Electrostatic spinning device using rotating disk as emitter

Abstract

The invention relates to an electrostatic spinning device using a rotating disk as an emitter, which comprises a motor, an insulating bracket, an electrostatic emitting electrode, a receiving electrode, a disc-shaped electrostatic emitter, a spring blade, a solution storage device, a collecting device, a rotating shaft and a driving device, wherein the rotating shaft passes through the centre of the disc-shaped electrostatic emitter; the spring blade is connected to the disc-shaped electrostatic emitter; the disc-shaped electrostatic emitter is positioned over the solution storage device; thespring blade and the solution storage device are fixed on the insulating bracket; the electrostatic emitting electrode is connected to the collecting device; the collecting device is positioned over the disc-shaped electrostatic emitter; the receiving electrode is connected with the collecting device; one end of the driving device is connected with the rotating shaft, while the other end is connected with the motor; and the motor is fixed on the exterior of the insulating bracket. The electrostatic spinning device overcomes the inconvenience brought by a pin head serving as an electrostatic spinning emitter, improves spinning efficiency and contributes to massive industrial production.

Description

technical field [0001] The invention relates to the field of electrospinning, in particular to an electrospinning device using a rotating disc as an emitter. Background technique [0002] Currently, the most widely used electrospinning devices (such as figure 1 shown) consists of four parts: power supply system, pusher, needle tube and needle, receiver. [0003] Its process involves the application of an electrostatic field connected to a needle attached to a tube containing a polymer solution or melt. Under the action of the electrostatic field, the polymer droplets at the end of the capillary will form a conical shape, that is, a Taylor cone. If the voltage exceeds a critical value, electrostatic forces overcome surface tension and a charged jet is ejected, and the jet is directed toward a grounded disc that acts as a receiving electrode. When the jet is formed, the solvent evaporates immediately, and as a result, nanofibers are formed on the surface of the receiving el...

AI Technical Summary

Problems solved by technology

[0004] However, also of concern are the aforementioned problems with electrospinning, namely its extremely low yield, part of the solution dripping as liquid from the nozzle if the viscosity of the solution is not adjusted properly, and frequent clogging of the needle Case

According to the initial impression, the production speed of electrospinning is very slow, only calculated in cm / s

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