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Bead head nozzle electrostatic spinning device

A technology of electrospinning and bead-head nozzles, applied in textile and papermaking, filament/thread forming, fiber processing, etc., can solve problems such as needle blockage and inconvenient cleaning, and achieve the effect of improving working speed.

Active Publication Date: 2017-09-26
JILIN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the existing technology, the technical problem to be solved by the present invention is to provide an electrospinning device with a bead head as the core spinning structure, so as to solve the problems of needle blockage and inconvenient cleaning of the traditional needle-tube electrospinning device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Bead head nozzle electrostatic spinning device
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  • Bead head nozzle electrostatic spinning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The spinning experiment of embodiment adopts bead nozzle electrostatic spinning device of the present invention (referring to figure 1 ), the closing part of the bead-head electrospinning nozzle is properly processed so that the closing part of the round platform at the lower part of the liquid outlet tube contacts with the sphere to form a slit. The bead head is made of metal stainless steel with a diameter of 0.5mm; the configured 3% The PVP solution is added to the propulsion pump device, and the PVP solution is supplied to the bead-head spinning system through the liquid inlet pipe. The vertical spinning method is adopted. When the high-voltage power supply reaches 12KV and the receiving distance is 1cm, the electrospinning effect is the best. Silk rate 0.005ml / min.

Embodiment 2

[0034] The spinning experiment of embodiment adopts bead nozzle electrostatic spinning device of the present invention (referring to figure 1 ), the closing part of the bead-head electrospinning nozzle is properly processed so that the closing part of the round platform at the lower part of the liquid outlet pipe contacts with the sphere to form a slit. The bead head is made of metal stainless steel with a diameter of 6.3mm. 5% of the configured The PVP solution is added to the propulsion pump device, and the PVP solution is supplied to the bead-head spinning system through the liquid inlet pipe. The vertical vertical spinning method is adopted. When the high-voltage power supply reaches 12KV and the receiving distance is 7cm, the electrospinning effect is the best. Rate 0.1ml / min.

Embodiment 3

[0036] The spinning experiment of embodiment adopts bead nozzle electrostatic spinning device of the present invention (referring to figure 1 ), the closing part of the bead-head electrospinning nozzle is properly processed so that the closing part of the round table at the lower part of the liquid outlet tube contacts with the sphere to form a slit. The bead head is made of metal copper and has a diameter of 6.3mm. The PVP solution is added to the propulsion pump device, and the PVP solution is supplied to the bead-head spinning system through the liquid inlet pipe. The vertical vertical spinning method is adopted. When the high-voltage power supply reaches 12KV and the receiving distance is 7cm, the electrospinning effect is the best. Rate 0.1ml / min.

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Abstract

The invention discloses a bead head nozzle electrostatic spinning device and belongs to the field of electrostatic spinning. The bead head nozzle electrostatic spinning device comprises a liquid incoming propelling device, a bead head spinning system, a power supply system and a receiving system. A gap between a bead head and a liquid outgoing pipe cone closing portion is utilized to enable liquid to flow out, one or multiple Taylor cones are formed under excitation of a high-voltage electric field, and the problem of capillary needle type electrostatic spinning blockage can be solved effectively by rotating the bead head. The bead head can be demounted for cleaning after electrostatic spinning is finished. Solution spinnable range can be expanded by treating the liquid outgoing pipe cone closing portion to prepare uniform liquid leaking ports different in size according to different working conditions like viscosity of needed liquid, and the device can be used for melt spinning. Receiving distance can be adjusted by combining bead size with solution concentration so as to realize far-near field spinning.

Description

technical field [0001] The invention belongs to the field of electrostatic spinning devices, in particular to an electrostatic spinning device with a bead head structure, and belongs to the field of nanofiber preparation. Background technique: [0002] Electrospinning refers to that under the condition of thousands or even tens of thousands of volts, the charged droplets of the polymer solution or melt form Taylor cones under the action of the electric field force, and the charged droplets are sprayed to form fine particles under the action of overcoming the surface tension. Flow, with the evaporation and solidification of the spraying process, the solute or melt in the solution is collected on the receiving device connected to a negative voltage, and then a non-woven micro-nano fiber membrane is formed. [0003] Electrospinning is currently one of the more effective methods for preparing micro-nanofibers. The equipment has simple structure, easy operation, abundant spinnab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00
CPCD01D5/0069Y02P70/62
Inventor 程志强杨桂霞张莹莹康立娟于晓斌王大鹏
Owner JILIN AGRICULTURAL UNIV
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