Core-shell structured polypyrrole-coated magnetic carbonyl iron microparticles and their magnetorheology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F11%3A00361183" target="_blank" >RIV/67985874:_____/11:00361183 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.3604489" target="_blank" >http://dx.doi.org/10.1063/1.3604489</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.3604489" target="_blank" >10.1063/1.3604489</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Core-shell structured polypyrrole-coated magnetic carbonyl iron microparticles and their magnetorheology

Popis výsledku v původním jazyce

The substantial sedimentation problem of magnetorheological (MR) suspensions, due to the large density mismatch between dispersed particles and carrier medium, is a significant obstacle for their broader applications. The present paper reports the MR properties and enhanced sedimentation stability of novel core-shell structured particles with carbonyl iron as a core and polypyrrole as a shell layer dispersed in silicone oil. The coating morphology was analyzed via scanning electron microscopy and magnetic properties via vibrating sample magnetometry. The steady shear flow and small-amplitude dynamic oscillatory shear measurements were carried out to show improved MR performance. The sedimentation test showed positive role of polymeric coating, as well.

Název v anglickém jazyce

Core-shell structured polypyrrole-coated magnetic carbonyl iron microparticles and their magnetorheology

Popis výsledku anglicky

The substantial sedimentation problem of magnetorheological (MR) suspensions, due to the large density mismatch between dispersed particles and carrier medium, is a significant obstacle for their broader applications. The present paper reports the MR properties and enhanced sedimentation stability of novel core-shell structured particles with carbonyl iron as a core and polypyrrole as a shell layer dispersed in silicone oil. The coating morphology was analyzed via scanning electron microscopy and magnetic properties via vibrating sample magnetometry. The steady shear flow and small-amplitude dynamic oscillatory shear measurements were carried out to show improved MR performance. The sedimentation test showed positive role of polymeric coating, as well.

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

Novel Trends in Rheology IV

ISBN

978-0-7354-0935-4

ISSN

—

e-ISSN

—

Počet stran výsledku

8

Strana od-do

284-291

Název nakladatele

American Institute of Physics

Místo vydání

Melville, New York

Místo konání akce

Zlín

Datum konání akce

27. 7. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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