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Electrostatically-sprayed waterborne coating

A water-based coating and electrostatic spraying technology, which is applied in powder coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of high labor intensity, poor leveling, and failure to meet the requirements of operators, and achieve the reduction of labor intensity of workers. Improve the effect of leveling and film thickness

Inactive Publication Date: 2015-03-18
展辰新材料集团股份有限公司 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the enhancement of people's awareness of environmental protection, water-based wood coatings are developing rapidly in our country. At present, the water-based wood coatings on the market are sprayed with compressed air. ; At the same time, the labor intensity of the operators is high, the efficiency is low, and the labor protection of the operators is not in place, which affects their health
Due to fast water volatilization and good conductivity, general water-based paints have poor leveling properties and thin paint films during electrostatic spraying, which cannot meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Formula: 75 parts of water-based resin, 0.3 part of wetting agent, 10 parts of talcum powder, 8 parts of transparent powder, 1 part of anti-settling agent, 1.5 parts of thickener, 2 parts of water, 0.3 part of defoamer, 0.3 part of leveling agent , 0.2 parts of mildew and fungicide, 2 parts of film-forming aids, 0.3 parts of PH regulator, 5 parts of high boiling point solvent.

[0034] Production method: Put in water-based resin → add wetting agent → disperse evenly at medium speed → add anti-settling agent, defoamer, leveling agent, anti-mold and fungicide in sequence → disperse at medium speed for 5 minutes → add talc powder, transparent powder → Disperse at a medium speed for 30 minutes to fineness ≤ 45 microns → add thickener, pH regulator, film-forming aid, high boiling point solvent and water, and adjust the pH value to 8-9.

[0035] The appearance of the obtained electrostatically sprayed water-based paint is: milky white viscous liquid.

Embodiment 2

[0037] Formula: 85 parts of water-based resin, 0.3 part of wetting agent, 5 parts of talcum powder, 3 parts of transparent powder, 0.5 part of anti-settling agent, 2 parts of thickener, 2 parts of water, 0.3 part of defoamer, 0.3 part of leveling agent , 0.2 parts of mildew and fungicide, 3 parts of film-forming aids, 0.3 parts of PH regulator, 4 parts of high boiling point solvent.

[0038] Production method: with embodiment 1;

[0039] The appearance of the obtained electrostatically sprayed water-based paint is: milky white viscous liquid.

Embodiment 3

[0041] Formula: 80 parts of water-based resin, 0.3 part of wetting agent, 13 parts of talcum powder, 0 part of transparent powder, 0.5 part of anti-settling agent, 2 parts of thickener, 2 parts of water, 0.3 part of defoamer, 0.3 part of leveling agent , 0.2 parts of anti-mold and fungicide, 2 parts of film-forming aids, 0.3 parts of PH regulator, 6 parts of high boiling point solvent.

[0042] Production method: with embodiment 1;

[0043] The appearance of the obtained electrostatically sprayed water-based paint is: milky white viscous liquid.

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Abstract

The invention discloses an electrostatically-sprayed waterborne coating comprising following components, by weight, 75-85 parts of waterborne resin, 0.1-0.5 parts of a wetting agent, 0-15 parts of talcum powder, 0-10 parts of transparent powder, 0.5-1 part of an anti-settling agent, 2-5 parts of water, 1-2 parts of a thickening agent, 0.1-0.5 parts of a defoaming agent, 0.1-0.5 parts of a leveling agent, 0.1-0.3 parts of a mouldproof sterilizing agent, 0.1-0.5 parts of a pH adjusting agent, 1-3 parts of a film coalescing aid and 3-6 parts of a high-boiling-point solvent. The high-boiling-point solvent is a mixed solution composed of tripropylene glycol butyl ether and ethylene glycol hexyl ether according to a proportion of 1:1. The electrostatically-spraying waterborne coating can effectively improve a levelling property and a thickness of a paint film when the electrostatically-sprayed waterborne coating coats wood products.

Description

technical field [0001] The invention relates to a water-based paint for woodware, in particular to a water-based paint for electrostatic spraying. Background technique [0002] With the enhancement of people's awareness of environmental protection, water-based wood coatings are developing rapidly in our country. At present, the water-based wood coatings on the market are sprayed with compressed air. ; At the same time, the labor intensity of the operators is high, the efficiency is low, and the labor protection of the operators is not in place, which affects their health. Due to fast water volatilization and good conductivity, general water-based paints have poor leveling properties and thin paint films during electrostatic spraying, which cannot meet the requirements. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a water-based paint with good leveling property and thick paint film by electrostatic spraying. ...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D5/46
CPCC09D175/14C08K2201/003C08L2205/025C08L2205/03C08L2205/035C09D5/03C09D7/20C08L83/12C08L75/04C08K3/36C08K3/34
Inventor 王琦陈寿生
Owner 展辰新材料集团股份有限公司
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