Antibiotic nanometer fibrous material and method for preparing the same

A technology of nanofiber and antibacterial agent, applied in the field of antibacterial superfine fiber material preparation, to achieve the effects of good air permeability, good bactericidal effect, and simple processing technology

Inactive Publication Date: 2004-01-14
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It limits the application of fiber materials in filtering ultrafine particles and extremely fine particles and aerosols containin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The preparation method of the antibacterial nanofiber material of the present invention is: one or more macromolecules are dispersed or dissolved in a solvent to become a transparent solution or mixture, and antibacterial agent ultrafine particles with a particle size of less than 20 microns are dispersed in the above solution to obtain electric Spin the mixture, or melt and mix one or more polymers with antibacterial ultrafine particles to obtain the electrospun mixture, then add it to the storage tank, connect it to one or more injection heads through a syringe pump and a catheter, and the injection head is connected to high pressure Electric field, the voltage is 3 kV-120 kV. The receiving part is grounded, and then electrospinning or electrospraying is performed to obtain a polymer ultrafine fiber material containing antibacterial agent ultrafine particles. Attached to one or more jet heads may be a single electrospinning mixture or multiple electrospinning mixtures...

Embodiment 1

[0030] Preparation of antibacterial nanofiber materials: polymers can be polyolefin, polyethylene, polypropylene, polybutadiene, polyisoprene, polyester, polyethylene terephthalate, polybutylene terephthalate Glycol ester, polybutylene terephthalate, polycarbonate, polyamide, nylon 6, nylon 66, nylon 1010, nylon 610, polyether, polyoxyethylene, polyoxypropylene, polyhalogenated hydrocarbon, poly Styrene, polymethylstyrene, polyacrylonitrile, polyvinyl acetate, polyvinyl alcohol, polyacrylic acid, polyacrylate, polymethacrylic acid, polymethacrylate, polyimide, polyphenylene ether, polypara p-phenylenediamine phthalate, poly-m-phenylenediamine isophthalate.

[0031] For example, dissolve 2 grams of nylon 6 in 20 ml of formic acid to make a 10% (mass fraction) polymer solution, add 0.4 grams of silver-containing zeolite ultrafine particles, the particle size is about 100 nanometers, disperse evenly, and pass through the syringe pump Connect the nozzle to the nozzle, the nozzle ...

Embodiment 2

[0033] Preparation of antibacterial nanofiber material: Dissolve 5 grams of polystyrene in 50 milliliters of dichloromethane, add 0.2 grams of silver-containing zeolite ultrafine particles, the particle size is about 100 nanometers, disperse evenly, and connect to 6 via a syringe pump and a catheter A spray head, the spray head is connected to a high-voltage electric field, the distance between the spray head and the copper mesh receiver is controlled at about 6cm, the copper mesh is grounded, and the voltage is about 10kv. Electrospinning is performed to obtain polystyrene nanofiber materials.

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Abstract

An antibacterial nano-class fibre material contains superfine high-molecular fibres (60-98 wt.%) and antibacterial agent (2-40 wt.%), and is prepared through dispersing or dissolving one or more high-molecular material in solvent to become transparent solution or mixture, dispersing the superfine particle of antibacterial agent (less than 20 microns) in said solution, and electric spinning. It can be used as protecting material, disinfecting filter material and tissue covering material for repairing tissue or promoting healing of tissue.

Description

1. Technical field: [0001] The invention is an antibacterial nanofiber material and a preparation method thereof, belonging to the technical field of antibacterial superfine fiber material preparation. 2. Background technology: [0002] Protective and filter materials can be made of natural fibers or synthetic fabrics, and non-woven fabrics can also be used. Cotton masks are the most common material for protecting particles from entering the respiratory tract. Medical masks are often made of non-woven fabrics, and the diameter of the fibers is about 20 microns. The pores between the fibers are larger, and the filtering effect on fine particles is not very good. [0003] Protective clothing is often made of non-woven fabrics, and the pores between the fibers are also relatively large. A kind of protective material is that a plastic film material etc. is sandwiched in a fiber fabric to impart a heat-retaining function. Protective clothing made of impermeable plastic film mat...

Claims

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Application Information

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IPC IPC(8): D01F1/10
Inventor 李新松姚琛浦跃朴尹立红
Owner SOUTHEAST UNIV
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