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Device and method for realizing mass production of nano-fibers through electrostatic spinning method

An electrospinning method and nanofiber technology, which is applied in fiber processing, textiles and papermaking, filament/thread forming, etc., can solve the problems that mass production cannot be realized, and achieve the effect of satisfactory yield and uniform texture

Inactive Publication Date: 2013-03-20
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these technologies still cannot realize the continuous and stable production of nanofibers well. Therefore, mass production cannot be achieved to meet the demand for large-scale application of nanofibers.

Method used

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  • Device and method for realizing mass production of nano-fibers through electrostatic spinning method
  • Device and method for realizing mass production of nano-fibers through electrostatic spinning method
  • Device and method for realizing mass production of nano-fibers through electrostatic spinning method

Examples

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Effect test

Embodiment 1

[0019] An oxidized aluminum metal disc with a diameter of 10 cm and a nylon cloth with a pore diameter of 0.01 mm are used as a microporous coating to cover the sponge filter element. The electrospinning solution was 10% polyethylene oxide aqueous solution, the air pump propulsion speed was 0.1mL / min, the spinning voltage was 40kV, and the collection distance was 20cm. The average diameter of the prepared nanofibers is 200 nm, and the size of the nanofiber membrane obtained in 5 minutes is 10×15 cm, and the thickness is 75 μm.

Embodiment 2

[0021] An oxidized aluminum metal disc with a diameter of 50 cm is used, and a nylon cloth with a pore size of 0.5 mm is used as a microporous coating to cover the sponge filter element. The electrospinning solution was 15% polyethylene oxide aqueous solution, the air pump propulsion speed was 0.1mL / min, the spinning voltage was 40kV, and the collection distance was 20cm. The average diameter of the prepared nanofibers is 300 nm, and the size of the nanofiber film obtained in 5 minutes is 40×40 cm, and the thickness is 150 μm.

Embodiment 3

[0023] A copper metal disc with a diameter of 20 cm and a nylon cloth with a pore diameter of 0.1 mm are used as a microporous coating to cover the sponge filter element. The electrospinning solution is 10% polystyrene dichloromethane solution, the electric pump propulsion speed is 0.2mL / min, the spinning voltage is 40kV, and the collection distance is 20cm. Working with a single nozzle, the average diameter of the prepared nanofibers is 300nm, the size of the nanofiber film obtained in 5 minutes is 13×17cm, and the thickness is 90μm.

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Abstract

The invention relates to a device for realizing mass production of nano-fibers through an electrostatic spinning method, and the device is characterized in that a high-voltage electric field is applied between a collection plate and a smooth metal disc plane, electrostatic spinning solution uniformly wets and is uniformly distributed in a sponge filter core which is wrapped by a micropore film through an infusion pipe under the pressurizing pushing of an air pump or an electric pump; the sponge filter core which is wrapped by the micropore film is closely contacted with the smooth metal disc plane, so that no gap or bubbles are produced; and along with the rotation of the metal disc plane, the electrostatic spinning solution is uniformly coated on the surface of the metal disc plane to be stretched under the effect of the high-voltage electric field and to be solidified into filaments along with the volatilization of solvent. Due to the adoption of the novel method for realizing the mass production of the nano-fibers, the nano-grade fibers can be continuously and stably prepared, and the production efficiency can meet the requirement of the industrialized mass production of the nano-fibers.

Description

technical field [0001] The invention describes a device and method for mass-producing nanofibers by electrospinning, and belongs to the technical field of nanomaterial preparation. Background technique [0002] Electrospinning is a technology that stretches a polymer solution by means of a high-voltage electric field to prepare nanofibers with large specific surface area, high porosity, large aspect ratio, high surface energy, and high activity. Compared with other nanofiber preparation methods, this method has the advantages of being more convenient, simple, and flexible, and can also compound a large number of therapeutic drugs, antibacterial substances, functional groups, and even living cells into the fiber material. , so it has extremely high application value in the fields of biomedicine, biosensing, nanoelectronics, optoelectronic devices, catalysis, etc., and has become one of the hot spots in the field of nanometer research. [0003] The mass production of nanofibe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00
Inventor 许茜叶小炯
Owner SOUTHEAST UNIV