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Method for preparing antibacterial fiber membrane

A technology of fiber membrane and antibacterial properties, which is applied in the field of preparation of antibacterial fiber membranes, can solve the problems of poor mechanical strength and toughness, shorten the service life of membranes, and difficulty in molecular chain rotation, achieve high porosity, reduce viscosity, prevent pure The reduced effect of water flux

Active Publication Date: 2016-08-10
太湖县市场监督检验所(太湖县功能膜检测研究院)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyacrylonitrile is a hydrophobic material, and the membrane prepared by it is prone to membrane fouling, shortens the service life of the membrane, increases the investment cost, and its molecular chain rotation is difficult, and the mechanical strength and toughness of the obtained membrane are poor, which limits its further application. In the actual application process, it is often necessary to modify it

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of a kind of antibacterial fiber film that the present invention proposes, comprises the following steps:

[0023] S1, prepare composite antibacterial agent; Wherein, described composite antibacterial agent is made of N-(4-hydroxyl-3-methoxybenzyl) acrylamide, 2-hydroxypropyl methacrylate, N,N-dimethylamino Polymerized with ethyl methacrylate and vinyltriethoxysilane modified nano-zinc oxide;

[0024] S2, adding polyacrylonitrile, cellulose diacetate and glucose into a mixed solvent of N,N-dimethylformamide and acetone, stirring and dissolving to obtain a mixed solution;

[0025] S3. Add composite antibacterial agent, polyvinyl alcohol, laponite, silver ion-loaded zeolite molecular sieve, nano-titanium dioxide, alumina sol, calcium chloride and dilauryl thiodipropionate into water and mix evenly, then add the mixed solution and mix Uniform, after static defoaming, the raw silk is obtained by electrospinning in an electrospinning device, wherein, ...

Embodiment 2

[0028] A kind of preparation method of antibacterial fiber film that the present invention proposes, comprises the following steps:

[0029] S1, prepare composite antibacterial agent; Wherein, described composite antibacterial agent is made of N-(4-hydroxyl-3-methoxybenzyl) acrylamide, 2-hydroxypropyl methacrylate, N,N-dimethylamino Polymerized with ethyl methacrylate and vinyltriethoxysilane modified nano-zinc oxide;

[0030] S2, adding polyacrylonitrile, cellulose diacetate and glucose into a mixed solvent of N,N-dimethylformamide and acetone, stirring and dissolving to obtain a mixed solution;

[0031] S3. Add composite antibacterial agent, polyvinyl alcohol, laponite, silver ion-loaded zeolite molecular sieve, nano-titanium dioxide, alumina sol, calcium chloride and dilauryl thiodipropionate into water and mix evenly, then add the mixed solution and mix Uniform, after static defoaming, the raw silk is obtained by electrospinning in an electrospinning device, wherein, in t...

Embodiment 3

[0034] A kind of preparation method of antibacterial fiber film that the present invention proposes, comprises the following steps:

[0035] S1, prepare composite antibacterial agent; Wherein, described composite antibacterial agent is made of N-(4-hydroxyl-3-methoxybenzyl) acrylamide, 2-hydroxypropyl methacrylate, N,N-dimethylamino Ethyl methacrylate, vinyltriethoxysilane modified nano-zinc oxide is polymerized; the preparation process of the composite antibacterial agent is as follows: N-(4-hydroxyl-3-methoxybenzyl) Add acrylamide into dimethylformamide and stir evenly, heat up to 65°C, blow nitrogen, add 2-hydroxypropyl methacrylate aqueous solution, N,N-dimethylaminoethyl methacrylate aqueous solution, vinyl triethoxy silane-modified nano-zinc oxide and ammonium persulfate, among which, N-(4-hydroxy-3-methoxybenzyl)acrylamide, 2-hydroxypropyl methacrylate, N,N-dimethylaminomethyl The weight ratio of ethyl acrylate and vinyl triethoxysilane modified nano-zinc oxide is 3:5:...

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PUM

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Abstract

The invention discloses a method for preparing an antibacterial fiber membrane. The method comprises the following steps: preparing a complex antibacterial agent by using N-(4-hydroxy-3-methoxybenzyl)acrylamide, 2-hydroxypropyl methacrylate, N, N- (dimethylamino)ethyl methacrylate, and vinyltriethoxysilane-modified nano zinc oxide; adding polyacrylonitrile, cellulose diacetate and glucose to a mixed solvent to obtain a mixed solution; adding the complex antibacterial agent, poly vinyl alcohol, laponite, silver ion loaded zeolite molecular sieve, nano titanium dioxide, alumina sol, calcium chloride and dilauryl thiodipropionate to water to be uniformly mixed, adding the mixed solution and then conducting electrostatic spinning to obtain a raw yarn, putting the raw yarn in water to be soaked and dried. The method for preparing the antibacterial fiber membrane provided by the invention has the advantages of simple process, mild conditions, good antibacterial properties, excellent stain resistance, high mechanical strength and toughness, and long service life.

Description

technical field [0001] The invention relates to the technical field of membrane materials, in particular to a preparation method of an antibacterial fiber membrane. Background technique [0002] Polyacrylonitrile has organic solvent resistance, light resistance, weather resistance, mold resistance, good chemical stability, thermal stability and solution spinning film processing performance, etc., and polyacrylonitrile has a wide range of sources and is cheap. An ideal membrane material, has been widely used in ultrafiltration, dialysis, pervaporation and other fields. However, polyacrylonitrile is a hydrophobic material, and the membrane prepared by it is prone to membrane fouling, shortens the service life of the membrane, increases the investment cost, and its molecular chain rotation is difficult, and the mechanical strength and toughness of the obtained membrane are poor, which limits its further application. It is often necessary to modify it in the actual application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/43D01F1/10D01F1/08D01F6/54D01D5/00
CPCD01D5/003D01F1/08D01F1/10D01F1/103D01F6/54D04H1/43D04H1/728
Inventor 魏松
Owner 太湖县市场监督检验所(太湖县功能膜检测研究院)
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