Self-crosslinking water-borne wood paint emulsion and synthetic method thereof

A water-based wood paint, self-crosslinking technology, used in latex paints, coatings, polyurea/polyurethane coatings, etc., can solve the problem that water-based wood coatings cannot meet the requirements of high quality, high content of volatile organic compounds, and endanger human health. and other problems, to achieve the effects of excellent gloss and color retention, low volatile organic compound content, and excellent impact resistance

Inactive Publication Date: 2018-03-27
GUANGDONG VALSPAR CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water-based wood coatings developed by these single water-based resins cannot meet people's requirements for high quality
[0004] Therefore, compared with the traditional solvent-based polyurethane coatings, a large amount of organic solvents are required in the synthesis process, resulting in high content of volatile organic compounds (VOC) in the product, which is easy to cause environmental pollution and endanger human health. can cause a fire hazard

Method used

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  • Self-crosslinking water-borne wood paint emulsion and synthetic method thereof
  • Self-crosslinking water-borne wood paint emulsion and synthetic method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] The self-crosslinking water-based wood paint emulsion of this embodiment includes the following raw materials in weight percentage: 60% of self-crosslinking type acrylic emulsion, 2% of isophorone diisocyanate, 2% of glyceryl triacetate, 10% of acrylic monomer, water-based 20% of polyurethane resin emulsion, 0.2% of sodium lauryl sulfate, 3% of nanocellulose, 0.2% of defoamer, and the balance is deionized water.

[0022] Among them, the nanocellulose is a mixture of powdered nanofibril cellulose, nanocrystalline cellulose in the form of an aqueous dispersion, and anionic nanofibrillar cellulose in the form of an aqueous dispersion; the acrylic acid monomer is acrylic acid; the defoaming agent is Polyether-modified siloxane copolymer defoamer containing fumed silica;

[0023] The synthetic method of present embodiment self-crosslinking water-based wood paint emulsion, comprises the following steps:

[0024] S1, weighing each raw material according to weight percentage; ...

Embodiment 2

[0028] The self-crosslinking water-based wood paint emulsion of this embodiment includes the following raw materials in weight percentage: 25% of self-crosslinking type acrylic emulsion, 6% of isophorone diisocyanate, 7% of glyceryl triacetate, 15% of acrylic monomer, water-based Polyurethane resin emulsion 35%, fatty acid polyoxyethylene ester 2%, nanocellulose 6%, defoamer 1.5%, and the balance is deionized water.

[0029] Among them, the nanocellulose is a mixture of nano-microcrystalline cellulose in the form of an aqueous dispersion and anionic nanofibrillar cellulose in the form of an aqueous dispersion; the acrylic monomer is methacrylic acid; the defoaming agent is fumed silica Polyether modified siloxane copolymer defoamer;

[0030] The synthetic method of present embodiment self-crosslinking water-based wood paint emulsion, comprises the following steps:

[0031] S1, weighing each raw material according to weight percentage;

[0032] S2. Put self-crosslinking acryl...

Embodiment 3

[0036] The self-crosslinking water-based wood paint emulsion of this embodiment includes the following raw materials in weight percentage: 25% of self-crosslinking type acrylic emulsion, 3% of isophorone diisocyanate, 3% of glyceryl triacetate, 15% of acrylic monomer, water-based Polyurethane resin emulsion 50%, alkylphenol polyethoxy ether ammonium sulfate 0.5%, powdered nanofibril cellulose 4%, defoamer 0.5%, and the balance is deionized water.

[0037] Wherein, the acrylic monomer is acrylic acid; the defoamer is a polyether-modified siloxane copolymer defoamer containing fumed silica;

[0038] The synthetic method of present embodiment self-crosslinking water-based wood paint emulsion, comprises the following steps:

[0039] S1, weighing each raw material according to weight percentage;

[0040] S2. Put self-crosslinking acrylic emulsion, isophorone diisocyanate, acrylic monomer, water-based polyurethane resin emulsion and deionized water into the mixer and mix them evenl...

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Abstract

The invention provides a self-crosslinking water-borne wood paint emulsion and a synthetic method thereof, relating to the technical field of coatings. The self-crosslinking water-borne wood paint emulsion contains the following raw materials in percentage by weight: 25%-60% of an acrylic emulsion, 2%-6% of isophorone diisocyanate, 2%-7% of glyceryl triacetate, 10%-45% of acrylic monomers, 20%-50%of a waterborne polyurethane resin emulsion, 0.2%-2% of an emulsifying agent, 3%-6% of nano-crystalline cellulose, 0.2%-1.5% of a defoaming agent and the balance of deionized water. By taking the self-crosslinking acrylic emulsion as a main raw material and utilizing the self-crosslinking acrylic monomers, isophorone diisocyanate, the waterborne polyurethane resin emulsion, glyceryl triacetate and nano-crystalline cellulose and other raw materials, the prepared self-crosslinking water-borne wood paint emulsion has relatively high crosslinking density, the hardness, boiling water resistance, solvent resistance, light remaining property, color remaining property and impact resistance of a coating film are relatively excellent, and the content of volatile organic compounds is low, so that the environmental pollution is avoided, and the human healthy is guaranteed.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a self-crosslinking water-based wood paint emulsion and a synthesis method thereof. Background technique [0002] Wood coatings are an important part of the coatings industry. They refer to coatings used for equipment prepared from raw materials such as solid wood panels, wood grain panels, bakelite boards, and fiberboards. They are mainly suitable for furniture, floors, stationery, musical instruments, and building decoration materials. . At present, water-based polyurethane coatings that combine high performance and low VOC content can effectively control the composition and structure of coatings due to the cutting properties of polyurethane molecules, combined with new synthesis and cross-linking technologies, so that they have good low-temperature film-forming properties , high temperature resistance, high strength, wear resistance, environmental protection, etc., so it has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D175/04C09D5/02C09D7/63C09D7/65
CPCC09D133/04C08L2205/035C09D5/022C09D5/024C08L75/04C08L1/02C08K5/103
Inventor 黄宏亭高平黄远明张海军
Owner GUANGDONG VALSPAR CHEM IND
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