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A systematical study of the overall influence of carbon allotrope additives on performance, stability and redispersibility of magnetorheological fluids

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dc.title A systematical study of the overall influence of carbon allotrope additives on performance, stability and redispersibility of magnetorheological fluids en
dc.contributor.author Cvek, Martin
dc.contributor.author Mrlík, Miroslav
dc.contributor.author Moučka, Robert
dc.contributor.author Sedlačík, Michal
dc.relation.ispartof Colloids and Surfaces A: Physicochemical and Engineering Aspects
dc.identifier.issn 0927-7757 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2018
utb.relation.volume 543
dc.citation.spage 83
dc.citation.epage 92
dc.type article
dc.language.iso en
dc.publisher Elsevier
dc.identifier.doi 10.1016/j.colsurfa.2018.01.046
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S092777571830058X
dc.subject Magnetorheology en
dc.subject Additive en
dc.subject Graphene en
dc.subject Suspension stabilization en
dc.subject Redispersibility en
dc.subject Modeling en
dc.description.abstract To this date many different additives have been used in order to stabilize the magnetorheological fluids or to enhance their performance, but their ranking in terms of the efficiency is still lacking. To design the efficient magnetorheological fluid it is necessary to analyse the overall effects of the additives on its complex behavior. In this study, carbon allotropes – fullerene powder, carbon nanotubes, graphene nanoplatelets – were added into the carbonyl iron-based magnetorheological fluids to examine their effect on stability and utility properties. The magnetorheological behavior of designed mixtures was investigated and obtained experimental data were numerically evaluated using the Robertson–Stiff model. While the fine fullerene powder acted as a gap-filler reinforcing field-induced structures, the other additives employed rather disrupted the microstructure during the shear. The role of the additives during the formation of field-induced structures was pointed out. The sedimentation stability was examined using Turbiscan analyzer as well as by direct observation method. Both approaches revealed that the carbon nanotubes possessed the highest stabilization effect. They also most effectively prevented packing the iron microparticles into a stiff sediment as was confirmed via redispersibility measurements. © 2018 Elsevier B.V. en
utb.faculty University Institute
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1007751
utb.identifier.obdid 43879644
utb.identifier.scopus 2-s2.0-85041679301
utb.identifier.wok 000426428500010
utb.identifier.coden CPEAE
utb.source j-scopus
dc.date.accessioned 2018-02-26T10:20:05Z
dc.date.available 2018-02-26T10:20:05Z
dc.description.sponsorship LO1504, NPU, Northwestern Polytechnical University; MEYS, Ministry of Education, Youth and Science; IGA/CPS/2017/004
dc.description.sponsorship Internal Grant Agency of Tomas Bata University in Zlin [IGA/CPS/2017/004]; Ministry of Education, Youth and Sports of the Czech Republic - Program NPU I [LO1504]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Cvek, Martin
utb.contributor.internalauthor Mrlík, Miroslav
utb.contributor.internalauthor Moučka, Robert
utb.contributor.internalauthor Sedlačík, Michal
utb.scopus.affiliation Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Trida T. Bati 5678, Zlin, Czech Republic; Polymer Centre, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 275, Zlin, Czech Republic
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