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On the enhanced sedimentation stability and electrorheological performance of intelligent fluids based on sepiolite particles

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dc.title On the enhanced sedimentation stability and electrorheological performance of intelligent fluids based on sepiolite particles en
dc.contributor.author Kutálková, Erika
dc.contributor.author Plachý, Tomáš
dc.contributor.author Sedlačík, Michal
dc.relation.ispartof Journal of Molecular Liquids
dc.identifier.issn 0167-7322 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2020
utb.relation.volume 309
dc.type article
dc.language.iso en
dc.publisher Elsevier B.V.
dc.identifier.doi 10.1016/j.molliq.2020.113120
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0167732219365456
dc.subject Electrorneology en
dc.subject Sepiolite en
dc.subject Sedimentation stability en
dc.subject Yield stress en
dc.description.abstract Electrorheological fluids are intelligent materials with the potential for use in a breadth of applications. However, their utilization has been restricted due to poor sedimentation stability and limited performance in the presence of an electric field. Our study investigates the possibility of employing sepiolite particles with their thickness in nanometres to enhance the sedimentation stability of electrorheological fluids. Indeed, the high aspect ratios of such particles have the potential to heighten any electrorheological effect. The rheological properties of the fluids were gauged via steady shear and oscillatory shear tests, in the absence or presence of an external electric field. The electrorheological performance of the systems was further analysed with the aid of dielectric spectroscopy. A test sample containing the greatest amount of sepiolite particles (15 wt%) in a silicone-oil based system was observed to create a solid gel-like structure that completely suppressed sedimentation of the particles; thus, its sedimentation ratio after 200 h was equal to 1. Viscoelastic moduli obtained during measurements for amplitude sweep in the absence of an electric field confirmed a certain extent of elastic behaviour, while the resultant structure exhibited a relatively solid characteristic. © 2020 Elsevier B.V. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1009664
utb.identifier.scopus 2-s2.0-85083424298
utb.identifier.wok 000544211600014
utb.identifier.coden JMLID
utb.source j-scopus
dc.date.accessioned 2020-05-06T19:41:53Z
dc.date.available 2020-05-06T19:41:53Z
dc.description.sponsorship Internal Grant Agency of Tomas Bata University in Zlin [IGA/CPS/2018/004, IGA/CPS/2019/005]; Ministry of Education, Youth and Sports of the Czech RepublicMinistry of Education, Youth & Sports - Czech Republic [LO1504]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Kutálková, Erika
utb.contributor.internalauthor Plachý, Tomáš
utb.contributor.internalauthor Sedlačík, Michal
utb.fulltext.sponsorship The authors wish to thank the Internal Grant Agency of Tomas Bata University in Zlín (projects nos. IGA/CPS/2018/004 and IGA/CPS/2019/005 ) for its financial support. This work was also supported by the Ministry of Education, Youth and Sports of the Czech Republic – Programme NPU I [reg. number: LO1504 ].
utb.wos.affiliation [Kutalkova, Erika; Plachy, Tomas; Sedlacik, Michal] Tomas Bata Univ Zlin, Univ Inst, Ctr Polymer Syst, Trida T Bati 5678, Zlin 76001, Czech Republic; [Sedlacik, Michal] Tomas Bata Univ Zlin, Fac Technol, Dept Prod Engn, Vavreckova 275, Zlin 76001, Czech Republic
utb.scopus.affiliation Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida T. Bati 5678, Zlín, 760 01, Czech Republic; Department of Production Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavreckova 275, Zlín, 760 01, Czech Republic
utb.fulltext.projects IGA/CPS/2018/004
utb.fulltext.projects IGA/CPS/2019/005
utb.fulltext.projects LO1504
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