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Airflow and bubble spinning device

A technology of bubble spinning and air flow, applied in the field of spinning, can solve problems such as difficulty in mass production, threats to the life safety of laboratory personnel, high static electricity, etc., and achieve the effect of easy control.

Active Publication Date: 2016-03-23
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are some defects in the traditional nano-electrospinning technology. The yield of nanofibers prepared by the electro-knitting method is very low, and it is difficult to achieve industrialized mass production.
The output of needle-free electrospinning is large, but in order to obtain polymer nanofibers with extremely high molecular weight, a high static electricity must be added.
However, when the voltage is higher than hundreds of thousands of volts, the air is easily broken down, which poses a great threat to the life safety of laboratory personnel.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, the present invention first fills the spinning solution with the bubble generator 5 when in use, injects the solution in the bubble generator 5 into bubbles through the small airflow communication pipe 11 connected externally to the oxygen pump 1, and then blows them into bubbles through the air compressor 3 The external atmospheric flow communication tube 2 pushes the bubbles in the bubble generator 5 to push the liquid film upward along the tiny uneven fold depression 7 and the small groove 8 at the top of the wall film generating device 6, and the groove 8 can push the buffer liquid film Bubbles are formed, and are pulled into filaments by strong airflow in the outer airflow cavity 4. Excess liquid droplets are removed under the action of the high temperature of the heating element 9 of the bubble blast booster device. Finally, the obtained nanofibers are received on the receiving device 10. During the process of collecting fibers by the de...

Embodiment 2

[0036] Such as figure 2 As shown, the installation steps of the gas-liquid two-phase air bubble air spinning device in use are consistent with those in Example 1. But in the fiber collection process of the device of the present invention, the electrostatic field force of the electrostatic high voltage device 12 is not used for auxiliary collection.

[0037] In summary, compared with the prior art, the beneficial effects of the present invention include:

[0038] 1. Bubbles are generated in the bubble generator through the small air flow connecting tube connected externally to the oxygen pump. When meeting the large air flow connected to the connecting tube externally to the air compressor pump, the bubbles burst and push upward along the wall film generating device. There is a small airflow above the wall film generating device. The grooves can slow down the gravity of the wall membrane and generate air bubbles under the action of the airflow. The wall membrane and the top b...

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Abstract

The invention provides an airflow and bubble spinning device. The airflow and bubble spinning device comprise an outer airflow cavity, a bubble generator and a wall film generating device. An oxygen pump for providing small airflow and an air compressor for providing large airflow are arranged outside the outer airflow cavity. A small airflow communicating pipe externally connected with the oxygen pump generates bubbles in the bubble generator. A large airflow communicating pipe externally connected with the air compressor generates a liquid film on the surface of the wall film generating device in the bubble generator through powerful airflow, tiny and uneven wrinkle sunken portions are formed in the surface of the wall film generating device, a small groove is formed in the top end of the wall film generating device, a bubble blasting assisting device electric heating element and a receiving device are arranged above the outer airflow cavity, and the receiving device can assist in collecting fibers through an electrostatic high-pressure device. The bubbles are instantly blasted after encountering with the electric heating element and stretched in a high-speed airflow field, prepared nano-fibers are small in diameter and higher in yield, the electrostatic process can be provided or not provided, and the whole device works in a closed airflow cavity, and is safe and easy to control.

Description

technical field [0001] The invention belongs to the spinning field, in particular to an air bubble spinning device. Background technique [0002] The batch production of nanofibers is a hot and difficult direction in recent years. The most direct and basic method for traditionally preparing ultrafine fibers and nanofibers is electrospinning. At present, the preparation of nanofibers in laboratories and industries widely adopts single-nozzle or multi-nozzle syringe electrospinning or needle-free electrospinning nanofiber devices. There are some defects in the traditional nano-electrospinning technology. The yield of nanofibers prepared by the electro-knitting method is very low, and it is difficult to achieve industrialized mass production. The output of needleless electrospinning is large, but in order to obtain polymer nanofibers with extremely high molecular weight, high static electricity must be added. However, when the voltage is higher than hundreds of thousands of v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D13/00D01D5/00
CPCD01D5/00D01D13/00
Inventor 何吉欢李雅沈靖
Owner SUZHOU UNIV