Water-based single-component wood coating and preparation method thereof

A wood coating, one-component technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of high brittleness, unsuitable for high-grade wood furniture, reduced hardness, etc. The effect of improving the hardness of the coating film

Inactive Publication Date: 2020-05-19
成都迪泰化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: the acrylic resin emulsion is brittle at low temperature due to its linear chain structure, and its hardness is reduced at high temperature. This wood coating is not suitable for the use of high-grade wood furniture

Method used

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  • Water-based single-component wood coating and preparation method thereof
  • Water-based single-component wood coating and preparation method thereof
  • Water-based single-component wood coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Table 1 is each raw material and its weight of a kind of water-based one-component wood coating in embodiment 1

[0038] raw material Weight (kg) raw material Weight (kg) Waterborne Acrylic Resin 30 Dipropylene glycol methyl ether 6 Waterborne polyurethane resin 40 BYK-333 0.3 Organic Montmorillonite 4 Hydroxyethyl cellulose 1 Nano alumina slurry 10 Dispersant 731A 0.3 Nano silica 3 talcum powder 0.6 Nano Titanium Dioxide 3 Vinyltriethoxysilane 0.1 3-Aminopropyltrimethoxysilane 0.5 Matting Powder TS-100 3 Polyether modified silicone defoamer 0.1

[0039] The preparation method of nano-alumina slurry is as follows: 1) Evenly disperse 10kg of nano-alumina in 50kg of water, then add 2kg of silane coupling agent KH550 and stir for 20min; 2) After stirring, add 1kg of dispersant 3204, 0.5kg of anti-sedimentation Agent BYK420, ultrasonically dispersed for 30 minutes to obtain nano-alum...

Embodiment 2

[0045] Table 2 is each raw material and its weight of a kind of water-based one-component wood coating in embodiment 2

[0046]

[0047] The preparation method of nano-alumina slurry is as follows: 1) uniformly disperse 10kg of nano-alumina in 60kg of water, then add 2kg of titanate coupling agent NDZ201 and stir for 30min; 2) after the stirring, add 2kg of dispersant 3204, 1kg of Precipitating agent BYK420, ultrasonically dispersed for 40 minutes to obtain nano-alumina slurry.

[0048] A preparation method of water-based one-component wood coating, specifically comprising the steps of:

[0049] Step 1. Weigh the water-based acrylic resin, water-based polyurethane resin, nano-alumina slurry, wetting agent, and dispersant in the container according to the formula, and disperse them evenly in the container, and keep stirring, and the stirring speed is controlled at 2000r / min;

[0050] Step 2, add matting powder and continue stirring, the stirring speed is controlled at 3000r...

Embodiment 3

[0053] Table 3 is each raw material and its weight of a kind of water-based one-component wood coating in embodiment 3

[0054] raw material Weight (kg) raw material Weight (kg) Waterborne Acrylic Resin 40 Dipropylene glycol n-butyl ether 3 Waterborne polyurethane resin 37 lauryl alcohol ester 3 Organic Montmorillonite 6 BYK-333 0.5 Nano alumina slurry 14 Hydroxyethyl cellulose 2 Nano silica 5 Dispersant 731A 0.2 Nano Titanium Dioxide 1 talcum powder 0.8 3-Aminopropyltrimethoxysilane 1 Vinyltriethoxysilane 0.3 Polyether modified silicone defoamer 0.5 Matting Powder TS-100 5

[0055] The preparation method of the nano-alumina slurry is as follows: 1) uniformly disperse 10kg of nano-alumina in 70kg of water, then add 1.5kg of titanate coupling agent NDZ201 and 1.5kg of silane coupling agent KH550 and stir for 30min; 2) after the stirring is completed , add 1.5kg dispersant 3204, 0.8kg anti...

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Abstract

The invention relates to a water-based single-component wood coating and a preparation method thereof. The water-based single-component wood coating comprises, by weight, 30-40 parts of waterborne polyurethane resin, 35-40 parts of waterborne polyurethane resin, 4-6 parts of organic montmorillonite,10-15 parts of a nano-alumina slurry, 3-5 parts of nano silicon dioxide, 1-3 parts of nano titaniumdioxide, 0.5-1 parts of a wetting agent, 0.1-0.5 part of an antifoaming agent, 6-8 parts of a coalescing agent, 0.3-0.5 part of a leveling agent, 1-2 parts of a thickener, 0.2-0.3 part of a dispersingagent, 0.4-0.8 part of talcum powder, 0.1-0.3 part of vinyltriethoxysilane and 3-5 parts of an extinction powder. The hardness of a coating film is improved, so that the wood coating is suitable forhigh-grade wood furnitures.

Description

technical field [0001] The invention relates to the technical field of water-based coatings, in particular to a water-based one-component wood coating and a preparation method thereof. Background technique [0002] Wood coatings are mainly used for wood products such as wooden furniture, office appliances, musical instruments, teaching and sports equipment, as well as some bamboo and rattan ware. The use and grade of wooden furniture are different, and the requirements for the performance of wood lacquer are also different. Traditional wood coatings are mainly solvent-based. Due to their superior performance, solvent-based coatings have become the first choice for finishing. However, solvent-based coatings will release a large amount of volatile organic gases during preparation and use, which is harmful to the environment and human body. With the improvement of people's awareness of environmental protection and the promulgation of relevant laws, traditional solvent-based co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D133/04C09D7/62C09D7/61C09D7/63
CPCC08K2003/2227C08K2201/011C08L2205/035C09D133/04C09D175/04C09D7/61C09D7/62C09D7/63C08L33/04C08K9/06C08K3/22C08K3/36C08K3/34C08K3/346C08K13/06C08K5/544C08L75/04
Inventor 杨代富陈洪章
Owner 成都迪泰化工有限公司
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