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High-performance waterborne dual-component stoving varnish and preparation method thereof

A two-component, high-performance technology, applied in the field of coatings, can solve problems such as harming human health, destroying the environment, wasting resources, etc., to achieve the effect of increasing production, high scratch resistance, and reducing energy consumption

Inactive Publication Date: 2017-01-25
YUNNAN KUNHUI NENGTONG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent-based coatings will have a large amount of volatile organic solvents VOC, which will be discharged into the atmosphere during use, which will not only damage the environment and endanger human health, but also waste resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A method for preparing a high-performance water-based two-component baking varnish, comprising the following steps: adding 10 parts of pure acrylic resin emulsion to 40 parts of water according to the weight ratio, and then adding 0.5 part of a pH regulator until the pH value is 7.3, and mixing; Then add 0.5 parts of water-based defoamer, mix well, then add 70 parts of water-based polyurethane dispersion, 10 parts of polyurethane curing agent, 30 parts of amino resin, 0.5 parts of water-based multifunctional additive, 0.5 parts of water-based dispersant, 0.5 parts of water-based emulsifier Wet agent, 30 parts of titanium dioxide, 7 parts of film-forming aid, 10 parts of tetrapod zinc oxide whisker powder, 1.5 parts of leveling agent, 5 parts of drier, 5 parts of flame retardant and 10 parts of wax emulsion, mixed After mixing well, add 1.5 parts of water-based thickener, and mix well under the condition of 42°C to obtain the finished product.

Embodiment 2

[0016] A method for preparing a high-performance water-based two-component baking varnish, comprising the following steps: adding 1 part of pure acrylic resin emulsion to 10 parts of water according to the weight ratio, and then adding 0.1 part of a pH regulator until the pH value is 7.2, and mixing; Then add 0.1 part of water-based defoamer, mix well, then add 40 parts of water-based polyurethane dispersion, 1 part of polyurethane curing agent, 5 parts of amino resin, 0.1 part of water-based multifunctional additive, 0.1 part of water-based dispersant, 0.1 part of water-based emulsifier Wet agent, 10 parts of titanium dioxide, 1 part of film-forming aid, 3 parts of tetrapod zinc oxide whisker powder, 0.5 part of leveling agent, 1 part of drier, 1 part of flame retardant and 1 part of wax emulsion, mixed After uniformity, add 0.5-part of water-based thickener, and mix uniformly under the condition of 35°C to obtain the finished product.

Embodiment 3

[0018] A method for preparing a high-performance water-based two-component baking varnish, comprising the following steps: adding 5 parts of pure acrylic resin emulsion to 20 parts of water according to the weight ratio, and then adding 0.2 parts of a pH regulator until the pH value is 7.4, and mixing; Then add 0.2 parts of water-based defoamer, mix well, then add 45 parts of water-based polyurethane dispersion, 5 parts of polyurethane curing agent, 10 parts of amino resin, 0.3 parts of water-based multifunctional additive, 0.3 parts of water-based dispersant, 0.3 parts of water-based emulsifier Wet agent, 15 parts of titanium dioxide, 2 parts of film-forming aid, 5 parts of tetrapod zinc oxide whisker powder, 0.5 part of leveling agent, 3 parts of drier, 3 parts of flame retardant and 3 parts of wax emulsion, mixed After uniformity, add 1.2 parts of water-based thickener, and mix evenly under the condition of 40°C to obtain the finished product.

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Abstract

The invention discloses a high-performance waterborne dual-component stoving varnish. The high-performance water-based dual-component stoving varnish is prepared from, by weight, 40-70 parts of waterborne polyurethane dispersoid, 1-10 parts of polyurethane curing agent, 5-30 parts of amino resin, 0.1-0.5 part of pH adjusting agent, 1-10 parts of pure acrylic resin emulsion, 0.1-0.5 part of waterborne multifunctional additive, 0.1-0.5 part of waterborne dispersing agent, 0.1-0.5 part of waterborne wetting agent, 10-30 parts of titanium dioxide, 1-7 parts of coalescing agents, 0.1-0.5 parts of waterborne antifoaming agent, 3-10 parts of tetrapod-shaped zinc oxide whisker powder, 0.5-1.5 parts of flatting agent, 0.5-1.5 parts of waterborne thickening agent, 1-5 parts of drier, 1-5 parts of flame retardant, 1-10 parts of wax emulsion, and 10-40 parts of water. The high-performance waterborne dual-component stoving varnish has the advantages that the product is free from poison and odor, and is energy-saving and environment-friendly, and able to reduce energy consumption.

Description

technical field [0001] The invention relates to a coating, in particular to a high-performance water-based two-component baking varnish and a preparation method thereof. Background technique [0002] The paint that needs to be baked and dried at a certain temperature to form a film is called baking varnish. At present, traditional oil-based baking varnishes are basically used for baking varnishes on workpieces. Petroleum solvents such as benzene, ether, alcohol, etc. are used as solvents. Solvent-based coatings will have a large amount of volatile organic solvents VOC, which are discharged into the atmosphere during use, which not only damages the environment and endangers human health, but also wastes resources. Therefore, need to develop a kind of safe and reliable baking varnish. Contents of the invention [0003] The purpose of the invention is to provide a safe and reliable high-performance water-based two-component baking varnish. [0004] Another object of the pre...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D161/20C09D133/00C09D5/14C09D7/12
CPCC09D175/04C08L2205/035C09D5/14C08L61/20C08L33/04C08L91/06C08K13/04C08K7/08C08K2003/2241
Inventor 何国文李爱莲
Owner YUNNAN KUNHUI NENGTONG TECH CO LTD
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