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Antibacterial nanofiber membrane as well as preparation method and application thereof

A nanofiber membrane, fiber membrane technology, applied in fiber treatment, biochemical fiber treatment, textile and papermaking, etc., can solve problems such as unfavorable production and promotion, difficult cost control, easy discoloration, etc., and achieve low price, pollution-free energy consumption , good antibacterial effect

Inactive Publication Date: 2021-06-22
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these patents all support nano-silver on the chitosan nanofiber membrane, thereby improving the antibacterial performance of the chitosan nanofiber membrane. Although the antibacterial performance of nano-silver is effective, the price is high, the cost is difficult to control, and it is easy to Discoloration, not conducive to production and promotion

Method used

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  • Antibacterial nanofiber membrane as well as preparation method and application thereof
  • Antibacterial nanofiber membrane as well as preparation method and application thereof
  • Antibacterial nanofiber membrane as well as preparation method and application thereof

Examples

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preparation example Construction

[0023] figure 1 It is a method flowchart of a method for preparing an antibacterial nanofiber membrane according to an exemplary embodiment, the method comprising:

[0024] Step 101, dissolving the purified chitosan in a mixed solvent of 3% acetic acid and dimethyl sulfoxide, and dissolving it with a magnetic stirrer at a temperature of 30° C. for 12 hours to obtain a spinning solution with a concentration of 3.0%, and then Carry out the electrospinning process to described spinning solution, obtain the chitosan nanofiber membrane that average fiber diameter is 188 ± 62nm, the process parameter of described electrospinning process comprises: spinning voltage is 16kV, and receiving distance is 150mm, The spinning rate was 0.6 mL / h.

[0025] Step 102, after crosslinking the chitosan nanofiber membrane with glutaraldehyde vapor for 12 hours, put it into a drying room for vacuum drying, and then put it into a petri dish.

[0026] The chitosan nanofiber membrane after crosslinkin...

Embodiment 1

[0040] (1) the chitosan after the purification is dissolved in the mixed solvent of 3% acetic acid and dimethyl sulfoxide, and dissolves 12h with magnetic stirrer at the temperature of 30 ℃, obtains the spinning solution that concentration is 3.0%, and then Carry out the electrospinning process to described spinning solution, obtain the chitosan nanofiber membrane that average fiber diameter is 188 ± 62nm, the process parameter of described electrospinning process comprises: spinning voltage is 16kV, and receiving distance is 150mm, The spinning rate was 0.6 mL / h.

[0041](2) After cross-linking the chitosan nanofiber membrane with glutaraldehyde vapor for 12 hours, put it into a drying room for vacuum drying, and then put it into a petri dish.

[0042] (3) The copper sulfate solution of 5mL 0.02mol / L, the sodium hydroxide solution of 2.5mL 0.2mol / L, the vitamin C solution of 5mL0.04mol / L are added successively to the place where the chitosan nanofiber membrane is placed. In ...

Embodiment 2

[0045] (1) the chitosan after the purification is dissolved in the mixed solvent of 3% acetic acid and dimethyl sulfoxide, and dissolves 12h with magnetic stirrer at the temperature of 30 ℃, obtains the spinning solution that concentration is 3.0%, and then Carry out the electrospinning process to described spinning solution, obtain the chitosan nanofiber membrane that average fiber diameter is 188 ± 62nm, the process parameter of described electrospinning process comprises: spinning voltage is 16kV, and receiving distance is 150mm, The spinning rate was 0.6 mL / h.

[0046] (2) After cross-linking the chitosan nanofiber membrane with glutaraldehyde vapor for 12 hours, put it into a drying room for vacuum drying, and then put it into a petri dish.

[0047] (3) The copper sulfate solution of 5mL 0.02mol / L, the sodium hydroxide solution of 2.5mL 0.2mol / L, the vitamin C solution of 5mL0.04mol / L are added successively to the place where the chitosan nanofiber membrane is placed. In...

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Abstract

The invention provides an antibacterial nanofiber membrane as well as a preparation method and application thereof, and belongs to the technical field of nano materials. According to the preparation method of the antibacterial nanofiber membrane, a chitosan nanofiber membrane is prepared by adopting an electrostatic spinning method, and a nano cuprous oxide antibacterial agent is prepared on the chitosan nanofiber membrane by adopting an in-situ synthesis method by taking vitamin C beneficial to a human body as a reducing agent; therefore, the chitosan nanofiber membrane contains nano cuprous oxide, and the antibacterial effectiveness and broad spectrum of the chitosan nanofiber membrane are improved; the adopted chitosan resources are rich, and copper sulfate, sodium hydroxide and vitamin C are common substances, so that the raw materials are relatively low in price, the preparation process does not need high-temperature treatment and is simple and convenient, and the technical effects of being low in cost, high in efficiency, free of pollution and low in energy consumption are achieved; and the antibacterial nanofiber membrane has a structure simulating a natural extracellular matrix, and the nano cuprous oxide can be uniformly dispersed on the chitosan nanofiber membrane, so that the antibacterial function is better.

Description

[0001] This application is a divisional application of a Chinese patent application submitted to the China Patent Office on February 5, 2018 with the application number CN201810111002.6 and the title of the invention "An Antibacterial Nanofiber Membrane and Its Preparation Method", the entire contents of which are incorporated by reference incorporated in this application. technical field [0002] The invention relates to the technical field of nanomaterials, in particular to an antibacterial nanofiber membrane and its preparation method and application. Background technique [0003] Chitosan is the second largest polysaccharide after cellulose on the earth, and it is also the only basic amino acid polysaccharide found in nature. Chitosan has good biocompatibility, biodegradability and antibacterial properties, so it is It is widely used in biomedical fields such as medical dressings, hemostatic supplies, anti-adhesion films and tissue engineering scaffold materials. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/42D04H1/728D06M11/42D06M13/123
CPCD04H1/42D04H1/728D06M16/00D06M11/42D06M13/123
Inventor 张葵花颜志勇
Owner JIAXING UNIV