Non-needle electrostatic spinning device

Abstract

The invention provides a non-needle electrostatic spinning device, and relates to electrostatic spinning devices. The non-needle electrostatic spinning device is provided with a spinning liquid tank, a liquid conduit, a servo valve, a main control panel, a servo motor, a coupling, a ball bearing, a ball screw, a covering plate, a distance sensor, a guide plate, a guide cylinder, a nozzle plate, an auxiliary electrode plates, a gas hood, a receiving device, a gas conduit, a pressure regulating valve, a gas pump, a high voltage power supply and an auxiliary high voltage power supply. Batch continuous spinning is conducted through a micropore spinning nozzle array on the nozzle plate, the electrostatic interference and electric field concentration phenomena among spinning nozzles of the multi-nozzle electrostatic spinning device are avoided, a high-voltage gradient electric field is formed through the auxiliary electrode plates, electrostatic spinning efficiency is improved, an auxiliary electric field can refine nanofibers further, and the diameters of the electrostatic spinning nanofibers are reduced; a gas layer is formed by leading gas flows in, plays a role in grouping, guiding and collecting jet flows in a electrostatic spinning jet flow injection process, and facilitates uniform distribution of the electrostatic spinning nanofibers on a collecting device.

Description

technical field [0001] The invention relates to an electrostatic spinning device, in particular to a needleless electrostatic spinning device. Background technique [0002] Electrospun nanofibers and their products have the advantages of large specific surface area, small pore size, good air permeability, and wide application range, and because of their scientific value and broad application prospects, they have received attention from various research fields at home and abroad. The traditional electrospinning device is mainly composed of a high-voltage electrostatic generator, a micro-injection pump, a syringe with a capillary, and a receiving device, and the traditional electrospinning device has only a single spinning nozzle, which can only produce a jet, and the output is only 0.1 ~1g / h, the efficiency is very low, and it cannot meet the requirements of industrial batch manufacturing of nanofibers. Therefore, the batch device of electrospinning nanofibers has become the ...

AI Technical Summary

Problems solved by technology

U.S. Patent US6753454 discloses an electrostatic spinning device with multiple spinning nozzles. A uniform electric field will be generated on the multi-spinning nozzles, so that the multi-spinning nozzles will affect each other, and the spraying state of each spinning nozzle will be inconsistent. And it is easy to produce bead structure, and the distribution of electrospinning nanofibers is uneven, and the spinning nozzle is prone to clogging, which is inconvenient to operate

Moreover, the multi-spinning nozzle system is adopted, and electrostatic repulsion will occur between the jets, causing the jets to tilt, increasing the instability of the jets, and the collected nanofibers are uneven, which affects the quality of the prepared batches of nanofibers

Images