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Method for in-situ generating ultrafine silver particles in textile

An in-situ generation and textile technology, applied in textiles, papermaking, fiber processing, etc., can solve the problems of poor durability and high cost, and achieve the effects of good dispersion, good anti-electromagnetic radiation, and small particle size

Inactive Publication Date: 2006-07-19
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3. Coating technology: use metal sputtering, vacuum metal plating, electroplating or chemical plating to cover a layer of conductive film on the surface of the fabric, which can achieve a good anti-electromagnetic radiation effect. The disadvantage is that the cost is expensive and the durability is relatively poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First use 2% sodium hydroxide solution to treat the fabric fiber to remove the dirt on the surface of the fabric, then wash it with water, dry it, and then place the fabric in 10g / l SnCl 2 In aqueous solution, Sn 2+ After being adsorbed to the fiber surface of the textile, it is dried, and with the assistance of ultrasound, the surface-treated fabric is immersed in a mixed solution of silver nitrate-dissolved ethanol and water (the water content is 5%), and the silver nitrate solution is Concentration is 3×10 -3 M. The reaction temperature is room temperature, and the silver grows and deposits on the fiber surface.

Embodiment 2

[0023] First use 2% sodium hydroxide solution to treat the fabric fiber to remove the dirt on the surface of the fabric, then wash it with water, dry it, and then place the fabric in 15g / l SnCl 2 In aqueous solution, Sn 2+ Adsorbed to the fiber surface of the textile and then dried, under the action of ultrasound, the adsorbed Sn 2+ The fabric is immersed in the mixed solution of ethanol and water containing silver nitrate (the content of water is 5%), the reaction temperature is room temperature, silver grows and deposits on the fiber surface, utilizes Sn 2+ Metal ions are reduced to realize the link between metal and fiber. Silver nitrate is then added. The concentration of silver nitrate is 9×10 -3 M.

Embodiment 3

[0025] First use 2% sodium hydroxide solution to treat the fabric fiber to remove the dirt on the surface of the fabric, then wash it with water, dry it, and then place the fabric in 12g / l SnCl 2 In aqueous solution, Sn 2+ Adsorbed to the fiber surface of the textile and then dried, under the action of ultrasound, the adsorbed Sn 2+ The fabric is immersed in the mixed solution of ethanol and water containing silver nitrate (the content of water is 20%), the reaction temperature is room temperature, silver grows and deposits on the fiber surface, utilizes Sn 2+ Metal ions are reduced to realize the link between metal and fiber. Silver nitrate is then added. The concentration of silver nitrate is 6×10 -3 M.

[0026] Textiles can be cotton, polyester, acrylic, etc.

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Abstract

The disclosed preparation method for ultramicro Ag+ in textile comprises: adsorbing Sn2+ on textile fiber surface to reduce the silver and realize the connection between silver and fiber; with the assistant of ultrasonic wave, dipping the treated textile into the ethanol-water solution of with dissolved AgNO3 to let silver grow on fiber surface at room temperature. This invention improves the dispersion and adhesion force of Ag+ in textile with simple process to enhance its prevention against electromagnetic radiation, thermal conduction and antibacterial property greatly.

Description

technical field [0001] The invention relates to a method for growing superfine silver particles in textile fibers in situ by adopting an in-situ synthesis process, so as to improve the anti-electromagnetic radiation, heat conduction, antibacterial and other properties of the textiles. Background technique [0002] Electromagnetic radiation can cause serious damage to the nervous system, immune system, circulatory system and reproductive system functions of the human body. Therefore, the protection of electromagnetic radiation has been paid more and more attention to by people, and the development of anti-electromagnetic radiation products is imminent. At present, several main approaches to the development of anti-electromagnetic radiation textiles are: 1. Blending and interweaving of metal fibers: use relatively thin metal fibers to achieve the purpose of anti-electromagnetic radiation by blending or interweaving. At present, most anti-electromagnetic radiation products bel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M23/00D06M11/65D06M11/83
Inventor 陈建军李晔王亦彤姚奎鸿
Owner ZHEJIANG SCI-TECH UNIV
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