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A spherical rotating brush type batch electrospinning device and its use method

An electrospinning and mass production technology, which is applied in the field of spherical rotating brush type mass electrospinning devices, can solve the problems of non-orientation of final nanofiber product structure, volatile solvent, and limited spinning direction, etc. The fiber structure is uncontrollable, the solvent is easy to volatilize, and the solution concentration is well controlled

Active Publication Date: 2019-01-11
安徽弋尚纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a spherical rotating brush-type batch electrospinning device and its use method, which solves the problem of limited spinning direction, large and uncontrollable deposition radius, and easy solvent in the current electrospinning process. Volatility, insufficient solution utilization, long-term fluctuations in the concentration of the spinning solution on the free liquid surface, low yield of nanofibers per unit area per unit time and non-orientation of the final nanofiber product structure

Method used

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  • A spherical rotating brush type batch electrospinning device and its use method
  • A spherical rotating brush type batch electrospinning device and its use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036]like figure 1 As shown, a spherical rotating brush-type batch electrospinning device includes a liquid supply system, a separation electric field control system, a spherical rotary spinning system and a nanofiber collection system, wherein the liquid supply system includes a gas cylinder 3, a spinning Liquid storage bottle 7, oil bath 9 and catheter 10, the spinning solution storage bottle 7 is arranged in the oil bath 9, the spinning solution storage bottle 7 and the catheter 10 to the brush liquid tank 12 forms a connector structure, the spinning liquid storage bottle 7 is connected to the gas cylinder 3 through the air pipe 25, and the air pipe 25 is provided with a main valve 2 and a pressure reducing valve 1 in sequence near the gas cylinder 3, and the separation The electric field control system comprises a high voltage generator 11, a metal ring 23, a cylindrical seat 24 and a support 26, the support 26 is arranged on the upper end of the spinning solution storage...

Embodiment 2

[0057] Next, nanofibers are prepared by using a polymer solution prepared from polyacrylonitrile (PAN) and N-N dimethylformamide (DMF). The mass fraction of the prepared PAN polymer solution is 10%. The configured PAN / DMF polymer solution is injected into the spinning solution storage bottle 7, and the spinning solution storage bottle 7 and the brush solution tank 12 are connected with the catheter 10. Adjust the height of the metal ring 23 so that the distance between its top and the top of the spherical shower head 20 is 70mm. Open the middle switch 8 of the catheter tube 10, open the main valve 2 of the gas cylinder 3, adjust the pressure reducing valve 1 to push the piston 4 so that the polymer solution 6 slowly flows into the brush liquid tank 12 through the catheter tube 10, so that the polymer solution 6 exists in the brush liquid tank 12 in a certain amount. Add silicone oil 5 into the oil bath 9, and heat it to the set temperature of 30° C. with a hot stage. Connec...

Embodiment 3

[0059] Next, nanofibers are prepared by using a polymer solution prepared from polyacrylonitrile (PAN) and N-N dimethylformamide (DMF). The mass fraction of the prepared PAN polymer solution is 12%. The configured PAN / DMF polymer solution is injected into the spinning solution storage bottle 7, and the spinning solution storage bottle 7 and the brush solution tank 12 are connected with the catheter 10. Adjust the height of the metal ring 23 so that the distance between its top and the top of the spherical shower head 20 is 90mm. Open the middle switch 8 of the catheter tube 10, open the main valve 2 of the gas cylinder 3, adjust the pressure reducing valve 1 to push the piston 4 so that the polymer solution 6 slowly flows into the brush liquid tank 12 through the catheter tube 10, so that the polymer solution 6 exists in the brush liquid tank 12 in a certain amount. Add silicone oil 5 into the oil bath 9, and heat it to the set temperature of 40° C. with a hot stage. Connec...

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Abstract

The invention relates to a spherical revolving brush type batched electrostatic spinning device and a usage method thereof. The spherical revolving brush type batched electrostatic spinning device comprises a liquid supply system, a separating electric field control system, a spherical rotary spinning system and a nanofiber collecting system, wherein the liquid supply system comprises an air cylinder, a spinning solution storage bottle, an oil batch tank and a solution guiding tube, the spinning solution storage bottle is arranged in the oil batch tank, the spinning solution storage bottle and the solution guiding tube form a communicator structure through a solution brushing tank, the spinning solution storage bottle is connected with the air cylinder through an air tube, and a main valve and a pressure reducing valve are sequentially arranged at the position, close to the air cylinder, on the air tube. The separating electric field control system comprises a high-pressure generator, a metal round ring, a cylindrical seat and a support, wherein the support is arranged at the upper end of the spinning solution storage bottle, the cylindrical seat is arranged on the support, and the metal round ring is installed on the cylindrical seat in a sleeving mode to be connected with the high-pressure generator. Automatic supply of a high polymer solution and stable batched nanofiber preparation can be completed.

Description

technical field [0001] The invention belongs to the technical field of nano-electrospinning and textile machinery, and in particular relates to a spherical rotating brush-type batch electrospinning device and an application method thereof. Background technique [0002] When polymer fiber diameters are reduced from the micrometer scale to the submicrometer or nanometer scale, a surprising set of properties emerges. Such as a very large volume specific surface area, the volume specific surface area of ​​nanofibers is basically 1000 times that of microfibers; it can be flexibly functionalized on the surface; it shows superior effects and mechanical properties compared with other known material forms, such as surface And interface effect, small size effect, quantum size effect and quantum tunneling effect and stiffness, tensile strength, etc. These outstanding properties make nanofibers the material of choice for many important applications, and have great development potential...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/00D01D1/06
CPCD01D1/06D01D5/0069D01D5/0076D01D5/0092
Inventor 覃小红熊健
Owner 安徽弋尚纺织科技有限公司
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