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Long-acting antibacterial polyurethane water-based wood paint composition

A technology of water-based wood paint and composition, which is applied in the direction of polyurea/polyurethane paint, paint containing biocide, antifouling/underwater paint, etc. Prevent the loss of silver antibacterial agent and other problems, and achieve the effect of preventing loss and preventing secondary infection

Inactive Publication Date: 2011-02-16
江苏大象东亚制漆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the loss of the nano-silver antibacterial agent, the antibacterial, long-acting and persistent properties of the paint film are still insufficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A composition used as polyurethane water-based wood paint putty, which consists of 49 parts of polyurethane emulsion (DSM XK-12) with a solid content of 50 ± 2%, 1.57 parts of film-forming aid (Filmer C40), 1 part of nano silver antibacterial agent (AGS-F-1), 1.5 parts of polyurethane thickener (R&H2020), 3 parts of bamboo charcoal powder (GF-400, 30 microns), 20 parts of filler (1250 mesh talc powder), defoamer (Nopco NXZ) 0.6 parts, wetting agent (Hydropalat 3204) 0.1 parts, dispersant (SN-5027) 0.5 parts and deionized water 22.73 parts.

[0016] The production process of polyurethane water-based wood paint is as follows: at 400 rpm, add deionized water, dispersant, wetting agent, defoamer, filler, nano-silver antibacterial agent and bamboo charcoal powder in sequence, and then use 2000 rpm Disperse at a high speed until the fineness is less than 40 microns, then add film-forming aids, polyurethane emulsion and polyurethane thickener in sequence, adjust the paint at 4...

Embodiment 2

[0025] A composition as bright water-based polyurethane wood varnish topcoat, which consists of 84 parts of polyurethane emulsion (Yizhong Xingri ER-03) with a solid content of 50 ± 2%, 2 parts of lauryl alcohol ester, Nano silver antibacterial agent (AGS-F-1) 1 part, polyurethane thickener (R&H2020) 0.3 part, bamboo charcoal powder (GF-400, 25 micron) 3 parts, defoamer (BYK-028) 0.10 part, wetting Agent (BYK-346) 0.3 parts and deionized water 9.3 parts.

[0026] The production process of bright water-based polyurethane wood varnish is as follows: sequentially add polyurethane emulsion, deionized water, wetting agent, defoamer, film-forming aid and thickener, adjust the paint for 30 minutes at 400 rpm, Then add nano-silver antibacterial agent and bamboo charcoal powder, and disperse at a high speed of 2000 rpm for 40 minutes until the fineness is less than 25 microns.

[0027] Technical indicators of bright water-based polyurethane wood varnish:

[0028] Water resistance (8h...

Embodiment 3

[0035] A kind of matt type water-based polyurethane wood varnish, calculated by weight, it is 79 parts of polyurethane emulsion (Yizhong Xingri ER-03) with solid content of 50 ± 2%, 9.3 parts of deionized water, wetting agent ( BYK-346) 0.3 parts, defoamer (BYK-028) 0.1 parts, coalescent (dodecyl alcohol ester) 2 parts, co-solvent (ethylene glycol ether) 2 parts, wax emulsion (50% polyethylene wax ) 2 parts, matte powder (TS100) 1 part, nano silver antibacterial agent (AGS-F-1) 1 part, bamboo charcoal powder (GF-400, 25 microns) 3 parts, polyurethane thickener (R&H2020) 0.3 parts.

[0036] The production process of matte waterborne polyurethane wood varnish is as follows: sequentially add polyurethane emulsion, deionized water, wetting agent, defoamer, film-forming aid, co-solvent and wax emulsion, and disperse three Ten minutes, then add matte powder, nano-silver antibacterial agent and bamboo charcoal powder, disperse at a high speed of 2000 rpm for 40 minutes, until the fin...

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Abstract

The invention relates to a long-acting antibacterial polyurethane water-based wood paint composition. The composition consists of 30 to 90 parts of polyurethane emulsion, 0.5 to 5 parts of film-forming auxiliary agent, 10 to 40 parts of deionized water, 0.01 to 15 parts of nano silver antibacterial agent, 0.1 to 10 parts of bamboo charcoal powder and 0 to 32 parts of additive, wherein the dispersion medium of the polyurethane emulsion is water, and the solid content is 40 to 60 weight percent; and the additive is selected from one or more of dispersant, flatting agent, wetting agent, defoaming agent, delustering agent, co-solvent, thickener and filler. The composition can effectively prevent the loss of nano silver ions by adopting novel bamboo charcoal powder adsorption technology, has the effects of fixing bacteria, germs and mold on the surface of a paint film and preventing secondary pollution, and improves the long-term property, validity and durability of bacteria resistance, bacteria killing and sterilization of a polyurethane water-based wood paint film.

Description

technical field [0001] The invention relates to a long-acting antibacterial polyurethane water-based wood paint composition. Background technique [0002] Water-based wood paint is favored by people because it does not contain organic solvents, is safe, environmentally friendly, and healthy. It has been successfully developed and put into the market in large quantities to meet people's decoration and decoration needs. Among them, polyurethane water-based wood paint has better corrosion resistance and aging resistance. However, due to the hydrophilicity of the paint film, the paint film is particularly easy to absorb various bacteria, molds and germs. Nano-silver antibacterial agent is a new type of nano-material that uses silver-containing compounds to treat nano-materials through physical and chemical methods to form nano-particles coated with silver ions. The nano-materials can be titanium, silicon, aluminum, etc. Nano-silver antibacterial agent It can be made into powde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09D5/14C09D175/04
Inventor 杨少武陈春连刘祥艾小芳
Owner 江苏大象东亚制漆有限公司
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