Method for printing disordered micro nanofibers into ordered fiber array

Abstract

The invention belongs to the technical field of electrostatic spinning and relates to a method for printing disordered micro nanofibers prepared by electrostatic spinning into an ordered fiber array through the slide printing technology, which comprises the following steps of: firstly, selecting and using a conventional electrostatic spinning device, preparing disordered micro nanofibers, rotating a collection substrate loaded with the disordered fibers at an angle of 180 degrees, reversely pressing on a target substrate, and just clamping the disordered micro nanofibers between the collection substrate and the target substrate; next, applying the collection substrate with the disordered micro nanofibers with a vertical pressure to form an extruding force between the collection substrate at the upper end and the target substrate at the lower end, and pressing the collection substrate at the upper end and keeping the target substrate still, then parallelly sliding the collection substrate to gradually separate the two substrates; finally, obtaining the ordered micro nanofibers on the target substrate. The method has the advantages of simple and convenient process, flexible application condition, wide target substrate range, energy saving and good printing effect.

Description

Technical field: [0001] The invention belongs to the technical field of electrospinning and micro-nano electronic devices, and relates to a preparation method for orderly arranged micro-nano fibers used in nano-electronic devices and optoelectronic devices, in particular to a preparation method of micro-nano fibers prepared by electrospinning by slip printing technology. A method for printing disordered micro-nano fibers into ordered fiber arrays. Background technique: [0002] Preparation and assembly of ordered nanowires / fibers is one of the important research directions of nanotechnology and nanodevices. Because the ordered micro-nanofiber array has good orientation, it is easier to realize the large-scale assembly, integration and practical application of nanodevices compared with single nanowire / fiber devices; compared with disorderly arranged fiber films, Ordered nanowire / fiber arrays show better performance in mechanics, electricity, optics, etc., and are used in hig...

AI Technical Summary

Problems solved by technology

These methods improve the order of the fibers by improving the experimental device, especially the electrospun fiber collection device, but there are also some problems or limitations.

For example, these methods require pretreatment or processing of the collection screen, the area of ​​the collected ordered fibers is relatively small, there are restrictions on the material of the collection screen, and they cannot be freely scaled on a non-conductive flexible or elastic substrate (glass sheet , plastic sheets, rubber molds, paper sheets, etc.) to collect ordered fibers

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