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Electrophoretic coating water-based color paste and preparation method thereof

A technology for water-based colorants and electrophoretic coatings, which can be used in electrophoretic coatings, pigment pastes, coatings, etc., and can solve the problems of cumbersome processes, unfriendly environmental protection of oil-based colorants, and inaccurate color matching.

Pending Publication Date: 2021-09-24
典永新材料科技(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the dye slurry is mostly an oily system, it cannot be directly added to the bath liquid of the water-based electrophoretic paint tank. It must first be added to the original paint of high-solid electrophoretic paint, and it can be diluted with water to work with low-solid content after fully stirring. liquid, and add it to the paint tank, the process is relatively cumbersome, the color is not accurate, and the oily color paste is not friendly to environmental protection
Although water-based dye paste appeared later, it is not suitable for electrophoretic coating process

Method used

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  • Electrophoretic coating water-based color paste and preparation method thereof
  • Electrophoretic coating water-based color paste and preparation method thereof
  • Electrophoretic coating water-based color paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The raw material composition ratio of the electrophoretic paint water-based color paste used in the present embodiment is as follows:

[0032] ingredients parts by weight pure water 65.0 Ethylene glycol butyl ether 5.0 ZetaSperse 3800 1

18.0 red toner 2

13.0

[0033] 1: Evonik products. 2: Clariant product F5RK-CN09.

[0034] The preparation process is as follows:

[0035] (1) Put pure water, butyl glycol ether, and ZetaSperse3800 dispersant into a 1L double-layer stainless steel dispersion tank, start the mixer, and stir at a speed of 200rpm for 15 minutes or evenly to obtain a dispersion.

[0036] (2) Increase the rotation speed to 300rpm, slowly add the red toner into the tank, so that the red toner is completely dissolved in the dispersion, and continue to stir for 1 hour to obtain a pre-dispersed color paste.

[0037] (3) Slowly add 150g of plastic beads with a particle size of 0.6-0.7mm into the tank. At this time, i...

Embodiment 2

[0040] The raw material composition ratio of the electrophoretic paint water-based color paste used in the present embodiment is as follows:

[0041] ingredients parts by weight pure water 60.0 Ethylene glycol butyl ether 10.0 ZetaSperse 3800 15.0 yellow toner 3

15.0

[0042] 3: Clariant product HR02-CN09.

[0043] The preparation process is as follows:

[0044] (1) Put pure water, butyl glycol ether, and ZetaSperse3800 dispersant into a 1L double-layer stainless steel dispersion tank, start the mixer, and stir at a speed of 200rpm for 15 minutes or evenly to obtain a dispersion.

[0045] (2) Increase the rotation speed to 300rpm, slowly add the yellow toner into the tank to completely dissolve the yellow toner into the dispersion, and keep stirring for 1 hour to obtain a pre-dispersed color paste.

[0046] (3) Slowly add 150g of plastic beads with a particle size of 0.6-0.7mm into the tank. At this time, increase the speed to 800rp...

Embodiment 3

[0049] The raw material composition ratio of the electrophoretic paint water-based color paste used in the present embodiment is as follows:

[0050] ingredients parts by weight pure water 70.0 Propylene Glycol Methyl Ether 4.0 ZetaSperse 3800 20.0 blue toner 4

15.0

[0051] 4: Clariant product BLUE BG.

[0052] The preparation process is as follows:

[0053] (1) Put pure water, propylene glycol methyl ether, and ZetaSperse3800 dispersant into a 1L double-layer stainless steel dispersion tank, start the mixer, and stir at a speed of 200rpm for 15 minutes or evenly to obtain a dispersion.

[0054] (2) Increase the rotation speed to 300rpm, slowly add the blue toner into the tank, so that the blue toner is completely dissolved in the dispersion, and keep stirring for 1 hour to obtain a pre-dispersed color paste.

[0055] (3) Slowly add 150g of plastic beads with a particle size of 0.6-0.7mm into the tank. At this time, increase the sp...

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Abstract

The invention relates to an electrophoretic coating water-based color paste and a preparation method thereof, and the electrophoretic coating water-based color paste comprises the following raw materials in parts by weight: 10-50 parts of a pigment, 1-20 parts of a dispersing agent and 0-20 parts of a water-based cosolvent, wherein the dispersing agent is a charged high-molecular solvent-free dispersing agent. According to the electrophoretic coating water-based color paste, the pigment can achieve a transparent effect, the color paste is water-based and is more environment-friendly, and by adopting the charged high-molecular solvent-free dispersing agent, the electrophoretic coating water-based color paste has excellent weather resistance and yellowing resistance. The water-based cosolvent reduces the surface tension difference of a liquid-solid interface in a dispersion system, so that pigment particles are more safely and stably dispersed in a water phase, and in addition, the water-based cosolvent can also play a role in being combined with an electrophoretic coating. Through the formula, the environment-friendly water-based color paste disclosed by the invention has good storage stability, has long-term stability in an electrophoretic working solution, and has better compatibility with water-based paint.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a water-based color paste for electrophoretic coatings and a preparation method thereof. Background technique [0002] At present, the share of electrophoretic coating in the paint industry is increasing. This is because compared with non-electrophoretic coating, electrophoretic coating process not only increases the utilization rate of coatings, but also because electrophoretic coating has irreplaceable high Penetration properties greatly improve the corrosion resistance of the coating to the substrate. In addition, more importantly, electrophoretic paint is a low-pollution water-based environmentally friendly paint. Under the current requirements of clean production and environmental protection, electrophoretic paint is the best alternative to replace oil-based paint. [0003] For decorative electrophoretic coating, cathodic acrylic electrophoretic coating is usually the fi...

Claims

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Application Information

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IPC IPC(8): C09D17/00C09D5/44
CPCC09D17/003C09D17/005C09D5/448
Inventor 郭珍华丁志扬刘明凡刘明权
Owner 典永新材料科技(深圳)有限公司
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