Electric wind phenomena during AC colectorless electrospinning

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F15%3A00003525" target="_blank" >RIV/46747885:24410/15:00003525 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.nanocon.eu/files/uploads/01/NANOCON" target="_blank" >http://www.nanocon.eu/files/uploads/01/NANOCON</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Electric wind phenomena during AC colectorless electrospinning

Popis výsledku v původním jazyce

This paper describes the electric wind phenomena occurring during colectorless altering current (AC) electrospinning. It will be shown that this phenomenon is the significant element for electrospinning generated from an alternating voltage power source. AC electrospinning is a highly productive novel method for the creation of various nanofibrous formations with specific properties. The electric wind enables easy manipulation of the nanofibrous mass rising from the electrode (in the form of smoke), which doesn´t require any collector. Investigation of this phenomenon is shown using two different methods. The first one uses a hot-wire anemometer for the collection of air speed data above an spinning electrode. The second one uses video analysis of the high-speed video camera data. Visual record of the working process allows the formulation of an hypothesis explaining mechanism of nanofibrous smoke transport away from the spinning electrode without using any additional source of wind or mechanical drawing. It is seen that, in a 3-4 cm distance from the electrode, coulombic forces are creating and accelerating the mass of the nanofibers. When the nanofibrous smoke exceeds this distance, the fibers are drifting away from the electrode in speeds that are comparable with measured electric wind values.

Název v anglickém jazyce

Electric wind phenomena during AC colectorless electrospinning

Popis výsledku anglicky

This paper describes the electric wind phenomena occurring during colectorless altering current (AC) electrospinning. It will be shown that this phenomenon is the significant element for electrospinning generated from an alternating voltage power source. AC electrospinning is a highly productive novel method for the creation of various nanofibrous formations with specific properties. The electric wind enables easy manipulation of the nanofibrous mass rising from the electrode (in the form of smoke), which doesn´t require any collector. Investigation of this phenomenon is shown using two different methods. The first one uses a hot-wire anemometer for the collection of air speed data above an spinning electrode. The second one uses video analysis of the high-speed video camera data. Visual record of the working process allows the formulation of an hypothesis explaining mechanism of nanofibrous smoke transport away from the spinning electrode without using any additional source of wind or mechanical drawing. It is seen that, in a 3-4 cm distance from the electrode, coulombic forces are creating and accelerating the mass of the nanofibers. When the nanofibrous smoke exceeds this distance, the fibers are drifting away from the electrode in speeds that are comparable with measured electric wind values.

Druh

D - Stať ve sborníku

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

<a href="/cs/project/TA04010237" target="_blank" >TA04010237: Výzkum a vývoj užití nanomateriálů při výrobě míčů</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

NANOCON 2014, 6TH INTERNATIONAL CONFERENCE

ISBN

978-80-87294-53-6

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

798-801

Název nakladatele

TANGER LTD, OSTRAVA

Místo vydání

Ostrava, CZECH REPUBLIC

Místo konání akce

Brno, CZECH REPUBLIC

Datum konání akce

1. 1. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000350636300136