Method for preparing antibacterial super-hydrophobic fabric having stable properties by using silver-deposited nanoparticles

A technology of silver nanoparticles and preparation performance, which can be used in plant fibers, textiles and papermaking, and improved hand-feeling fibers, etc., can solve the problems of uneven surface of superhydrophobic film and superhydrophobic fabric, single properties of superhydrophobic fabric, and high equipment requirements. , to achieve the effect that the roughness is not easy to change, the surface is uniform, and the equipment requirements are low.

Active Publication Date: 2018-11-06
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The disadvantage of the superhydrophobic membrane prepared by this method is that the surface of the superhydrophobic fabric prepared by this method is uneven, and the requirements for equipment are relatively high during the operation process, which is difficult to control and has a single property.
[0011] Traditional superhydrophobic fabrics have single properties and often only focus on their water repellency, but people hope that fabrics have antibacterial properties

Method used

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  • Method for preparing antibacterial super-hydrophobic fabric having stable properties by using silver-deposited nanoparticles
  • Method for preparing antibacterial super-hydrophobic fabric having stable properties by using silver-deposited nanoparticles
  • Method for preparing antibacterial super-hydrophobic fabric having stable properties by using silver-deposited nanoparticles

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Experimental program
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Effect test

Embodiment 1

[0043] The preparation method of the present embodiment comprises the following steps:

[0044] Step 1. Add 0.7448g EDTA (ethylenediaminetetraacetic acid) into a beaker filled with 100mL deionized water to obtain a solution A with a mole fraction of 2%. Dissolve 1.862g EDTA in 100mL of water to obtain a solution B with a mole fraction of 5%. Soak the clean fabric in solution A for 30 minutes, then soak it in solution B for 30 minutes, and dry it;

[0045] Step 2, prepare nano-silver particles with ammonia water, silver nitrate and glucose. The specific process is: drop the ammonia solution into 8mL silver nitrate solution. Precipitation disappears, and silver ammonia solution is obtained;

[0046] Soak the fabric in step 1 in silver ammonia solution, then add 10mL glucose solution, soak for 30 minutes, and then dry; wherein, the concentrations of ammonia solution, silver nitrate solution and glucose solution are all 0.1mol / L. Nano silver particles were prepared by silver mir...

Embodiment 2

[0053] The preparation method of the present embodiment comprises the following steps:

[0054] Step 1. Add 1.4896g EDTA to a beaker containing 200mL deionized water to obtain solution A, dissolve 3.7240g EDTA in 200mL water to obtain solution B, soak the clean fabric in solution A for 20 minutes, and then put Soak in solution B for 30 minutes and dry;

[0055] Step 2, prepare nano-silver particles with ammonia water, silver nitrate and glucose. The specific process is: drop the ammonia solution into 10mL silver nitrate solution. Precipitation disappears, and silver ammonia solution is obtained;

[0056] Soak the fabric in step 1 in silver ammonia solution, then add 15mL glucose solution, soak for 30 minutes, and then dry; wherein, the concentrations of ammonia solution, silver nitrate solution and glucose solution are all 0.2mol / L.

[0057] Step 3. Put the fabric obtained in step 2 into 1.0 g of aluminate in 30 mL of ethanol solution under stirring conditions, dip for two h...

Embodiment 3

[0059] The preparation method of the present embodiment comprises the following steps:

[0060] Step 1. Immerse the clean fabric in 0.3724g EDTA and add it to a beaker filled with 50mL deionized water to obtain solution A. Dissolve 0.931g EDTA in 100mL water to obtain solution B. Immerse the clean fabric in solution A for 30 minutes , and then put into solution B to soak for 20 minutes and dry;

[0061] Step 2, prepare nano-silver particles with ammonia water, silver nitrate and glucose. The specific process is: drop the ammonia solution into 9mL silver nitrate solution. Precipitation disappears, and silver ammonia solution is obtained;

[0062] Soak the fabric in step 1 in silver ammonia solution, then add 12mL glucose solution, soak for 30 minutes, and then dry; wherein, the concentration of ammonia solution, silver nitrate solution and glucose solution are all 0.05mol / L.

[0063] Step 3: Put the fabric obtained in step 2 into 0.4 g of aluminate in 15 mL of ethanol solutio...

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Abstract

A method for preparing antibacterial super-hydrophobic fabric having stable properties by using silver-deposited nanoparticles comprises the steps that a fabric is soaked by adopting an EDTA solutionand then is dried; the dried fabric is impregnated in a silver-ammonia solution, then a glucose solution is added, and soaking and drying are performed; the fabric is put in an ethanol solution of aluminic acid ester under the stirring condition, and soaking and drying are performed to obtain the antibacterial super-hydrophobic fabric. According to the method, EDTA is adopted as a complexing agent, hydroxide radicals on the surface of the fabric can be bound with the EDTA, and silver particles can be complexed with the EDTA, so that the EDTA makes a substrate and the silver particles bound together through chemical bonds, the surface roughness is not likely to change, and the fabric has very good stability. The fabric and the silver particles are tightly grafted together, so that the stability of the fabric is improved. The fabric reacts with the cheap low-surface-energy substance aluminic acid ester easy to obtain, high-price organosilane is replaced, and the cost is reduced. In addition, the fabric has better antibacterial properties.

Description

technical field [0001] The invention belongs to the technical field of preparation of hydrophobic materials, and in particular relates to a method for preparing stable antibacterial superhydrophobic fabrics by depositing silver nanoparticles. Background technique [0002] Fabrics are widely used in daily life, but their defects such as easy wetting and single properties cannot meet people's needs and limit their application range. With the improvement of living standards, people pay more and more attention to the antibacterial properties of materials, which is a hot research topic. Therefore, the preparation of antibacterial superhydrophobic fabrics with stable performance can not only expand the application fields of fabrics, but also meet people's needs. This work has great research significance. [0003] Due to its broad spectrum and strong antibacterial activity, nanosilver has been added as an antibacterial agent to a variety of commodities, including: food packaging, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M13/342D06M13/50D06M101/06
CPCD06M11/83D06M13/342D06M13/50D06M2101/06D06M2200/12D06M2200/50
Inventor 何金梅屈孟男张毅赵彧胡双全王嘉鑫周亦晨马利利
Owner XIAN UNIV OF SCI & TECH
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