About: Synthesis and magnetorheological characteristics of ribbon-like, polypyrrole-coated carbonyl iron suspensions under oscillatory shear

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://onlinelibrary.wiley.com/doi/10.1002/app.38473/pdf
Description	One of the crucial problems of classical magnetorheological (MR) fluids is their high rate of sedimentation. This disadvantage may be substantially eliminated using core-shell particles. The aim of this study is to prepare spherical carbonyl iron (CI) particles coated with conducing polymer polypyrrole (PPy) with ribbon-like morphology. Scanning electron microscopy proved the formation of the ribbon-like layer onto CI particles while Fourier transform infrared spectroscopy confirmed the chemical structure of PPy. The magnetic properties observed via vibrating sample magnetometer showed decreased magnetization saturation of core-shell-structured particles due to the existence of non-magnetic surface layer. MR measurements performed under oscillatory shear flow as a function of the applied magnetic flux density, temperature, and particle concentration showed that core-shell particle-based MR suspension exhibits sufficient MR performance for practical applications. Moreover, the suspension stability is promoted significantly when core-shell particles are used as a dispersed phase. One of the crucial problems of classical magnetorheological (MR) fluids is their high rate of sedimentation. This disadvantage may be substantially eliminated using core-shell particles. The aim of this study is to prepare spherical carbonyl iron (CI) particles coated with conducing polymer polypyrrole (PPy) with ribbon-like morphology. Scanning electron microscopy proved the formation of the ribbon-like layer onto CI particles while Fourier transform infrared spectroscopy confirmed the chemical structure of PPy. The magnetic properties observed via vibrating sample magnetometer showed decreased magnetization saturation of core-shell-structured particles due to the existence of non-magnetic surface layer. MR measurements performed under oscillatory shear flow as a function of the applied magnetic flux density, temperature, and particle concentration showed that core-shell particle-based MR suspension exhibits sufficient MR performance for practical applications. Moreover, the suspension stability is promoted significantly when core-shell particles are used as a dispersed phase. (en)
Title	Synthesis and magnetorheological characteristics of ribbon-like, polypyrrole-coated carbonyl iron suspensions under oscillatory shear Synthesis and magnetorheological characteristics of ribbon-like, polypyrrole-coated carbonyl iron suspensions under oscillatory shear (en)
skos:prefLabel	Synthesis and magnetorheological characteristics of ribbon-like, polypyrrole-coated carbonyl iron suspensions under oscillatory shear Synthesis and magnetorheological characteristics of ribbon-like, polypyrrole-coated carbonyl iron suspensions under oscillatory shear (en)
skos:notation	RIV/70883521:28610/13:43869923!RIV14-MSM-28610___
http://linked.open...avai/predkladatel	Univerzitní institut
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(ED2.1.00/03.0111), S
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Mrlík, Miroslav Pavlínek, Vladimír Sedlačík, Michal Sáha, Petr Bažant, Pavel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Tomáše Bati ve Zlíně / Univerzitní institut
http://linked.open...dnocenehoVysledku	109484
http://linked.open...ai/riv/idVysledku	RIV/70883521:28610/13:43869923
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	carbonyl iron\|\|core-shell\|\|magnetorheological fluid\|\|polypyrrole\|\|ribbon-like particles\|\|viscoelasticity (en)
http://linked.open.../riv/klicoveSlovo	carbonyl iron\|\|core-shell\|\|magnetorheological fluid\|\|polypyrrole\|\|ribbon-like particles\|\|viscoelasticity
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[7931F57FD81E]
http://linked.open...i/riv/nazevZdroje	Journal of Applied Polymer Science
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Centre of Polymer Systems
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	128
http://linked.open...iv/tvurceVysledku	Bažant, Pavel Filip, Petr Mrlík, Miroslav Pavlínek, Vladimír Sedlačík, Michal Sáha, Petr Peer, Petra
http://linked.open...ain/vavai/riv/wos	000315910500049
issn	0021-8995
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/app.38473
http://localhost/t...ganizacniJednotka	28610

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