microns, then add the remaining water-based resin, full methyl etherified amino resin, wetting and leveling agent, thixotropic agent, remaining disinfectant Foaming agent, anti-flash corrosion agent, anti-fungal agent, film-forming agent, deionized water, stir evenly, ad...

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PUM

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Abstract

The invention discloses a high-performance water-based paint for medium and small mechanical equipment, which comprises the following components in percentage by weight: 35-45% of water-based resin, 8-15% of full methylated amino resin, 2-8% of dispersant, 1-5% of pigment, 0.5-1% of wetting and leveling agent, 0.5-1% of thixotropic agent, 0.5-1% of defoaming agent, 0.1-0.8% of flash etching inhibitor, 0.1-0.8% of mildew inhibitor, 1-5% of film forming assistant and 30-40% of deionized water. The invention also discloses a preparation method of the high-performance water-based paint. The high-performance water-based paint has the characteristics of water dilution property, energy saving, environmental protection and the like, and is convenient for construction; the coating has the advantages of high aging resistance, solvent resistance, moisture and heat resistance, high gloss, high fullness and favorable mechanical properties; and the properties of the paint film achieve or exceed those of similar type oil-based products.

Description

technical field [0001] The invention relates to a chemical paint, in particular to a water-based paint used for small and medium mechanical equipment, and also to a preparation method of the paint. Background technique [0002] my country is far behind the international advanced level in terms of high-performance coating water-based technology. High-performance water-based coatings have an absolute advantage in industrially developed countries. Most of the machinery in Western Europe adopts water-based coating; in the United States, Japan and other countries, it is as high as 40-50%, but at present, my country's water-based coating only accounts for 15% in the field of industrial coating, mainly concentrated in the manufacture of foreign-funded brand passenger cars. [0003] Domestic enterprises that produce water-based high-performance coatings for machinery and equipment are mainly internationally renowned companies such as BASF, Nippon Paint, and PPG. Their output accoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D167/00C09D161/32C09D7/12
Inventor 许奕祥许杰禹汉文许振阳张红
Owner GUANGZHOU QINGTIAN INDAL
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