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Environmentally-friendly high-performance water-based woodware paint and using method thereof

A water-based wood paint, high-performance technology, used in polyurea/polyurethane coatings, coatings, etc., can solve the problems of hardness, fullness, insufficient chemical resistance, slow drying, two-component design, inconvenient use, etc. Achieve the effect of ensuring film-forming performance, good drying, and excellent quick-drying

Active Publication Date: 2011-05-11
BAUHINIA PAINTS SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: on September 20, 2006, the invention patent "a green and environmentally friendly water-based wood paint" with the authorization announcement number CN1276039C was made of water-based acrylic emulsion with a weight ratio of about 70%. Insufficient fullness, chemical resistance
On January 24, 2007, the authorized announcement number was CN1644639. The invention patent "water-based wood paint with bactericidal, antibacterial and air-purifying functions" is made of water-based polyurethane emulsion with a weight ratio of about 80%, which is antibacterial, high hardness and stain resistance. , anti-adhesion, but slow drying, high price
On January 7, 2009, the invention patent "Water-based wood lacquer and its preparation method" with the announcement number CN101338150A seems to have improved the above shortcomings. The main agent is water-based acrylic emulsion, and adipic acid dihydrazide is used as a curing agent to obtain Good quick-drying, hardness, adhesion and chemical resistance, but there are still shortcomings of two-component design and inconvenient use

Method used

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  • Environmentally-friendly high-performance water-based woodware paint and using method thereof
  • Environmentally-friendly high-performance water-based woodware paint and using method thereof
  • Environmentally-friendly high-performance water-based woodware paint and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] formula:

[0026]

[0027] The self-crosslinking acrylic nanoemulsion uses AC2514 from Alberdingk, Germany;

[0028] The waterborne aliphatic polyurethane dispersion adopts CUR995 from Alberdingk, Germany;

[0029] The matting powder is OK-412 from Germany Degussa Company;

[0030] The dispersant is Hydropalat 1080 from Cognis, Germany;

[0031] The defoamer is BYK-028 from BYK Company in Germany;

[0032] The wetting agent is wet KL245 from Tego Company of Germany;

[0033] The thickener is ACRYSOL RM-8W from American ROHM HAAS Company.

[0034] Put the self-crosslinking acrylic nanoemulsion and water-based aliphatic polyurethane dispersion into the disperser and stir evenly, add matting powder, dispersant, defoamer, and disperse at a line speed of 20m / s for 30 minutes to a fineness of 25μm or below. Continue to add diethylene glycol butyl ether, dipropylene glycol methyl ether, propylene glycol butyl ether, wetting agent, thickener, water, and stir well to obt...

Embodiment 2

[0039] formula:

[0040]

[0041] The self-crosslinking acrylic nanoemulsion adopts 3188 from ROHM HAAS Company of the United States;

[0042] The water-based aliphatic polyurethane dispersion adopts CUR99 from Alberdingk, Germany;

[0043] The matting powder is SD530 from China Aerospace Saide Company;

[0044] The dispersant is Hydropalat 1080 from Cognis, Germany;

[0045] The defoamer is Foamex 810 from Germany Tego Company;

[0046] The wetting agent is wet KL245 from Tego Company of Germany;

[0047] The thickener is visco plus 3030 from German Tego Company;

[0048] Titanium dioxide is selected from R-706 of Dupont Company of the United States.

[0049] Add 70KG water, 20KG dispersant and 5KG wetting agent into a 2000 liter high-speed disperser and stir evenly, add 195KG titanium dioxide and 5KG matting powder under stirring, and disperse at a high speed of 20m / s for 25-40 minutes to Fineness 25μm or below, add 450KG self-crosslinking acrylic nanoemulsion and 1...

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Abstract

The invention discloses an environmentally-friendly high-performance water-based woodware paint and a using method thereof. The environmentally-friendly high-performance water-based woodware paint comprises 40 to 70 weight percent of self-crosslinking acrylic nano-emulsion and 10 to 20 weight percent of water-based aliphatic polyurethane dispersion. The water-based woodware paint is mainly prepared from the self-crosslinking acrylic emulsion with high triglyceride (Tg) content and weather resistance, so that a paint film has high quick-drying property, chemical resistance and weather resistance, and economy; the self-crosslinking acrylic emulsion is compounded with castor oil modified aliphatic polyurethane dispersion, so that the paint film has high adhesion, hardness, fullness, weather resistance, dry heat resistance and block resistance; and diethylene glycol monobutyl ether is matched with dipropylene glycol methyl ether and propylene glycol monobutyl ether, so that the film forming property of the paint film is ensured, and high drying property is achieved.

Description

technical field [0001] The invention relates to a one-component water-based wood varnish. Background technique [0002] With the rapid development of China's economy, environmental problems have become increasingly prominent, and carbon emission reduction has been increasingly valued by the government and enterprises. In the decorative coating industry, the government has introduced the mandatory standard GB 18581 "Limits of Hazardous Substances in Solvent-based Wood Coatings for Interior Decoration Materials", which stipulates that the content of volatile organic compounds (VOC) such as nitro wood paint and matte polyurethane wood paint Higher than 750g / L, 700g / L. However, the HJ / T 201 "Technical Requirements for Environmental Labeling Products Water-based Coatings" standard has a VOC limit of 250g / L for water-based wood paints, which is far lower than the aforementioned VOC limit for oil-based wood paints, indicating that water-based wood paints have better environmental ...

Claims

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Application Information

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IPC IPC(8): C09D133/02C09D175/04
Inventor 王华文谭若山
Owner BAUHINIA PAINTS SHANGHAI CO LTD
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