A disc-shaped electrode electrospinning device

Abstract

The invention discloses an electrostatic spinning device using a circular electrode. The electrostatic spinning device comprises a spinning system, a liquid supply system, a collecting system and a high-voltage power supply, wherein the collecting system is positioned above the spinning system; the spinning system comprises a spinning electrode; the collecting system comprises a collecting electrode; the spinning electrode is of a circular structure; the emitting end of the circular structure is of a tip structure; a spinning solution is accommodated in the circular structure; a guide column is arranged at the axis of the circular structure; a circular cover is arranged above the circular structure and is movably mounted on the guide column; and up-and-down movement of the circular cover on the guide column can adjust the distance between the circular cover and the circular structure, to adjust an overflow amount of the solution. By the adoption of the circular electrode for electrostatic spinning, compared with other needle-free electrostatic spinning device, the electrostatic spinning device disclosed by the invention can greatly increase the yield and the quality of a fiber product. The solution distribution mode of the device is simple and reliable; and the device is simple in structure, easy to process and convenient for industrial application.

Description

technical field [0001] The invention relates to the technical field of electrospinning, in particular to a disk-shaped electrode electrospinning device. Background technique [0002] Electrospinning technology is a technology that uses electrostatic field force to produce nanofibers. Its principle is: in a high-voltage electrostatic field, the charged polymer solution forms a Taylor cone under the action of the electric field force. When the electric field force is large enough, the charged liquid The droplets overcome the surface tension to form a charged jet, and finally deposit and solidify into a nanofiber structure on the collection mechanism. [0003] Traditional nozzle-type electrospinning devices are prone to nozzle clogging and difficulty in cleaning, and array nozzles are prone to "edge effects" during the spinning process, which affects fiber quality and spinning efficiency, resulting in low output. [0004] Compared with nozzle-type electrospinning, needle-free ...

AI Technical Summary

Problems solved by technology

The needleless electrospinning technology proposed in patent WO2005 / 024101A1 has a large fiber output, but the spinning solution is exposed to the air, and the diameter of the produced fiber is uneven. In addition, the electric field distribution of the spinning electrode is uneven, and the spinning High critical voltage, high energy consumption, not suitable for batch nanofiber manufacturing

Images