Water-soluble paint, preparation method and spraying technique thereof

A water-soluble coating and process technology, applied in coatings and other directions, can solve the problems of not conforming to the development trend of green environmental protection science, increasing production costs, and high energy consumption, achieving good paint film adhesion effect, film-forming adhesion performance improvement, increase The effect of production efficiency

Inactive Publication Date: 2012-11-28
ZHUHAI CBB CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the baking and film-forming temperature of water-soluble coatings on the market is generally above 180 degrees. The higher temperature requirements have caused an increase in production costs. The construction process cannot implement a wet-on-wet process, which makes the efficiency of spraying production low. High energy consumption, and the oil on the bottom of the paint when electroplating glass, ceramics and hardware products is oily paint, which does not conform to the scientific development trend of green environmental protection

Method used

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  • Water-soluble paint, preparation method and spraying technique thereof
  • Water-soluble paint, preparation method and spraying technique thereof
  • Water-soluble paint, preparation method and spraying technique thereof

Examples

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Embodiment 1

[0043] The preparation method of the water-soluble coating described in the present embodiment, comprises the steps:

[0044] (1) Weigh dipropylene glycol monomethyl ether DPM and isopropanol in proportion, then add modified acrylic resin, etherified melamine resin and coupling agent, and stir for 3-10 minutes;

[0045] (2) Mix the pH regulator with water and add it to the mixed solution obtained in step (1), adjust the pH value to 8.5-9.5, and stir for 5-10 minutes to obtain a transparent water-soluble paint;

[0046] (3) Adding dyes to the transparent water-soluble paint obtained in step (2) to obtain the water-soluble paint.

[0047] The spraying process of the water-soluble paint prepared by the above method on the bottom surface of glass, ceramics, hardware and electroplated products: multi-layer spraying on the workpiece to be sprayed or low-temperature preheating after each layer of spraying, and then baking at 160 ° C Serve in 15 minutes.

[0048] Embodiment 1 perfor...

Embodiment 2

[0054] The preparation method of water-soluble coating described in the present embodiment, comprises the steps:

[0055](1) Weigh dipropylene glycol monomethyl ether DPM and isopropanol in proportion, then add modified acrylic resin, etherified melamine resin and coupling agent, and stir for 3-10 minutes;

[0056] (2) Mix the pH regulator with water and add it to the mixed solution obtained in step (1), adjust the pH value to 8.5-9.5, and stir for 5-10 minutes to obtain a transparent water-soluble paint;

[0057] (3) The pigment and 3MgO·4SiO 2 ·H 2 O is added to the transparent water-soluble paint obtained in step (2) to obtain the water-soluble paint.

[0058] The spraying process of the water-soluble paint prepared by the above method on the bottom surface of glass, ceramics, hardware and its electroplated products: multi-layer spraying on the workpiece to be sprayed or low-temperature preheating after each layer of spraying, and then baking at 110 ° C Serve in 20 minut...

Embodiment 3

[0063] The preparation method of water-soluble coating described in the present embodiment, comprises the steps:

[0064] (1) Weigh dipropylene glycol monomethyl ether and isopropanol in proportion, then add modified acrylic resin, etherified melamine resin and coupling agent, and stir for 3-10 minutes;

[0065] (2) Mix the pH regulator with water and add it to the mixed solution obtained in step (1), adjust the pH value to 8.5-9.5, and stir for 5-10 minutes to obtain a transparent water-soluble paint;

[0066] (3) Combine dyes, pigments and 3MgO·4SiO 2 ·H 2 O is added to the transparent water-soluble paint obtained in step (2) to obtain the water-soluble paint.

[0067] The spraying process of the water-soluble paint prepared by the above method on the bottom surface of glass, ceramics, hardware and its electroplating products: multi-layer spraying on the workpiece to be sprayed or low-temperature preheating after each layer of spraying, and then baking at 120 ° C Serve in...

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Abstract

The invention discloses a water-soluble paint, and a preparation method and spraying technique thereof. Modified acrylic resin is added into the formula of the water-soluble paint, so that the baking film-forming temperature of the paint is dropped from common 180 DEG C to 110-160 DEG C; a coupling agent is added, so that the film-forming attachment of the water-soluble paint can be greatly improved, and the hardness of the paint film achieves or exceeds National Standard 5B; and the product coated with the paint can keep the favorable paint film attachment effect for a long time. The spraying technique-wet-on-wet technique effectively overcomes the defects of low production efficiency and high energy consumption due to repeated spraying and repeated baking in the existing technique, greatly enhances the production efficiency of the spraying construction, and greatly saves the energy consumption.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a water-soluble coating, a preparation method and a spraying process. Background technique [0002] Traditional oil-based paints are often flammable and explosive, and there are major safety hazards in production, transportation, storage and use, and most of the oil-based paints contain toxic solvents such as stupid, which are more harmful to the human body and bring more serious harm. Environmental issues. In recent years, water-based coatings have become more and more popular in the market because they do not contain benzene solvents and are not flammable and explosive, which bring environmental protection and safety. Compared with oil-based coatings, water-based coatings are better in acid resistance, water resistance, salt spray resistance, etc., and the coating is easy to apply, no matter spraying, dipping or roller coating, there are no disadvantages, and the applied coat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D161/32C09D7/12
Inventor 胡军曹国平
Owner ZHUHAI CBB CHEM
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