Ultrasonic-assisted electrostatic spinning apparatus

An ultrasonic and electrospinning technology, applied in textiles and papermaking, filament/thread forming, feeding solution to spinnerets, etc., can solve problems such as reducing the viscosity of electrospinning solution and melt, reducing fiber diameter, etc., to achieve The effect of expanding the concentration range of electrospinning, increasing crystallinity, and improving mechanical properties

Inactive Publication Date: 2016-05-11
JIANGNAN UNIV
7 Cites 2 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0005] In order to overcome the difficulty that electrospinning technology is only applicable to low-viscosity polymer solutions and melt electrospinning can only prepare micron-sized fibers, the present invention provides an ultrasonic-assisted electrospinning apparatus, especially one that is suitable for high-viscosity solutions Ultrasonic assisted electrospinning instrument for electrospinning and melt...
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Abstract

An ultrasonic-assisted electrostatic spinning apparatus is characterized by jointly comprising a spinning machine main body, an ultrasonic vibration device, a liquid supply device, a spinning nozzle, a high-voltage wire, a high-voltage generator and a receiving device, wherein an amplitude-change pole part of the ultrasonic vibration device is extended into the spinning machine main body and is fixed on the spinning machine main body through a transducer part; the liquid supply device is connected with a liquid supply port in the lower part of the spinning machine main body through a liquid supply pipe; the spinning nozzle is connected with the spinning machine main body through a spinning port; the high-voltage wire is used for connecting the spinning nozzle with the high-voltage generator; the high-voltage generator is connected with the spinning nozzle through the high-voltage wire; the receiving device is located below the spinning nozzle. The spinning apparatus under the coupling action of ultrasonic vibration can effectively reduce viscosity of an electrostatic spinning solution and a melt, broaden electrostatic spinnable concentration range of the machine, effectively reduce diameter of fibers, reduce the structural defects of the fibers and increase the crystallization degree of the fibers, thereby achieving the purpose of improvement of mechanical performance of the electrostatic spun nano-fibers.

Application Domain

Spinning head liquid feederFilament/thread forming

Technology Topic

ElectrospinningUltrasonic assisted +11

Image

  • Ultrasonic-assisted electrostatic spinning apparatus
  • Ultrasonic-assisted electrostatic spinning apparatus

Examples

  • Experimental program(1)

Example Embodiment

[0027] exist figure 1 , the spinning solution is fed into the tank (311) of the liquid storage tank (31) through the feeding port (312) on the upper part of the liquid storage tank (31) of the liquid supply device (3), and then the liquid supply pump (33) Under the action of the liquid supply pipe (32) from the box (311) through the liquid supply port (112) at the lower part of the main body (11) of the main body (1) of the spinning machine, it is pumped into the machine cavity of the main body (1) of the spinning machine (12) vibration cavity (121); the ultrasonic vibration device probe (111) on the upper part of the main body (11) of the main body (1) of the spinning machine protrudes into the machine cavity (12) of the main body (1) of the spinning machine The horn (21) of the ultrasonic vibration device (2) of the vibration cavity (121) and the transducer (22) connected to it begin to align under the control of the ultrasonic controller (24) connected to it through a cable (23). The spinning solution in the vibration chamber (121) is subjected to ultrasonic vibration; as the spinning solution increases, the spinning solution subjected to the ultrasonic action passes through the vibration chamber (121) of the machine cavity (12) of the spinning machine main body (1). The part communicating with the upper part of the spinning chamber (122) overflows into the spinning chamber (122) from the vibrating chamber (121); after the solution fills the two chambers, the spinning solution is discharged under the action of the liquid supply pump (33). The spinning nozzle (4), which is fixed on the main body (11) by the screw structure, flows out through the spinning port (113) and is generated by the high-voltage generator (6) connected to the spinning nozzle (4) by the high-voltage line (5). Under the action of the high pressure, the jet starts to form and starts spinning; the jet solidifies extremely rapidly in the air and finally falls on the receiving device (7) located at the lower end of the spinning nozzle (4), thereby completing the spinning forming process. Wherein, the feeding port (312) on the upper part of the liquid storage tank (31) of the liquid supply device (3) is sealed by the feeding port plug (313) when no liquid is supplied; the transducer of the ultrasonic vibration device (2) is connected to the spinning A corrosion-resistant sealing gasket is used to form a seal between the probe ports (111) of the ultrasonic vibration device of the main body (11) of the thread machine main body (1).

PUM

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Description & Claims & Application Information

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