Weissenberg effect-based micro-porous batch electrostatic spinning device

Abstract

The invention discloses a Weissenberg effect-based micro-porous batch electrostatic spinning device, and relates to an electrostatic spinning device. The Weissenberg effect-based micro-porous batch electrostatic spinning device is provided with a lifting clamp, a high-voltage direct-current power supply, a direct-current motor, a low-voltage direct-current power supply, a fixed iron stand, an insulating liquid supply rotor, a liquid storage device and a collecting device, wherein the liquid storage device is fixed to the insulating lifting clamp; the insulating liquid supply rotor is connected with the direct-current motor through a coupling and is placed in the solution of the liquid storage device; the direct-current motor is electrically connected with the low-voltage direct-current power supply; the direct-current motor is fixed to the fixed iron stand; the positive electrode of the high-voltage direct-current power supply is connected with the liquid storage device; the collecting device is placed on the platform of the insulating lifting clamp; the direct-current motor drives the insulating liquid supply rotor to rotate so that the inner wall of the liquid storage device is stressed by spinning liquid; the spinning liquid flows out from micro-pores to realize liquid supply, produces a jet flow under the action of electric field force produced by the high-voltage direct-current power supply, is subjected to solvent volatilization and is solidified and deposited on the collecting device. Continuous liquid supply and rapid preparation of a nano-fibre membrane can be realized; the spinning efficiency is high.

Description

technical field [0001] The invention relates to an electrospinning device, in particular to a microporous batch electrospinning device based on the Weissenberg effect. Background technique [0002] Electrospinning is an emerging simple and rapid technology for preparing nanofibers. It applies a high voltage to the solution or polymer to make it charged and deformed, and a Taylor cone is formed at the nozzle, and the solution forms a jet under the action of an electric field force. , and finally form nanofibers after volatilization and solidification. [0003] In recent years, the application of electrospun nanofibers has become more and more widespread, but the mass production technology of electrospun nanofibers has hindered its further development. How to realize mass production has become an urgent problem to be solved. The efficiency of single-needle electrospinning is low, and it is impossible to quickly prepare nanofibers in batches. At present, the most commonly used...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the disadvantages of difficult cleaning of nozzles and easy blockage of nozzles in traditional electrospinning, and to provide a microporous batch process based on the Weissenberg effect that can realize continuous liquid supply and rapid preparation of nanofiber films, and improve spinning efficiency. Electrospinning device

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