Continuous preparation device and method for orientated electrostatic spinning nanofiber yarn

A nanofiber and preparation device technology, which is applied in spinning machines, fiber processing, open-end spinning machines, etc., can solve the problems that nanofibers cannot be oriented and twisted into yarns, and cannot be continuously produced, so as to achieve continuous and large-scale production. The effect of modernized production, simple structure and increased output

Active Publication Date: 2013-05-08
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a continuous preparation device and method for oriented electrospinning nanofiber yarns, which solves the problem that nanofibers cannot be oriented and twisted into yarns in the prior art, and cannot be continuously produced

Method used

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  • Continuous preparation device and method for orientated electrostatic spinning nanofiber yarn
  • Continuous preparation device and method for orientated electrostatic spinning nanofiber yarn
  • Continuous preparation device and method for orientated electrostatic spinning nanofiber yarn

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Embodiment 1

[0035]Spinning is performed with a solution prepared from polyacrylonitrile (PAN) and dimethylformamide (DMF). The 15% polyacrylonitrile (PAN) solution was injected into the spinneret I1 and the spinneret II2 through the automatic infusion device. The spinneret I1 was connected to the high-voltage electrostatic positive terminal 9, and the spinneret II2 was connected to the high-voltage electrostatic negative electrode. The terminal 10 is connected to each other, the relative distance between the spinneret I1 and the spinneret II2 is set to be 16cm, the distance between the metal circular target 3 and the tip of the yarn guide rod 6 is set to be 6cm, the high-voltage electrostatic generating device is turned on, and the positive and negative voltages are set. The values ​​are +9kV and -9kV respectively. After the power is turned on, the spinneret I1 forms the jet I11, and the spinneret II2 forms the jet II12. The position between the tips and when the oriented nanofiber bundle...

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Abstract

The invention relates to a continuous preparation device and a method for orientated electrostatic spinning nanofiber yarn. The device comprises a metal round target and a yarn guide rod. The center of the metal round target is connected with one end of an insulating rod, the insulating rod is driven by a motor I to rotate, a metal top end of the front portion of the yarn guide rod is aligned with the center of the metal round target, the yarn guide rod is perpendicular to a bobbin, the bobbin is driven by a motor II to rotate, the metal round target, the insulating rod, the motor I and the yarn guide rod are arranged on the same center straight line, a spinning jet I and a spinning jet II which are symmetrical with each other are arranged on the left side and the right side of the metal round target and the yarn guide rod, the spinning jet I is connected with a high voltage static positive terminal, and the spinning jet II is connected with a high voltage static negative terminal. By means of the continuous preparation device and the method for the orientated electrostatic spinning nanofiber yarn, continuous production of the nanofiber yarn is achieved, the yield of electrostatic spinning is increased, and both the degree of orientation and the yield of the nanofiber yarn are high.

Description

technical field [0001] The invention relates to the technical fields of electrospinning and textile machinery, in particular to a device and method for continuously preparing oriented electrospinning nanofiber yarns. Background technique [0002] Electrospinning is currently one of the most popular techniques for spinning nanofibers. Its products have very excellent properties, such as a large specific surface area, flexible surface functionalization and excellent mechanical behavior, etc., which can be applied to tissue engineering, wound dressings, drug release, filter materials, composite reinforcement materials, sensors etc. Since the electrospinning process is simple, the preparation process is shorter than conventional spinning, and the product has excellent functions, since Anton Formhals obtained the US patent in 1934, electrospinning has been the long-term goal of fiber scientists and textile developers. This kind of nanofiber will become the leading product of ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H4/28D01D5/00
Inventor 覃小红吴韶华
Owner DONGHUA UNIV
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