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Nano-silver-containing adhesive and using method of adhesive in technical wood

A nano-silver and adhesive technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of use, can not be used as adhesives, etc., achieve good stability and dispersibility, resist the Invasion effect

Active Publication Date: 2014-05-28
DEHUA TB NEW DECORATION MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] CN101318224B (2010-8-25) discloses a method for preparing an aqueous solution containing nano-silver, but it cannot be used as an adhesive

Method used

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  • Nano-silver-containing adhesive and using method of adhesive in technical wood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Preparation of nano silver:

[0049] Add sodium dodecylsulfonate solution and hydrazine hydrate solution to silver nitrate aqueous solution to obtain a mixed solution, the molar ratio of sodium dodecylsulfonate to silver nitrate is 2:1; the hydrazine hydrate and nitric acid The molar ratio of silver is 2:5;

[0050] 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.

[0051]

[0052] Preparation of adhesive containing nano silver:

[0053] Apply nano-silver evenly in the environment-friendly glue solution, and use flour as an additive for glue; the concentration of nano-silver in the adhesive is 75ppm; the mass content of flour in the solution is 18%;

[0054] Environme...

Embodiment 2

[0065] Preparation of nano silver:

[0066] Add sodium dodecylsulfonate solution and hydrazine hydrate solution to silver nitrate aqueous solution to obtain a mixed solution, the molar ratio of sodium dodecylsulfonate to silver nitrate is 3:1; the hydrazine hydrate and nitric acid The molar ratio of silver is 3:5;

[0067] 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.

[0068]

[0069] Preparation of adhesive containing nano silver:

[0070] Apply nano-silver evenly in the environment-friendly glue solution, and use flour as the glue additive; the concentration of nano-silver in the adhesive is 150ppm; the mass content of flour in the solution is 45%;

[007...

Embodiment 3

[0081] Preparation of nano silver:

[0082] Add sodium dodecylsulfonate solution and hydrazine hydrate solution to silver nitrate aqueous solution to obtain a mixed solution, the molar ratio of sodium dodecylsulfonate to silver nitrate is 5:2; the hydrazine hydrate and nitric acid The molar ratio of silver is 1:2;

[0083] 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.

[0084]

[0085] Preparation of adhesive containing nano silver:

[0086] Apply nano-silver evenly in the environment-friendly glue solution, and use flour as the glue additive; the concentration of nano-silver in the adhesive is 100ppm; the mass content of flour in the solution is 25%;

[0087] E...

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Abstract

The invention relates to the field of nanometer materials, and particularly relates to nano-silver-containing adhesive and a using method of the adhesive in technical wood. The nano-silver-containing adhesive is characterized in that nano-silver is uniformly applied to an environmentally friendly glue solution, and flour is used as an additive of glue. A preparation method of the nano-silver comprises the following steps: adding a sodium dodecyl sulfate solution and a hydrazine hydrate solution to a silver nitrate solution so as to obtain mixed liquid, and adding crown ether and an alkali metal-containing reducing agent to the mixed liquid, wherein the molar ratio of the crown ether to the silver nitrate is (1-2): 1, the molar ratio of the alkali metal-containing reducing agent to the silver nitrate is (0.5-1): 1; and controlling a pH value to 8-9, thus obtaining the nano-silver. The using method of the adhesive comprises the following steps: bonding decorative veneer and a base material through the nano-silver-containing adhesive, then feeding into a vacuum tank, and vacuumizing; then carrying out pressurizing treatment; carrying out microwave treatment; and finally taking out, and carrying out cold pressing and hot pressing. The nano-silver-containing adhesive provided by the invention has good stability, dispersity and adhesiveness.

Description

technical field [0001] The invention relates to the field of nanomaterials, in particular to an adhesive containing nanosilver and a method for using the same in technical wood. [0002] Background technique [0003] Metal nanomaterials are an important branch of nanomaterials, represented by precious metals gold, silver, and copper, among which nano-silver has received the most attention because of its broad application prospects. Nano-silver can be used in many ways: adding a small amount of nano-silver to chemical fiber can improve some properties of chemical fiber products and make it have a strong bactericidal ability; doping an appropriate amount of nano-silver in the silicon oxide film can make The glass coated with this film has certain photoluminescence. Therefore, nano-silver has broad application prospects in the fields of antibacterial materials, high-efficiency catalysts, lubricants, light-absorbing materials, coatings, sensors, conductive pastes, high-perform...

Claims

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Application Information

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IPC IPC(8): C09J11/04C09J133/00C09J123/08C09J123/28B22F9/24
Inventor 詹先旭沈金祥刘元强杨勇
Owner DEHUA TB NEW DECORATION MATERIAL CO LTD
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