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A comparative study on the electrical, thermal and mechanical properties of ethylene-octene copolymer based composites with carbon fillers

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dc.title A comparative study on the electrical, thermal and mechanical properties of ethylene-octene copolymer based composites with carbon fillers en
dc.contributor.author Theravalappil, Rajesh
dc.contributor.author Svoboda (FT), Petr
dc.contributor.author Vilčáková, Jarmila
dc.contributor.author Poongavalappil, Sameepa
dc.contributor.author Slobodian, Petr
dc.contributor.author Svobodová, Dagmar
dc.relation.ispartof Materials and Design
dc.identifier.issn 0261-3069 Scopus Sources, Sherpa/RoMEO, JCR
dc.identifier.issn 1873-4197 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2014
utb.relation.volume 60
dc.citation.spage 458
dc.citation.epage 467
dc.type article
dc.language.iso en
dc.publisher Elsevier, Ltd.
dc.identifier.doi 10.1016/j.matdes.2014.04.029
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0261306914002970
dc.subject Carbon filler composites en
dc.subject Electrical conductivity en
dc.subject Ethylene-octene copolymer en
dc.subject Mechanical properties en
dc.subject Thermal stability en
dc.description.abstract Conducting polymer composites (CPC) were prepared with an ethylene-octene copolymer (EOC) matrix and with either carbon fibers (CFs) or multiwall carbon nanotubes (MWCNTs) as fillers. Their electrical and thermal conductivities, mechanical properties and thermal stabilities were evaluated and compared. CF/EOC composites showed percolation behavior at a lower filler level (5. wt.%) than the MWCNT/EOC composites (10. wt.%) did. Alternating current (AC) conductivity and real part of permittivity (dielectric constant) of these composites were found to be frequency-dependent. Dimensions and electrical conductivities of individual fillers have a great influence on the conductivities of the composites. CF/EOC composites possessed higher conductivity than the MWCNT-composites at all concentrations, due to the higher length and diameter of the CF filler. Both electrical and thermal conductivities were observed to increase with increasing filler level. Tensile moduli and thermal stabilities of both (CF/EOC and MWCNT/EOC) composites increase with rising filler content. Improvements in conductivities and mechanical properties were achieved without any significant increase in the hardness of the composites; therefore, they can be potentially used in pressure/strain sensors. Thermoelectric behavior of the composites was also studied. Accordingly, CF and MWCNT fillers are versatile and playing also other roles in their composites than just being conducting fillers. © 2014 Elsevier Ltd. en
utb.faculty University Institute
utb.faculty Faculty of Technology
utb.faculty Faculty of Humanities
dc.identifier.uri http://hdl.handle.net/10563/1003761
utb.identifier.obdid 43872011
utb.identifier.scopus 2-s2.0-84899703641
utb.identifier.wok 000336668000055
utb.source j-scopus
dc.date.accessioned 2014-06-17T19:02:19Z
dc.date.available 2014-06-17T19:02:19Z
dc.description.sponsorship Operational Programme Research and Development for Innovations; European Regional Development Fund (ERDF); National Budget of Czech Republic within the framework of the Centre of Polymer Systems project [CZ.1.05/2.1.00/03.0111]; KFUPM
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Theravalappil, Rajesh
utb.contributor.internalauthor Svoboda (FT), Petr
utb.contributor.internalauthor Vilčáková, Jarmila
utb.contributor.internalauthor Poongavalappil, Sameepa
utb.contributor.internalauthor Slobodian, Petr
utb.contributor.internalauthor Svobodová, Dagmar
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