Multi-needle electrostatic spinning device in constant-pressure liquid supply

Abstract

The invention discloses a multi-needle electrostatic spinning device in constant-pressure liquid supply, and relates to the technical field of nanofiber membrane production devices. The multi-needle electrostatic spinning device in constant-pressure liquid supply comprises a reciprocating transmission system, a spinning system arranged on the reciprocating transmission system, and a constant-pressure liquid supply control system connected with the spinning system, wherein the spinning system comprises at least one electrode, a high-voltage power supply binding post is arranged at one end of the electrode, multiple needles are fixedly arranged on each electrode, a liquid inlet is formed in the electrode and communicates with the needles through a liquid inlet channel, and an anti-electrostatic interference mechanism is further arranged on the electrode at a position corresponding to the needle. According to the multi-needle electrostatic spinning device in constant-pressure liquid supply disclosed by the invention, each needle is arranged in an independent space through an anti-electrostatic interference cover, so that the interaction between electrostatic fields can be effectivelyweakened, and the spinning quality and the service life of the needles are guaranteed to a certain extent.

Description

technical field [0001] The invention relates to the technical field of nanofiber membrane production devices, in particular to a constant pressure liquid supply multi-needle electrospinning device. Background technique [0002] Electrospinning is an effective technology for preparing nanofibers. The prepared nanofibers have the characteristics of large specific surface area, large aspect ratio and low relative density, and are especially suitable for application in filter materials. The electrospun nanofiber membrane has a three-dimensional spatial structure, which not only has the advantages of nano-scale size and high specific surface area, but also has the characteristics of good mechanical stability, small inter-fiber pore size, high porosity, and good fiber continuity. Our company is committed to the research on the application of nanofiber materials to the filtration industry. Although electrospinning technology has developed rapidly in both application and theoretical...

AI Technical Summary

Problems solved by technology

[0004] (1) The jet flow is unstable, and the jet flow itself has an unstable swing characteristic, which causes the influence between the jet flows, and each jet flow is interlaced with each other, which leads to the occurrence of multi-strand fibers in the multi-nozzle spinning process. Due to the phenomenon of doubling, the distribution of collected fibers is arbitrary, resulting in unfavorable consequences such as uneven fiber structure.

[0005] (2) Electrostatic fields interfere with each other

[0008] The present invention mainly solves the problem that the electrostatic fields of multi-needle spinning interfere with each other during large-scale production, resulting in different electric field strengths, resulting in clogging of spinning needles and poor spinning morphology.

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