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Water-based dipping coating

A dip-coating and water-based technology, applied in the field of paint, can solve the problems of solvent-based paints, such as toxicity and odor, and achieve the effects of excellent water solubility, excellent construction stability, and less pollution to the working environment

Inactive Publication Date: 2016-02-10
TIANJIN CITY XINLIHUA COLOR MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the enhancement of environmental regulations and everyone's awareness of environmental protection, solvent-based coatings have been greatly restricted in the use process due to their toxic and odorous defects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The water-based dipping paint is prepared from the following components by weight: 50 parts of epoxy modified hydrophilic polyester oligomer; 20 parts of melamine formaldehyde resin; 7 parts of indium tin oxide; 5 parts of titanium dioxide; 3 parts of epoxy resin anticorrosion coating; 12 parts of ethyl acetate and methyl acetate; 70 parts of deionized water. Wherein the epoxy-modified hydrophilic polyester oligomer is obtained by reacting epoxy resin and polyester.

Embodiment 2

[0018] The water-based dipping paint is prepared from the following components in parts by weight: 50 parts of epoxy-modified hydrophilic polyester oligomer; 15 parts of melamine-formaldehyde resin and 5 parts of urea-formaldehyde resin; 7 parts of indium tin oxide ; 5 parts of titanium dioxide; 3 parts of polyurethane anti-corrosion coating; 12 parts of ethyl acetate; 70 parts of deionized water.

[0019] The using method of described water-based dipping paint: 1, paint liquid preparation: according to the thickness index of ambient temperature and coating, the volume ratio of water / ethylene glycol monoalkyl ether is the thinner of 1 / 1.2 to adjust the original paint to the appropriate Viscosity, it can be used after aging for 2-4 hours under stirring conditions; 2. Workpiece surface treatment: the surface of the workpiece should be phosphating or passivated, and then cleaned with deionized water; 3. Dip coating: after dip coating Drying treatment, coating process parameters a...

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Abstract

The invention provides a water-based dipping coating which is prepared from the following components in parts by weight: 40-60 parts of an epoxy-modified hydrophilic polyester oligomer, 20-25 parts of water-based amine resin, 3-10 parts of indium tin oxide, 3-10 parts of titanium dioxide, 3-5 parts of a corrosion-resistant pigment, 10-15 parts of a cosolvent and 50-70 parts of deionized water. The water-based dipping coating has excellent performances of corrosion resistance, chemical resistance and acid and alkali resistance, and the film thickness by primary dip-coating can reach over 30 [mu]m, so that the water-based dipping coating is suitable for a primary dip-coating process of integrating primer and a finishing coat; the water-based dipping coating is small in odor, less in pollution in an operational environment, convenient to construct and easy to clean; the water-based dipping coating has excellent water solubility, and the coating liquid is hard to precipitate and does not crust and mildew, so that the water-based dipping coating has excellent storage stability and construction stability.

Description

technical field [0001] The invention belongs to the technical field of paints, in particular to a water-based dipping paint. Background technique [0002] With the enhancement of environmental regulations and everyone's awareness of environmental protection, solvent-based coatings have been greatly restricted in the use process due to their toxic and odorous defects. In this case, it promotes the development of coatings in the direction of high solid dispersion coatings, water-based coatings and other environmentally friendly coatings, especially water-based coatings that use water as a solvent have the advantages of saving resources, environmental protection, safe use, and low VOC emissions. It has developed rapidly and is more and more popular among people. Contents of the invention [0003] The invention provides a kind of water-based dip coating, the technical scheme adopted is: [0004] A water-based dip-coating paint, which is prepared from components comprising th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D161/28C09D7/12C09D5/08
Inventor 张崇亮
Owner TIANJIN CITY XINLIHUA COLOR MATERIAL
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