Nanofiber low-voltage electro-spinning device with auxiliary electrodes

An auxiliary electrode, nanofiber technology, applied in fiber processing, textile and papermaking, filament/thread forming, etc., can solve the problems of large difference in fiber diameter, discontinuous production process, high injection voltage threshold, and achieve complete solvent evaporation, Improve quality and achieve the effect of directional deposition

Inactive Publication Date: 2013-03-13
XIAMEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a nanof

Method used

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  • Nanofiber low-voltage electro-spinning device with auxiliary electrodes
  • Nanofiber low-voltage electro-spinning device with auxiliary electrodes

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Example Embodiment

[0011] See figure 1 with 2 The embodiment of the present invention is provided with a DC high-voltage power supply 1, a conductive electrode plate 2, a high-voltage air source 4, an air duct 5, an array nozzle 6, an auxiliary electrode 7, a fan 8, a roller 9 and a collecting plate 10. The DC high-voltage power supply 1 is used to generate high voltage, the positive electrode is connected to the conductive electrode plate 2, and the negative electrode is grounded; the polymer solution 3 is set on the conductive electrode plate 2, and a jet 12 is generated on the upper surface of the solution during electrospinning; The air pipe 5 is connected with the array nozzle 6 to provide high-pressure gas for the array nozzle 6; the array nozzle 6 is arranged between the auxiliary electrode 7 and the conductive plate 2, and the gas is used to change the flight direction of the fiber 11, and the nanofiber 11 follows the airflow from the auxiliary The gap between the electrodes 2 flows throug...

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Abstract

The invention discloses a nanofiber low-voltage electro-spinning device with auxiliary electrodes and relates to an electrostatic spinning device. The electro-spinning device is provided with a high-voltage DC power supply, a conducting pole plate, array nozzles, a high pressure air source, airway tubes, auxiliary electrodes, a fan, rollers and a collection plate; the positive pole of the high-voltage DC power supply is connected to the conducting pole plate, and the negative pole of the high-voltage DC power supply is grounded; polymer solution is located on the conducting pole plate, so that jet flow can be created on the upper surface of the solution during electro-spinning; the high pressure air source is connected to the array nozzles through the airway tubes, so that high pressure air can be provided for the array nozzles; the array nozzles are arranged between the auxiliary electrodes and the conducting pole plate so as to jet air flow for changing the flight direction of fiber, so that the nanofiber is guided to get through a gap between the auxiliary electrodes along with the air flow and deposit onto the collection plate; the auxiliary electrodes are arranged above two sides of the polymer solution and grounded; the fan is arranged above the collection plate, so that the fiber is deposited onto the collection plate by air pumping; and the collection plate is arranged above the auxiliary electrodes as a deposition base plate of the nanofiber.

Description

technical field [0001] The invention relates to an electrospinning device, in particular to a nanofiber low-voltage electrospinning device with auxiliary electrodes. Background technique [0002] As one of the most effective nanofiber manufacturing technologies, electrospinning technology is attracting more and more attention from domestic and foreign scholars. However, the output of traditional electrospinning technology is very low and cannot meet the needs of the industry for nanofibers. Therefore, researchers have studied various electrospinning methods to realize the mass production of nanofibers. However, there are still many shortcomings and deficiencies in the current devices for preparing nanofibers in batches. Chinese patent 200480025691.5 reports a device that uses electrospinning to produce nanofibers from polymer solutions. The substance solution undergoes rheology in a high-voltage electric field and forms a Taylor cone on the surface of the solution to genera...

Claims

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Application Information

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IPC IPC(8): D01D5/00
Inventor 吴德志胡兴旺邱小椿王小萍刘海燕虞凌科孙道恒
Owner XIAMEN UNIV
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