Mildew-resistant and antibacterial nano-silver decorative laminated board

An anti-mildew, anti-bacterial and nano-silver technology, applied in the field of nano-materials, can solve the problem of failing to give full play to the anti-mildew and anti-bacterial effect of nano-silver, and achieve the effect of maintaining adhesion, improving adhesion, and not easy to agglomerate

Active Publication Date: 2014-06-18
DEHUA TB NEW DECORATION MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology describes how silicon carbide (SiC) ceramics have been treated with various chemicals beforehand to create better composites called composite materials. These new compounds help prevent cracking when exposed to water due to their ability to combine different atoms together without becoming unstable themselves. They also enhance the activity of other molecules like alkaline metals while still being able to keep them separate from each others. Overall, this process helps achieve durability and resistance against environmental damage such as fungal attacks.

Problems solved by technology

This patents discuss how metal nanoparms (NPs), such as Silver or Copper Nanowires) may help fight against harmful microorganisms like molds spores. These tiny objects called “nanosilvers” were discovered during early stages of their discovery process. However, there was difficulty attaching these minute pieces together due to factors like weather resistance and adhesion between different layers when they had been exposed to rainwater over time. To solve this problem, various techniques involving chemically reducing silver nitrate solutions onto fibers made from organosilsoxanes were developed. Additionally, other types of nonspherium compounds also found use in making opaque films on substrates could potentially provide new applications related to biomedical devices.

Method used

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  • Mildew-resistant and antibacterial nano-silver decorative laminated board

Examples

Experimental program
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Embodiment 1

[0040] Preparation of nano silver:

[0041] Add sodium dodecylsulfonate solution and fatty alcohol polyoxyethylene ether sulfate salt solution to silver nitrate aqueous solution to obtain a mixed solution, the molar ratio of sodium dodecylsulfonate to silver nitrate is 2:1; The mol ratio of oxyethylene ether sulfate ester salt and silver nitrate is 2:5;

[0042]Heat the mixture to 45°C, add dicyclohexane-18-crown-6 and sodium borohydride to the mixture while stirring, heat to 70°C, and keep stirring for 5 minutes; dicyclohexane-18-crown The molar ratio of -6 to silver nitrate is 1:1; the molar ratio of sodium borohydride to silver nitrate is 0.5:1, and the pH value is controlled to be 8 to obtain nano silver.

[0043] Preparation of nano silver aqueous solution:

[0044] Dissolve in deionized water with deionized water as solvent, nano silver as solute, acrylic resin as complexing agent and stabilizer in deionized water, then add dispersant and first reducing agent to form a...

Embodiment 2

[0058] Preparation of nano silver:

[0059] Add sodium dodecylsulfonate solution and fatty alcohol polyoxyethylene ether sulfate sodium solution to silver nitrate aqueous solution to obtain a mixed solution, the molar ratio of sodium dodecylsulfonate to silver nitrate is 3:1; The mol ratio of oxyethylene ether sulfate ester salt and silver nitrate is 3:5;

[0060] Heat the mixture to 55°C, add dicyclohexane-18-crown-6 and potassium borohydride to the mixture while stirring, heat to 85°C, and keep stirring for 8 minutes; dicyclohexane-18-crown The molar ratio of -6 to silver nitrate is 1-2:1; the molar ratio of potassium borohydride to silver nitrate is 0.5-1:1, and the pH value is controlled to be 8-9 to obtain nano silver.

[0061] Preparation of nano silver aqueous solution:

[0062] Using deionized water as solvent, nano silver as solute dissolved in deionized water, acrylic resin as complexing agent and stabilizer dissolved in deionized water, then adding dispersant and ...

Embodiment 3

[0074] Preparation of nano silver:

[0075] Add sodium dodecylsulfonate solution and fatty alcohol polyoxyethylene ether sulfate sodium solution into silver nitrate aqueous solution to obtain a mixed solution, the molar ratio of sodium dodecylsulfonate to silver nitrate is 2.5:1; The molar ratio of oxyethylene ether sulfate ester salt to silver nitrate is 1:2;

[0076] Heat the mixture to 50°C, add dicyclohexane-18-crown-6 and sodium metaphosphate to the mixture while stirring, heat to 75°C, and keep stirring for 6 minutes; dicyclohexane-18-crown The molar ratio of -6 to silver nitrate is 1.5:1; the molar ratio of sodium metaphosphate to silver nitrate is 0.8:1, and the pH value is controlled to be 8.5 to obtain nano silver.

[0077] Preparation of nano silver aqueous solution:

[0078] Using deionized water as solvent, nano silver as solute dissolved in deionized water, acrylic resin as complexing agent and stabilizer dissolved in deionized water, then adding dispersant and...

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Abstract

The invention relates to the field of nano materials and particularly relates to a mildew-resistant and antibacterial nano-silver decorative laminated board. The mildew-resistant and antibacterial nano-silver decorative laminated board is formed by a decorative veneer and a base material which are bonded by an adhesive layer, wherein the decorative veneer and the base material are dipped by nano aqueous solution; the adhesive layer contains nano-silver substances; the decorative veneer and the base material are made of technical wood; the nano-silver aqueous solution is formed by adopting deionized water as a solvent, adopting nano silver as solute to be dissolved into the deionized water, adopting acrylic resin as a complexing agent and a stabilizing agent to be dissolved into the deionized water, and adding a dispersing agent and a first reducing agent simultaneously; the concentration of nano silver in the adhesive is 75-150ppm; the mass content of flour in solution is 18-45%; environmental-friendly glue comprises the following materials in parts by weight: 40-80 parts of acrylic resin solution emulsion with the solid content being 40-55%, 20-40 parts of acrylic resin powder, 5-20 parts of EVA emulsion with the solid content being 40-60%, 1-4 parts of dibutyl phthalate and 7-13 parts of chlorinated polypropylene or polyolefin substrate adhesive-force promoter. The mildew-resistant and antibacterial nano-silver decorative laminated board has the advantages that the stability and the dispersibility are good and the mildew can be fully resisted.

Description

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Claims

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Application Information

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Owner DEHUA TB NEW DECORATION MATERIAL CO LTD
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