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Waterborne wood coating and preparation method thereof

A wood coating, water-based technology, applied in the field of coatings, can solve problems such as human harm and environmental pollution, and achieve the effects of preventing penetration, increasing solid content and improving filling performance.

Inactive Publication Date: 2018-12-25
NANTONG A ZENITH DONGFANG FURNITURE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the fact that traditional organic solvent-based coatings will produce a lot of volatile organic solvents (VOC) such as toluene and xylene during use, these volatile organic solvents will not only cause harm to the human body, but also cause serious damage. environmental pollution

Method used

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  • Waterborne wood coating and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] A water-based wood coating, the formula includes: polyurethane dispersion, hydroxyacrylic acid emulsion, filler, film-forming aid, nano-alumina, wetting agent, thickening agent, dispersing agent and defoaming agent, the weight percentage of each raw material They are: 50% polyurethane dispersion, 40% hydroxy acrylic emulsion, 0.1% filler, 0.1% film-forming aid, 8.5% nano-alumina, 0.1% wetting agent, 0.1% thickener, 0.1% dispersant, Defoamer 1%.

[0026] A method for preparing water-based wood coatings, comprising the following steps: step 1, raw material selection and weighing; step 2, pre-training and premixing; step 3, grinding and dispersing; step 4, blending; step 5, toning; step 6, filtering Package;

[0027] Wherein in the above-mentioned step 1, according to the weight percentages, they are: polyurethane dispersion 50%, hydroxyacrylic acid emulsion 40%, filler 0.1%, film-forming aid 0.1%, nano-alumina 8.5%, wetting agent 0.1%, Thickener 0.1%, dispersant 0.1%, d...

Embodiment 2

[0035] A water-based wood coating, the formula includes: polyurethane dispersion, hydroxyacrylic acid emulsion, filler, film-forming aid, nano-alumina, wetting agent, thickening agent, dispersing agent and defoaming agent, the weight percentage of each raw material They are: polyurethane dispersion 45%, hydroxy acrylic emulsion 45%, filler 0.5%, film-forming aid 0.5%, nano-alumina 7%, wetting agent 0.5%, thickener 0.5%, dispersant 0.5%, Defoamer 0.5%.

[0036] A method for preparing water-based wood coatings, comprising the following steps: step 1, raw material selection and weighing; step 2, pre-training and premixing; step 3, grinding and dispersing; step 4, blending; step 5, toning; step 6, filtering Package;

[0037] Wherein in the above-mentioned step 1, according to the weight percentages, they are: polyurethane dispersion 45%, hydroxyacrylic acid emulsion 45%, filler 0.5%, film-forming aid 0.5%, nano-alumina 7%, wetting agent 0.5%, Thickener 0.5%, dispersant 0.5%, def...

Embodiment 3

[0045] A water-based wood coating, the formula includes: polyurethane dispersion, hydroxyacrylic acid emulsion, filler, film-forming aid, nano-alumina, wetting agent, thickening agent, dispersing agent and defoaming agent, the weight percentage of each raw material They are: 40% polyurethane dispersion, 50% hydroxy acrylic emulsion, 0.1% filler, 0.1% film-forming aid, 8.5% nano alumina, 0.1% wetting agent, 1% thickener, 0.1% dispersant, Defoamer 0.1%.

[0046] A method for preparing water-based wood coatings, comprising the following steps: step 1, raw material selection and weighing; step 2, pre-training and premixing; step 3, grinding and dispersing; step 4, blending; step 5, toning; step 6, filtering Package;

[0047] Wherein in the above-mentioned step 1, according to the weight percentages, they are: polyurethane dispersion 40%, hydroxyacrylic acid emulsion 50%, filler 0.1%, film-forming aid 0.1%, nano-alumina 8.5%, wetting agent 0.1%, Thickener 1%, dispersant 0.1%, def...

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Abstract

The invention discloses waterborne wood coating and a preparation method thereof. The waterborne wood coating comprises, by weight percentage, 40-50% of polyurethane dispersion, 40-50% of hydroxyl acrylic emulsion, 0.1-1% of filling agent, 0.1-1% of coalescing agent, 5-10% of nano aluminum oxide, 0.1-1% of wetting agent, 0.1-1% of thickening agent, 0.1-1% of dispersing agent and 0.1-1% of defoaming agent. The preparation method includes: selecting and weighing the polyurethane dispersion, the hydroxyl acrylic emulsion, the filling agent, the coalescing agent, the nano aluminum oxide, the wetting agent, the thickening agent, the dispersing agent and the defoaming agent according to the specific proportion; premixing before mixing; grinding and dispersing; blending; adjusting color, filtering and packaging. The coating has the advantages that the coating has high-hardness and high-strength film-forming property and can increase the solid content of waterborne resin and increase the filling performance of the waterborne resin, a high-fullness paint film without collapse can be obtained after film forming, and the small-molecule fast film forming nano modification prevents water molecules from seeping into wood and improves the swelling problem of the waterborne coating.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based wood coating and a preparation method. Background technique [0002] The film-forming substances of paints can be divided into three types: organic, inorganic and organic-non-chemical composites. Among them, the use of inorganic film-forming coatings is relatively small, mainly silicates, and organic ones. The application of film coatings is quite extensive, and the main solvent used is organic solvent. Since traditional organic solvent-based coatings will produce a lot of volatile organic solvents (VOCs) such as toluene and xylene during use, these volatile organic solvents will not only cause harm to the human body, but also cause serious damage. Environmental pollution. Therefore, with the increasing awareness of environmental protection, reducing volatile organic solvents in coatings or preparing coatings with zero volatile organic solvents has become an impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D133/04C09D7/61C09D7/43
CPCC08K2003/2227C08K2201/011C09D7/43C09D7/61C09D175/04C08L33/04C08K13/02C08K3/22
Inventor 卢建军高伟钱蒋锋钱海强林亚军张玲云
Owner NANTONG A ZENITH DONGFANG FURNITURE CO LTD
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