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Preparation method of antibacterial nanofiber membrane

A nanofiber film and nanoparticle technology, which is applied in the processing of textile materials, continuous processing of textile materials, textiles and papermaking, etc., can solve the problems of poor mechanical properties of nanofibers, poor resistance to rubbing and anti-pollution performance, and achieve film formation The effect of good uniformity, overcoming poor mechanical properties, and simple operation

Active Publication Date: 2015-12-30
上海展恒环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to enhance the antibacterial properties of existing nanofiber membranes, overcome the shortcomings of poor mechanical properties of nanofibers, poor resistance to rubbing and poor anti-pollution performance, and disclose a preparation method of antibacterial nanofiber membranes

Method used

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preparation example Construction

[0015] The preparation method of a kind of antibacterial nanofiber membrane of the present invention comprises the preparation of nanofiber membrane, the preparation of bactericide solution and the modification nanofiber membrane of bactericide solution, and described antibacterial nanofiber membrane is to soak nanofiber membrane in the bactericide of different concentration The nanofibrous membrane is formed in an organic monomer or organic monomer and inorganic fungicide solution through polymerization reaction, or is directly soaked in a polymer solution or a polymer and inorganic mixed solution of a fungicide solution Film-forming, described preparation method comprises the following steps:

[0016] A. Step (1) Prepare fungicide solution:

[0017] (a) Dissolving or dispersing 0.1-20 parts by weight of fungicide powder or fungicide solution in water, controlling the temperature at 20-50°C, and stirring for 1-3 hours;

[0018] (b) Add antibacterial nanoparticles or saline s...

Embodiment 1

[0031] A preparation method of dopamine polyacrylonitrile nanofiber membrane, comprising the following steps:

[0032] A. Step (1) Preparation of dopamine solution:

[0033] (a) Dissolve 0.394g of Tris in 250g of water, then add 5g of silver nanoparticles, and then disperse by ultrasonic vibration for 30 minutes;

[0034] (b) Add 0.5g of dopamine to the solution, adjust the pH to 8.5, and stir evenly;

[0035] B. Step (2) Preparation of polyacrylonitrile electrospinning solution and preparation of polyacrylonitrile nanofiber membrane:

[0036] (a) Dissolving polyacrylonitrile in N,N-dimethylformamide solvent under the action of a magnetic stirrer, stirring for 10 to 24 hours until a uniform and clear polyacrylonitrile spinning solution appears;

[0037] (b) The configured polyacrylonitrile spinning solution is loaded into the spinneret, and spun on the non-woven fabric substrate at a humidity of 20-50% and a temperature of 20-50°C. The spinning process parameters are: spinni...

Embodiment 2

[0044] A kind of preparation method that has zinc oxide-organosilicon quaternary ammonium salt polyacrylonitrile nanofiber film, comprises the following steps:

[0045] A. Step (1) Preparation of organosilicon quaternary ammonium salt solution: disperse 5 g of zinc oxide nano-ions in 100 g of alcohol aqueous solution, then disperse by ultrasonic vibration for 30 minutes, and then add 5 g of organosilicon quaternary ammonium salt;

[0046] B. Step (2) Preparation of polyacrylonitrile electrospinning solution and preparation of polyacrylonitrile nanofiber membrane:

[0047] (a) Dissolving polyacrylonitrile in N,N-dimethylformamide solvent under the action of a magnetic stirrer, stirring for 10 to 24 hours until a uniform and clear polyacrylonitrile spinning solution appears;

[0048] (b) The configured polyacrylonitrile spinning solution is loaded into the spinneret, and spun on the non-woven fabric substrate at a humidity of 20-50% and a temperature of 20-50°C. The spinning pro...

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Abstract

The invention provides a preparation method of an antibacterial nanofiber membrane. The method comprises the procedures of preparation of a nanofiber membrane, preparation of germicide solutions and modification of the nanofiber membrane by the germicide solutions. The method is characterized in that the antibacterial nanofiber membrane is prepared by soaking the nanofiber membrane in the germicide solutions of different concentrations; the nanofiber membrane is formed by being subjected to a polymerization reaction in an organic monomer or a solution of the organic monomer and an inorganic germicide, or is formed by being directly soaked in a polymer solution or a germicide solution of a polymer and an inorganic mixed solution. The preparation method comprises the following steps: step (1), preparing the germicide solutions; step (2), preparing a polymer electrostatic spinning solution and preparing the nanofiber membrane; step (3), modifying the nanofiber membrane by the germicide solutions; an obtained hierarchical-pore nanofiber cross-linked-structure thin film of a core-shell structure is an antibacterial nanofiber membrane finished product.

Description

technical field [0001] The invention relates to a preparation method of a fiber membrane, in particular discloses a preparation method of an antibacterial nanofiber membrane, which is applied in fields requiring antibacterial functions such as medicine, air filtration, and water treatment. Background technique [0002] Today in the 21st century, the development of science and technology has made outstanding contributions to the survival and development of human beings, but human beings have ignored the synergy between technological development and environmental issues. The natural ecological environment has been seriously damaged, and human health has been greatly threatened. The SARS in 2003, various bird flus and bacterial viruses in the later period caused human beings to face unprecedented disasters. Therefore, people began to have extremely high requirements for antibacterial in terms of food, drink, housing, transportation, antibacterial textiles, etc. [0003] Due t...

Claims

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Application Information

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IPC IPC(8): D04H1/4382D04H1/728D06B21/00D06B9/00
Inventor 张秀芳赵炯心朱志高柴明飞
Owner 上海展恒环保科技有限公司
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