Sterilizing and virus-killing liquid containing nano short fibers and preparation method thereof

A virus-killing and nanofiber membrane technology, applied in the fields of botanical equipment and methods, fungicides, biocides, etc., can solve the problems of cell aging, easy agglomeration, poor particle dispersion uniformity, etc. The effect of large surface area and strong bond fastness

Pending Publication Date: 2021-01-15
上海迅江科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Hypochlorous acid series and alcohol series bactericidal and virus-killing sprays will volatilize in a short time after spraying on solid surfaces, resulting in the loss of bactericidal and virus-killing effects, and it is impossible to achieve long-term bactericidal and virus-killing. At the same time, hypochlorous acid has strong oxidizing properties and will Oxidation of human cells leads to cell aging, cancer, etc. Spraying alcohol into the air will cause discomfort to children and pregnant women, so it cannot be used in certain environments
Nano-organic / inorganic antibacterial and bactericidal particles are easy to agglomerate, resulting in poor particle dispersion uniformity. When sprayed on the surface of objects, some places have antibacterial and bactericidal functions, and some places do not. In addition, nano-organic / inorganic antibacterial and bactericidal particles have stronger toxicity , easy to penetrate into human cells and cause harm to the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for preparing a bactericidal and virus-killing liquid containing nano-short fibers, the steps are as follows:

[0028] (1) prepare nanofibrous film;

[0029] The bactericidal and virus-killing substance (p-chloro-m-xylenol), binder (polyvinyl butyral), polymer X (polyacrylonitrile) and solvent (DMF) are prepared into a spinning solution and then electrospun Obtain the nanofiber film that sterilizes and kills the virus substance and the binding agent partly covers on the surface of the nanofiber;

[0030] The process parameters of electrospinning are: the concentration of polymer X in the spinning solution is 30wt%, the mass of the bactericidal and virus-killing substance accounts for 0.1wt% of the sum of the mass of the bactericidal and virus-killing substance, binder, and polymer X, The mass of the binder accounts for 0.1wt% of the mass of the bactericidal and virus-killing substance, the binder, and the polymer X, the spinning voltage is 20kV, the receiving ...

Embodiment 2

[0038] A method for preparing a bactericidal and virus-killing liquid containing nano-short fibers, the steps are as follows:

[0039] (1) prepare nanofibrous film;

[0040] Bactericidal and virucidal substances (sodium dichloroisocyanurate), adhesive (acrylic adhesive, brand: allnex, grade: Valbond 8020), polymer X (polyvinyl alcohol) and solvent (diacetone alcohol) Electrospinning is carried out after the spinning solution is prepared to obtain a nanofiber film in which the bactericidal and virus-killing substances and the binder partially cover the surface of the nanofiber;

[0041] The process parameters of electrospinning are: the concentration of polymer X in the spinning solution is 30wt%, and the mass of the bactericidal and virus-killing substance accounts for 5.5wt% of the sum of the mass of the bactericidal and virus-killing substance, binder, and polymer X, The mass of the binder accounts for 0.6wt% of the sum of the mass of the bactericidal and virus-killing subs...

Embodiment 3

[0049] A method for preparing a bactericidal and virus-killing liquid containing nano-short fibers, the steps are as follows:

[0050] (1) prepare nanofibrous film;

[0051] Bactericidal and virus-killing substances (composite double-chain quaternary ammonium salt), binder (polyurethane binder, manufacturer: Jingjiang Yudong Chemical Manufacturing Co., Ltd., brand: YD-203), polymer X (nylon) and solvent (formic acid) is made into spinning solution and carries out electrospinning to obtain the nanofiber membrane that sterilizing and virus-killing substance and binding agent partially cover on the nanofiber surface;

[0052] The process parameters of electrospinning are: the concentration of polymer X in the spinning solution is 30wt%, the mass of the bactericidal and virus-killing substance accounts for 12.5wt% of the sum of the mass of the bactericidal and virus-killing substance, the binder, and the polymer X, The mass of the binder accounts for 1 wt% of the sum of the mass ...

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Abstract

The invention relates to a sterilizing and virus-killing liquid containing nano short fibers and a preparation method thereof. The sterilizing and virus-killing liquid containing the nano short fiberscomprises a dispersion medium and the nano short fibers dispersed in the dispersion medium, wherein the surfaces of the nano short fibers are covered with a sterilizing and virus-killing substance and a binder, or the sterilizing and virus-killing liquid containing the nano short fibers further contains lysozyme and a dispersing agent. The preparation method comprises the steps of firstly, preparing a nanofiber membrane of which the surfaces of nanofibers are partially covered with a sterilizing and virus-killing substance and a binder by taking the sterilizing and virus-killing substance, the binder and a polymer X as raw materials, then smashing fibers in the nanofiber membrane into nano short fibers, and finally, mixing the nano short fibers with a dispersion medium, lysozyme and a dispersing agent to prepare the sterilizing and virus-killing liquid containing the nano short fibers. The method disclosed by the invention is simple, and the prepared sterilizing and virus-killing liquid containing the nano short fibers is uniform in dispersion, capable of sterilizing and killing viruses for a long time, safe, non-toxic and harmless to a human body.

Description

technical field [0001] The invention belongs to the technical field of antibacterial liquids, and relates to a bactericidal and virus-killing liquid containing nano-short fibers and a preparation method thereof. Background technique [0002] Most of the bactericidal and virus-killing sprays currently used are hypochlorous acid series, alcohol series, and nano-organic / inorganic antibacterial and bactericidal particle dispersions. [0003] Hypochlorous acid series and alcohol series bactericidal and virus-killing sprays will volatilize in a short time after spraying on solid surfaces, resulting in the loss of bactericidal and virus-killing effects, and it is impossible to achieve long-term bactericidal and virus-killing. At the same time, hypochlorous acid has strong oxidizing properties and will Oxidation of human cells leads to cell aging, cancer, etc. Spraying alcohol into the air will cause discomfort to children and pregnant women, so it cannot be used in certain environm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N25/10A01N31/08A01N43/66A01N33/12A01N37/12A01N47/44A01N63/50A01P1/00A01P3/00
CPCA01N25/04A01N25/10A01N31/08A01N33/12A01N37/12A01N43/66A01N47/44A01N63/50
Inventor 斯阳赵兴雷王鹏贾红伟
Owner 上海迅江科技有限公司
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