Effective AC electrospinning technology

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F17%3A00004484" target="_blank" >RIV/46747885:24210/17:00004484 - isvavai.cz</a>

Alternative codes found

RIV/46747885:24410/17:00004484

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Effective AC electrospinning technology

Original language description

Nanofibrous materials are essential components for a number of applications in medicine, protective materials, sensors, cosmetics, the textile industry, hygiene, filtration and energy storage. The most widely used and studied technique in these fields is electrospinning which exhibits promising results thanks to its versatility and simplicity. Electrospinning is employed in multiple forms among which needle and needleless are the most distinctive. The first is based on the generation of a single jet from a nozzle and therefore it suffers from low productivity. The latter uses the destabilization of an electric field associated with liquid surfaces and enhances the throughput due to numerous resulting jets emitted from the surfaces of rollers, spheres, strings and spirals. However, although some progress in total producibility has been achieved, the efficiency of the method remains low and, moreover, both variants need a collector which makes it difficult to combine electrospinning easily with other technologies due to the presence of the high field strength within the entire spinning zone. The contribution shows that altering current (AC) electrospinning based on a needleless spinning electrode provides a highly productive smoke-like aerogel composed of nanofibers without any need for a collector. The work shows that AC needleless electrospinning gains its efficiency and collector-less feature thanks to the creation of a perpetually charge-changing virtual counter-electrode composed of the emitted nanofibers. Our results demonstrate the formation mechanism of the elastic nanofibrous smoke using high-speed camera records. The potential usage of AC needleless electrospinning is demonstrated here by spinning the plume of nanofibers into a yarn, production of composite yarns as well as 2D layers.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

21001 - Nano-materials (production and properties)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů