Electrospinning device, method and system for manufacturing nanofibers in batch

Abstract

The invention relates an electrospinning device, method and system for manufacturing nanofibers in batch. The electrospinning device comprises an air chamber, an air supply unit, a conductive collector and a power supply, wherein one surface of the air chamber is provided with a plane electrode which is provided with multiple micro pores, the air supply unit supplies air for the air chamber, the conductive collector is arranged opposite to the plane electrode and located outside the air chamber, and the two poles of the power supply are connected with the plane electrode and the conductive collector respectively. According to the electrospinning device, method and system for manufacturing the nanofibers in batch, the plane electrode with the micro pores serves as an electrode on the air chamber; by means of the distribution of the micro pores, jet flow of spinning can be more even; in the spinning process, airflow in the air chamber jets from the micro pores, spinning can be induced more easily, further stretch is conducted on the jet flow under the airflow action before deposition is conducted, and fibrous deposition in the conductive collector is more even. The electrospinning device, method and system for manufacturing the nanofibers in batch can be applied to electropinning.

Description

Technical field [0001] The present invention relates to the field of micro-nano processing, in particular to an electrostatic spinning device, method and system for batch manufacturing of nanofibers. Background technique [0002] Electrospinning technology has successfully realized the preparation of materials including polymers, metals, ceramics and other materials into electrospun fibers ranging from 3 nanometers to 5 microns. The principle is: under the action of the high-voltage electrostatic generator, a high-voltage electrostatic field is formed between the spinning solution injection device and the nanofiber receiving device; the polymer solution is charged under the action of the high-voltage electric field and stretched by the electric field force, deforming to produce a Taylor cone When the electric field force is large enough, the dotted droplets overcome the surface tension to form a charged jet, which accelerates toward the collector; with the solvent volatilization,...

AI Technical Summary

Problems solved by technology

However, the array arrangement of multi-spinning nozzles is prone to produce uneven electric fields, and the mutual electric conduction between nozzles inhibits the influence, and the injection status of each nozzle is inconsistent, so it is difficult to ensure continuous and stable jet injection of each nozzle at the same time; and the static electricity between the jets The repulsion also increases the instability of the jet, resulting in a large difference in the shape and size of the nanofibers sprayed by each nozzle, which affects the quality of the prepared nanofiber film

In addition, most traditional electrospinning devices use standard injection spinning nozzles as nozzles, which have disadvantages such as easy clogging and difficult cleaning, which hinder their industrialization.

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