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Preparation method and application of electrospinning nanofiber

A nanofiber, electrospinning technology, applied in electrospinning, application, fiber processing, etc., can solve the problems of short fiber filtration effect not as good as long fiber, easy to produce particle debris, poor filtration effect, etc.

Pending Publication Date: 2018-11-23
SHENZHEN RUXIANGJU TECHCAL DEV LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The diameter of the fiber made by the method of this patent is basically on the micron scale, greater than 1 micron, which is larger than the diameter of nanofibers, and the filtering effect is poor.
At the same time, the fiber made by this patent method is a mixture of melt blown fiber and short fiber. The filtering effect of short fiber is not as good as that of long fiber, and it is easy to produce particle debris. As a material for respirator, it is easy to enter the respiratory tract of the human body.

Method used

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  • Preparation method and application of electrospinning nanofiber
  • Preparation method and application of electrospinning nanofiber
  • Preparation method and application of electrospinning nanofiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Under normal temperature and pressure (15-35° C., 1 standard atmospheric pressure), weigh 0.5 g of chitosan, dissolve it in 10 ml of water, configure a 50 mg / ml solution, and ultrasonicate for 10 minutes until the solution is uniform and transparent. Add 1mg / ml peppermint essential oil and 1mg / ml organic fluorescent compound, stir and oscillate ultrasonically, inject the prepared solution into the syringe of the electrospinning equipment, set the spinning voltage to 18kV, and the propulsion speed of the spinning solution to 2ml / hr / needle, the distance from the spinning needle to the receiving plate is 25cm. Films were prepared by electrospinning equipment. figure 1 It is the electron microscope SEM image of the nanofiber prepared by the solution of 50mg / ml chitosan, peppermint essential oil and organic fluorescent compound when the spinning voltage is 18kV.

Embodiment 2

[0054] Under normal temperature and pressure (15-35°C, 1 standard atmospheric pressure), weigh 1.0 g of gelatin, dissolve it in 10 ml of water, and prepare a 100 mg / ml solution, and ultrasonicate for 10 minutes until the solution is uniform and transparent. Add 0.5mg / ml thymol and 0.5mg / ml organic fluorescent compound, inject the prepared solution into the syringe of the electrospinning equipment, set the spinning voltage to 20kV, and the propulsion speed of the spinning solution to 0.5ml / hr / needle, the distance from the spinning needle to the receiving plate is 25cm. Films were prepared by electrospinning equipment. figure 2 It is an electron microscope SEM image of nanofibers prepared by 100mg / ml gelatin, thymol and organic fluorescent compound solution when the spinning voltage is 20kV.

Embodiment 3

[0056] Under normal temperature and pressure (15-35°C, 1 standard atmospheric pressure), weigh 1.5g of polylactic acid, dissolve it in 10ml of chloroform, make a 150mg / ml solution, and ultrasonicate for 10 minutes until the solution is uniform and transparent. Add 5mg / ml of carvacrol and 5mg / ml of organic fluorescent compound, inject the prepared solution into the syringe of the electrospinning equipment, set the spinning voltage to 22kV, and the propulsion speed of the spinning solution to 0.5ml / hr / needle, the distance from the spinning needle to the receiving plate is 25cm. Films were prepared by electrospinning equipment. image 3 It is the electron microscope SEM image of the nano-spinning layer prepared by the solution of 150mg / ml polylactic acid, carvacrol and organic fluorescent compound when the spinning voltage is 22kV.

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Abstract

The invention relates to a preparation method and application of electrospinning nanofiber. The preparation method is as follows: synthetic and / or natural polymer materials are dissolved in a volatilesolvent under normal temperature and normal pressure, functional substances are added, and nanofibers are obtained by electrospinning; the functional substances comprise, but are not limited to an odor substance, an organic fluorescent compound, a pigment, a temperature sensitive luminescent and color changing material, a cell growth factor, a hemostatic substance, one or a plurality of nutrientsincluding hyaluronic acid, collagen, and the like which promote skin growth. The nanofiber made by electrospinning has the special effects of sterilization, aromatic odor, fluorescent luminescence, multiple colors, temperature sensitive luminescence and color-changing, promoting wound healing, promoting inhibition and interfering with body function, maintaining skin cell vitality and the like. The method can be used in air purification, automotive air purification, fresh air systems, medical, beauty care, and other nanofiber products.

Description

technical field [0001] The present invention relates to nanofiber materials, in particular to a preparation method and application of electrospun nanofibers (hereinafter referred to as "nanofilaments" or "nanospinning") with special effects. Background technique [0002] As people pay more and more attention to health, the market demand for air purification materials, especially filter materials that can effectively block PM2.5 or finer particles, is becoming stronger and stronger. [0003] Electrospinning is a technology that uses a polymer solution or melt to form a jet flow under a strong electric field for spinning. In recent years, electrospinning has attracted more and more attention due to its ultra-fine fiber processing technology. This method saves a lot of money and energy compared to expensive, time-consuming and polluting methods. Electrospinning is used to prepare nanofibers. Due to its nanometer diameter and high porosity, it can efficiently filter small part...

Claims

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Application Information

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IPC IPC(8): D04H1/728D01D5/00A61K8/02A61L15/62A61L15/44A61L15/42A61L31/14A61L31/16B01D46/54B01D39/16A24D1/00
CPCA24D1/002A61K8/0208A61K8/0212A61L15/42A61L15/44A61L15/62A61L31/14A61L31/148A61L31/16A61L2300/602B01D39/1607B01D46/0001B01D46/0036B01D46/0086B01D46/546B01D2275/10D01D5/003D01D5/0069D01D5/0092D04H1/728
Inventor 陈斌王奕林晓航
Owner SHENZHEN RUXIANGJU TECHCAL DEV LTD
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