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Aqueous white primer for sealing wood oil and tannic acid

A technology of tannin and white primer, applied in the direction of coating, etc., can solve the problems of easy migration of tannin, increase of customer cost, scrapping of coating equipment for coating pipelines, etc.

Inactive Publication Date: 2015-10-28
上海展辰涂料有限公司 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Use traditional solvent-based paint to seal once, and then make water-based white primer, but this method still causes a large amount of VOC emissions during painting
[0005] 2. Use water-based cationic varnish products to seal once, and then make water-based white primers. However, this method makes water-based sealed clear bottom products and water-based white bottom products respectively cationic and anionic products. Improper cleaning during use is prone to gelation. After gelling, all the painting pipelines, delivery pumps, and painting equipment will be scrapped, sometimes resulting in millions of losses, resulting in great waste, and the sealing performance is not good, and the tannin in the wood is still Easy to migrate and increase the number of coatings, resulting in increased customer costs

Method used

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  • Aqueous white primer for sealing wood oil and tannic acid
  • Aqueous white primer for sealing wood oil and tannic acid
  • Aqueous white primer for sealing wood oil and tannic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 10 kg of water,

[0032] Dispersant 1 kg,

[0033] Thickener 0.5 kg,

[0034] PH regulator 0.1 kg,

[0035] Defoamer 1 kg,

[0036] Titanium dioxide white pigment 15 kg,

[0037] Tannin inhibitor 5 kg,

[0038] 2 kg of film-forming solvent,

[0039] Talc powder 10 kg,

[0040] Acrylic emulsion 55.4 kg,

[0041] Described water is common tap water or distilled water

[0042] The dispersant is an acrylic block copolymer solution containing pigment affinity groups, and BYK 190 from BYK Company of Germany can be used.

[0043] Described thickener is polyurethane thickener, can adopt the ACRYSOLRM-12 of U.S. Dow.

[0044] The pH regulator is 2-amino-1-methyl-propanol, and AMP-95 from American Dow Chemical can be used.

[0045] The defoamer is polysiloxane, BYK028 from BYK Company of Germany can be used.

[0046] The titanium dioxide white pigment is rutile titanium dioxide, which can be R-706 from DuPont Company of the United States.

[0047] The tannic acid inhi...

Embodiment 2

[0055]

[0056] Described water is common tap water or distilled water

[0057] The dispersant is an acrylic block copolymer solution containing pigment affinity groups, and BYK 190 from BYK Company of Germany can be used.

[0058] Described thickener is polyurethane thickener, can adopt the ACRYSOLRM-12 of U.S. Dow.

[0059] The pH regulator is 2-amino-1-methyl-propanol, and AMP-95 from American Dow Chemical can be used.

[0060] The defoamer is polysiloxane, BYK028 from BYK Company of Germany can be used.

[0061] The titanium dioxide white pigment is rutile titanium dioxide, which can be R-706 from DuPont Company of the United States.

[0062] The tannic acid inhibitor is amino zirconium salt, and L-44 from HALOX Company of the United States can be used.

[0063] The film-forming solvent is dipropylene glycol monomethyl ether, and DPM from Yangzhou Hualun can be used.

[0064] Described talcum powder is 1250 mesh talcum powder, can adopt the KB-2 of Guangxi Guiguang ...

Embodiment 3

[0070]

[0071] Described water is common tap water or distilled water

[0072]The dispersant is an acrylic block copolymer solution containing pigment affinity groups, and BYK 190 from BYK Company of Germany can be used.

[0073] Described thickener is polyurethane thickener, can adopt the ACRYSOLRM-12 of U.S. Dow.

[0074] The pH regulator is 2-amino-1-methyl-propanol, and AMP-95 from American Dow Chemical can be used.

[0075] The defoamer is polysiloxane, BYK028 from BYK Company of Germany can be used.

[0076] The titanium dioxide white pigment is rutile titanium dioxide, which can be R-706 from DuPont Company of the United States.

[0077] The tannic acid inhibitor is amino zirconium salt, and L-44 from HALOX Company of the United States can be used.

[0078] The film-forming solvent is dipropylene glycol monomethyl ether, and DPM from Yangzhou Hualun can be used.

[0079] Described talcum powder is 1250 mesh talcum powder, can adopt the KB-2 of Guangxi Guiguang C...

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Abstract

The invention discloses aqueous white primer for sealing wood oil and tannic acid. The aqueous white primer comprises the following components in percentage by weight: 5-10% of water, 1-2% of a dispersant, 0.5-1% of a thickener, 0.1-0.2% of a pH adjustor, 1-2% of a defoamer, 15-20% of a titanium dioxide white pigment, 3-5% of a tannic acid inhibitor, 2-3% of a film forming solution, 8-10% of talcum powder and 47.8-64.4% of an acrylic emulsion. The invention relates to aqueous white primer which can be dried at normal temperature and coated to wooden furniture or artware, so that an extremely strong adhesive force and an excellent oil and tannic acid sealing property are achieved, and the purpose of excellent decoration and protection is realized.

Description

technical field [0001] The invention relates to a water-based white primer for sealing wood oil and tannin. Background technique [0002] In recent years, people have paid more and more attention to the problem of air pollution caused by traditional solvent-based coating products due to excessive VOC emissions, and the call for water-based products to replace solvent-based products is getting higher and higher. However, when traditional solvent-based coatings such as polyurethane white paint are used on pine and red oak, due to their good sealing properties, the oil on the pine wood will not penetrate to the surface of the coating, and will not affect the decorative and protective effects of the coating. However, due to the poor sealability of water-based products and the tannic acid in wood products will dissolve in water, and migrate to the surface of water-based paint, it will cause discoloration of white products and affect the decorative effect. The oil and ester in pi...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D7/12
Inventor 周琼辉
Owner 上海展辰涂料有限公司
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