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A novel composite nanofibrous membrane and its preparation method and application

A composite nanofiber, a new type of technology, applied in textiles, papermaking, non-woven fabrics, etc., can solve problems such as limited use and single function, and achieve the effect of clear principle, short process flow, and prevention of vitamin loss

Active Publication Date: 2016-01-20
HEYE HEALTH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent with the publication number CN101638830 announced a preparation method of a nanofiber membrane on June 15, 2011, using chitin and curcumin as raw materials to make a nanofiber membrane for antibacterial. New raw materials are used to make nanofibrous membranes with new functions, but their functions are single and their uses are limited

Method used

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  • A novel composite nanofibrous membrane and its preparation method and application
  • A novel composite nanofibrous membrane and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0039] (1) Dissolve the weighed polyvinyl alcohol with an average degree of polymerization of 500-3000 and a degree of alcoholysis of 65-99% in a mixed solution of acetone and DMAc, wherein the volume ratio of acetone and DMAc is 5:3 , configured into a polyvinyl alcohol spinning solution with a mass fraction of 15%, and stirred to dissolve it;

[0040] (2) Add the weighed vegetable tannin into the dissolved spinning solution, and the vegetable tannin accounts for 1% of the total mass of the vegetable tannin and the organic solvent;

[0041] (3) Treat the mixed spinning solution on an ultrasonic processor for 1 min;

[0042] (4) Inject the processed mixed spinning solution into the liquid storage tube of the electrospinning device, fix it on the micro-syringe pump, the inner diameter of the capillary is 0.5mm, and the electrospinning process conditions are: voltage 18kV, flow rate 0.5ml / h; The composite nanofiber membrane was received by the copper foil plate receiving metho...

Embodiment 2

[0045] (1) Dissolve the weighed polylactic acid in the methylene chloride solution to prepare a spinning solution with a mass fraction of 5%, and stir the spinning solution on a magnetic stirrer for 10 hours;

[0046] (2) Add polyphenolic substances to the above spinning solution, stir evenly to obtain a mixed spinning solution accounting for 5% of the total mass of the polyphenolic substances and the organic solvent, and the polyphenolic substances are Vegetable tannins and grape polyphenols mixed at a ratio of 1:1;

[0047] (3) Put the mixed spinning solution on the ultrasonic processor for 60 minutes;

[0048] (4) Inject the processed spinning liquid into the liquid storage tube of the electrospinning device, and fix it on the micro-syringe pump. The inner diameter of the capillary is 0.6mm. The electrospinning process conditions are: voltage 6kV, flow rate 0.05ml / h; Accept the composite nanofiber membrane with the aluminum foil roller receiving method, and the receiving ...

Embodiment 3

[0051] (1) Dissolve the weighed regenerated silk fibroin in 88% formic acid solution to prepare a spinning solution with a mass fraction of 20%;

[0052] (2) Weighed plant tannins and grape polyphenols are added to the dissolved spinning solution at a mass ratio of 1:0.5, with a mass fraction of 10%. The mass fraction is the proportion of polyphenols to polyphenols and the fraction of the total mass of the organic solvent;

[0053] (3) Put the mixed spinning solution on the ultrasonic processor for 300 minutes;

[0054] (4) Pour the processed spinning liquid into the liquid storage tube of the electrospinning device, and fix it on the micro-syringe pump. The inner diameter of the capillary is 0.7mm. The electrospinning process conditions are: voltage 30kV, flow rate 0.8ml / h; The composite nanofiber membrane is received by the aluminum foil plate receiving method, and the receiving distance is 20cm.

[0055] The diameter size and distribution of the prepared composite nanofi...

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Abstract

The invention relates to a nanofiber membrane and particularly relates to a novel composite nanofiber membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) dissolving any one of polyvinyl alcohol, polylactic acid and regenerated silk fibroin in an organic solvent to prepare a spinning solution with the mass fraction of 5-20 percent; (2) adding polyphenol substances to the spinning solution, and uniformly stirring to obtain a mixed spinning solution which accounts for 1-7 percent of the total mass of the polyphenol substances and the organic solvent, wherein the polyphenol substances are one or more of vegetable tannin, apple polyphenol and grape polyphenol; (3) carrying out ultrasonic treatment on the mixed spinning solution for 1-600 minutes; and (4) carrying out electrostatic spinning on the mixed spinning solution and collecting to obtain the required composite nanofiber membrane. After subjected to electrostatic spinning, the composite nanofiber membrane is smooth in surface, continuous and uniform, has the diameter of between 100nm and 800nm and can be applied to the fields of medical dressing, makeup facial masks, tea bags, controlled release of targeted drugs, food preservation and sewage purification.

Description

technical field [0001] The invention relates to a nanofiber membrane, in particular to a novel composite nanofiber membrane and its preparation method and application. Background technique [0002] Combining organic small molecular substances with fiber polymer matrix by means of solution blending, melt blending, etc. is a modification method of nanofibers. The patent with the publication number CN101638830 announced a preparation method of a nanofiber membrane on June 15, 2011, using chitin and curcumin as raw materials to make a nanofiber membrane for antibacterial. New raw materials have been found for the production of nanofibrous membranes with new functions, but their functions are single and their uses are limited. In order for nanofibrous membranes to play a more important role in more fields, it is necessary to find more versatile raw materials and develop methods suitable for making them into fibrous membranes. Contents of the invention [0003] One of the obje...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4382D04H1/728
Inventor 胡立江方志财蔡京昊李俊
Owner HEYE HEALTH TECH CO LTD
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