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Polyvinyl alcohol/ animal milk nanofiber membrane and preparation method thereof

A technology of nanofiber film and polyvinyl alcohol, which is applied in fiber treatment, spinning solution preparation, filament/thread forming, etc.

Inactive Publication Date: 2016-02-24
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no nanofiber membrane preparation method combining PVA and animal milk, but the biodegradability and biocompatibility of animal milk have been confirmed. Combining PVA and animal milk to make nanofiber membrane can expand the material field of application

Method used

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  • Polyvinyl alcohol/ animal milk nanofiber membrane and preparation method thereof
  • Polyvinyl alcohol/ animal milk nanofiber membrane and preparation method thereof
  • Polyvinyl alcohol/ animal milk nanofiber membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The invention provides a method for preparing a nanofiber membrane, which uses animal milk as a modified material and mixes it with polyvinyl alcohol to prepare a nanofiber membrane, which specifically includes the following steps:

[0037] a) Provide polyvinyl alcohol solution;

[0038] b) mixing the polyvinyl alcohol solution with animal milk to obtain a spinning solution;

[0039] c) Electrospinning the spinning solution to obtain polyvinyl alcohol / animal milk nanofiber membrane.

[0040] According to the present invention, the polyvinyl alcohol preferably uses polyvinyl alcohol with a molecular weight of 120,000 to 220,000, and the polyvinyl alcohol solution is preferably mixed uniformly with the polyvinyl alcohol and the solvent under closed conditions; the solvent used in the present invention is preferably It is an aqueous solvent, more preferably water, most preferably deionized water, because deionized water basically does not contain any ionic impurities, so ...

Embodiment 1

[0049] Take polyvinyl alcohol powder and mix it with deionized water to make a polyvinyl alcohol solution with a concentration of 5%. Put the mixed solution in a beaker, seal the mouth of the beaker with tinfoil paper, and put the obtained mixed solution into a water bath Stir in a magnetic stirrer. The set temperature of the water-bath magnetic stirring pot is 90° C., the stirring time is 5 hours, and the stirring speed is set at 80 rpm until a completely uniform and transparent solution is formed.

[0050] Take out the mixed polyvinyl alcohol solution from the water bath magnetic stirring pot, add a certain amount of milk, so that the mass ratio of polyvinyl alcohol and milk is 80 / 20, put it into a magnetic stirrer and stir at room temperature for 2 hours, so that The milk and the mixture are thoroughly mixed to form a homogeneous solution.

[0051] The electrospinning process is as follows:

[0052] Step 1: Adjust the ambient temperature and humidity in the operating room...

Embodiment 2

[0060] Take polyvinyl alcohol powder and mix it with deionized water to make a polyvinyl alcohol solution with a concentration of 10%. Put the mixed solution in a beaker, seal the mouth of the beaker with tinfoil paper, and put the obtained mixed solution into a water bath Stir in a magnetic stirrer. The set temperature of the water-bath magnetic stirring pot is 90° C., the stirring time is 5 hours, and the stirring speed is set at 80 rpm until a completely uniform and transparent solution is formed.

[0061] Take out the mixed polyvinyl alcohol solution from the water-bath magnetic stirring pot, add a certain amount of milk, so that the mass ratio of polyvinyl alcohol and milk is 80 / 20, put it into a magnetic stirrer and stir at room temperature for 3 hours, so that The milk and the mixture are thoroughly mixed to form a homogeneous solution.

[0062] The electrospinning process is as follows:

[0063] Step 1: Adjust the ambient temperature and humidity in the operating roo...

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Abstract

The invention discloses a polyvinyl alcohol / animal milk nanofiber membrane. A preparation method comprises a) providing a polyvinyl alcohol solution; b) mixing the polyvinyl alcohol solution with animal milk, to obtain a spinning solution; c) performing electrostatic spinning on the spinning solution, to obtain the polyvinyl alcohol / animal milk nanofiber membrane. The preparation method makes the nanofiber membrane which has good healthcare function and has good degradation property, and the nanofiber membrane can be applied in fields of medical treatment, sanitation, health, and health care, and related fields.

Description

technical field [0001] The invention relates to the field of membrane technology and preparation, in particular to a polyvinyl alcohol / animal milk nanofiber membrane and a preparation method thereof. Background technique [0002] Nanofibers have ultra-high specific surface area, large aspect ratio, high porosity and high surface cohesion, and have been successfully applied in many fields as excellent membrane materials. As a filter separation material, nanofiber materials have high filtration efficiency and low air resistance, and have natural advantages when used as a filter medium. According to the shape and size of the material to be filtered, effectively reducing the size of the filter material channels and pores can greatly improve the filtration efficiency. . It is used as a biomedical material for tissue engineering, wound healing, drug release and delivery, and nano-scale bionic fibers can also be prepared. This fiber can be made into a bandage, which can be natural...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H1/413D04H1/728D01D1/02D01D5/00
Inventor 张岩张传正王萍何吉欢
Owner SUZHOU UNIV
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