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Waterborne polyurethane based quick-drying wood coating with superhigh solid content

A technology of water-based polyurethane with ultra-high solid content, applied in the field of polymers, can solve problems such as troublesome use of cross-linking methods and toxic cross-linking agents, and achieve the effects of reducing dust pollution, easy acquisition, and low equipment investment

Inactive Publication Date: 2015-08-26
GUANGDONG VALSPAR CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is troublesome to use the diplomatic linking method, and most of the crosslinking agents are toxic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A waterborne polyurethane-based ultra-high solid content quick-drying wood coating, the raw materials of which are:

[0041] 20 parts of polyurethane;

[0042] 10 parts of polyacrylic acid;

[0043]2 parts of dispersant;

[0044] 2 parts of thickener;

[0045] 20 parts of ethanol aqueous solution;

[0046] DNS 4 copies;

[0047] 4 parts of film-forming agent;

[0048] 4 parts of paint.

[0049] Among them, polyurethane is water-based polyurethane, and its curing amount is greater than 60%.

[0050] Wherein, the powder is polyvinylpyrrolidone.

[0051] Wherein, the thickener is sodium bentonite.

[0052] Wherein, the ethanol content of ethanol aqueous solution is 40%.

[0053] Wherein, the film-forming agent is propylene glycol butyl ether.

[0054] Wherein, the pigment is aluminum powder.

Embodiment 2

[0056] A waterborne polyurethane-based ultra-high solid content quick-drying wood coating, the raw materials of which are:

[0057] 30 parts of polyurethane;

[0058] 15 parts of polyacrylic acid;

[0059] 3 parts of dispersant;

[0060] 3 parts of thickener;

[0061] 25 parts of ethanol aqueous solution;

[0062] DNS 5 copies;

[0063] 10 parts of film-forming agent;

[0064] Pigment 10 parts.

[0065] Among them, polyurethane is water-based polyurethane, and its curing amount is greater than 60%.

[0066] Wherein, the powder is monoglyceride stearate.

[0067] Wherein, the thickener is sodium bentonite.

[0068] Wherein, the ethanol content of ethanol aqueous solution is 80%.

[0069] Wherein, the film-forming agent is propylene glycol methyl ether acetate.

[0070] Wherein, the pigment is copper powder.

Embodiment 3

[0072] A water-based polyurethane-based ultra-high solid content quick-drying wood coating, the raw material of which is: 20-30 parts of polyurethane;

[0073] 12 parts of polyacrylic acid;

[0074] 2 parts of dispersant;

[0075] 2 parts of thickener;

[0076] 22 parts of ethanol aqueous solution;

[0077] DNS 4 copies;

[0078] 7 parts of film-forming agent;

[0079] Pigment 7 parts.

[0080] Among them, polyurethane is water-based polyurethane, and its curing amount is greater than 60%.

[0081] Wherein, the powder is ethylene-acrylic acid copolymer.

[0082] Wherein, the thickener is sodium bentonite.

[0083] Wherein, the ethanol content of ethanol aqueous solution is 60%.

[0084] Wherein, the film-forming agent is propylene glycol butyl ether.

[0085] Wherein, the pigment is carbon black.

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PUM

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Abstract

The invention specifically relates to a waterborne polyurethane based quick-drying wood coating with superhigh solid content. The coating comprises polyurethane, polyacrylic acid, a dispersing agent, a thickener, ethanol water, DNS (3,5-dinitrosalicylic acid), a film forming agent and pigment, and the prepared coating is a flowable viscous liquid. According to the waterborne polyurethane based quick-drying wood coating with the superhigh solid content, the process is simple, the equipment investment is small, resources of raw materials are simple and conventional, and the raw materials are easy to obtain.

Description

technical field [0001] The invention belongs to the field of macromolecules, and in particular relates to a water-based polyurethane-based fast-drying wood coating with ultra-high solid content. 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, et...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D133/02C09D7/12
CPCC09D175/04C08L2205/03C09D7/61C09D7/65C08L33/02C08L39/06C08K13/02C08K3/346C08K2003/0812C08K2003/085C08K5/103C08L23/0869C08K3/04C08L23/06C08K2003/2241
Inventor 黄宏亭蔡森张海军谢志超彭亿姿
Owner GUANGDONG VALSPAR CHEM IND
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