Ultrasonic-assisted electrostatic spinning apparatus

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.

Description

technical field [0001] The invention relates to an ultrasonic-assisted electrostatic spinning instrument, in particular to an ultrasonic-assisted electrostatic spinning instrument suitable for high-viscosity solution and melt electrostatic spinning. Background technique [0002] Electrospinning technology is one of the focus technologies for the preparation and research of nanofibers. The raw materials involved have expanded from traditional fiber materials to various new conductive polymers, phase change materials, biomaterials and even hydrogels. The scope of applied research also covers most of the current focus research fields of nanotechnology, such as filter protection, energy batteries, biological tissue engineering, electromagnetic sensing, aerospace military industry and agriculture coverage. Therefore, the research and development of electrospinning technology has an international strategic position in both industrial economy and military defense. Although related...

AI 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 electrospinning, the electrospinning instrument can not only effectively reduce the viscosity of electrospinning solution and melt, thereby expanding the range of electrospinnable concentration of polymer solution, but also effectively reduce the The diameter of small fibers reduces the structural defects of fibers, thereby achieving the goal of improving the mechanical properties of electrospun nanofibers

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