Electrostatic spinning device

Abstract

The invention discloses an electrostatic spinning device, which comprises a spray mold head, a spray mold head cover plate, a spray nozzle, a high-voltage power supply device and a receiving plate and also comprises a raw material conveying device, a mechanical vibration generating device and a magnetic field generating device, wherein the raw material conveying device is connected to one side of the spray mold head; the mechanical vibration generating device is mounted on one end of the spray mold head; and the magnetic field generating device is mounted on the other end of the spray mold head and is positioned between the spray nozzle and the receiving plate. The magnetic field generating device comprises a direct-current power supply and a 'U' electromagnet. Through the arrangement of the mechanical vibration generating device and the magnetic field generating device, the electrostatic spinning of high-viscosity and almost-insulated polymer melt or solution can be realized without changing the properties of the polymer melt or solution, the limitation of the conventional electrostatic spinning technique to the raw material is eliminated, the orientation, arrangement and collection of single fibers can be controlled effectively, and a requirement for producing high-quality nano fibers can be further met.

Description

technical field [0001] The invention relates to the field of electrostatic spinning, in particular to an electrostatic spinning device under the action of multi-field coupling. Background technique [0002] At present, the electrospinning devices commonly used by manufacturers in various countries in the world are mainly single-nozzle or multi-nozzle top-down spinning devices. [0003] Electrospinning device in the prior art, please refer to figure 1 As shown, it mainly uses the electric field force to draw the polymer solution or melt from the capillary mouth to form a jet, and through the process of swinging, evaporating, and thinning, finally obtains nano-scale ultrafine fibers. When this top-down electrospinning device spins a viscous or nearly insulating polymer melt or solution, it is difficult to overcome the surface tension to form a fine jet; and, during the spinning process, due to the spinneret There is an uneven distribution of electric field between the receiv...

AI Technical Summary

Problems solved by technology

When this top-down electrospinning device spins a viscous or nearly insulating polymer melt or solution, it is difficult to overcome the surface tension to form a fine jet; and, during the spinning process, due to the spinneret There is an uneven distribution of electric field between the receiving plate and the movement of the jet stream is disturbed, and a figure 2 The Taylor cone shown makes collection of single fibers difficult

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