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Preparation method of dopamine modified nano-silver textile fabric

A technology of textile fabrics and nano-silver, applied in textiles and papermaking, liquid-repellent fibers, fiber treatment, etc., to achieve the effects of high production efficiency, high fastness, and low cost

Inactive Publication Date: 2016-03-30
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the research is mainly focused on the chemical preparation process of nano-silver particles, and there is no report on the preparation of nano-silver multifunctional textile fabrics by microwave in situ reduction after pretreatment of dopamine fabrics.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of dopamine modified nano-silver textile fabric
  • Preparation method of dopamine modified nano-silver textile fabric
  • Preparation method of dopamine modified nano-silver textile fabric

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preparation example Construction

[0030] The preparation method of described nano-silver textile fabric is characterized in that, first textile fabric is pretreated with dopamine, and then AgNO 3 Add it into distilled water, and add dopamine pre-treated textile fabric, then microwave for a certain period of time, take it out and turn it every 1 minute, and finally wash and dry the textile fabric.

[0031] The preparation method of described nano-silver textile fabric, is characterized in that, described textile fabric is at least one in natural fiber fabric or chemically synthesized textile fabric; Described modifier is dopamine; Described preparation method adopts microwave method .

[0032] The preparation method of the nano-silver textile fabric is characterized in that the dopamine pretreatment method is: dissolving dopamine in deionized water, adding tris to the solution to adjust the pH to 7-10, dopamine and textile The mass ratio of the fabric is 0.1~10, the cloth sample is put into the solution and so...

Embodiment 1

[0042] The bamboo pulp fiber fabric with a size of 5cm×5cm was ultrasonically cleaned with acetone and ethanol for 30min respectively, and the fabric was taken out and dried naturally in a ventilated place; a piece of bamboo pulp fiber fabric cleaned with ethanol and acetone was impregnated with trimethylolamino methane to adjust the pH to 8.5 in a dopamine solution with a concentration of 3 g / l, let it stand for 24 hours, take it out, wash it with deionized water, and then dry it at 80°C. Put the bamboo pulp fiber fabric pretreated by dopamine in a silver nitrate solution with a concentration of 2g / l, heat it in a microwave for 3 minutes, and turn it once every minute to ensure that the cloth surface is evenly coated with nano-silver. Remove to dry.

[0043] The microstructure and macroscopic properties of the obtained nano-silver bamboo pulp fiber fabric are as follows.

[0044] 1. Morphology of nano-silver particles:

[0045] figure 1 A scanning electron microscope (SEM)...

Embodiment 2

[0053] The wool fabric with a size of 5cm×5cm was ultrasonically cleaned with acetone and ethanol for 30min respectively, and the fabric was taken out and dried naturally in a ventilated place; a piece of bamboo pulp fiber fabric cleaned with ethanol and acetone was soaked in a tris hydroxymethyl aminomethane conditioned pH to 8.5 in a dopamine solution with a concentration of 3 g / l, take it out after standing for 12 hours, wash with deionized water, and then dry at 80°C. Place the bamboo pulp fiber fabric pretreated by dopamine in a silver nitrate solution with a concentration of 2g / l, heat it in a microwave for 3 minutes, and turn it once every minute to ensure that the fabric surface is evenly coated with nano-silver. Remove to dry.

[0054] Morphological analysis of silver nanoparticles:

[0055] Figure 5 A scanning electron microscope (SEM) photograph of the nanosilver wool fabric. Depend on Figure 5 It can be seen that the nano-silver particles are tightly packed o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention belongs to the field of multifunctional textile fabrics and particularly relates to preparation of a multifunctional nano-silver textile fabric with antibacterial and water-repellent properties. The nano-silver textile fabric provided by the invention is prepared from raw materials including silver nitrate, a modifying agent and a textile fabric, wherein the mass ratio of the modifying agent to the silver nitrate is 1-50 and the mass of the silver nitrate used in each square meter of the textile fabric is 1g-50g. According to the multifunctional nano-silver textile fabric, dopamine is used as the modifying agent and used for carrying out pre-treatment on the textile fabric; a microwave method is used for preparing and reducing nano silver on the surface of a textile in situ; the multifunctional nano-silver textile fabric has the characteristics of environmental friendliness, high production efficiency, strong nano silver binding force, good repeatability and the like; and the obtained multifunctional nano-silver textile fabric has functional properties of bacterium resistance, water repellency, ultraviolet resistance and the like.

Description

technical field [0001] The invention belongs to the field of multi-functional textile fabrics, in particular to dopamine-modified in-situ reduction nano-silver functional textile fabrics. Background technique [0002] In addition to the surface effect, small size effect, strong catalytic efficiency and macroscopic quantum tunneling effect of general nanomaterials, silver nanoparticles have many special chemical and physical properties superior to conventional solid substances, and also have unique catalytic properties. Biocompatibility and better sensing, among which the most excellent performance is the antibacterial property of nano-silver. With the development of science and technology and the continuous improvement of people's living standards, nano-silver textile fabrics are favored by people. The application prospects of nano-silver materials in low-temperature superconductivity, anti-static, antibacterial, etc. are very broad. Applying nano-silver materials to the su...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M11/83D06M101/06D06M101/12
CPCD06M11/83D06M2101/06D06M2101/12D06M2200/12
Inventor 郭荣辉彭灵慧兰建武
Owner SICHUAN UNIV
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