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A solvent dispersion method for the preparation of silicone composites filled with carbon nanotubes

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dc.title A solvent dispersion method for the preparation of silicone composites filled with carbon nanotubes en
dc.contributor.author Kutějová, Lenka
dc.contributor.author Vilčáková, Jarmila
dc.contributor.author Moučka, Robert
dc.contributor.author Kazantseva, Natalia E.
dc.contributor.author Winkler, Martin
dc.contributor.author Babayan, Vladimír Artur
dc.relation.ispartof Chemické listy
dc.identifier.issn 0009-2770 OCLC, Ulrich, Sherpa/RoMEO, JCR
dc.identifier.issn 1213-7103 OCLC, Ulrich, Sherpa/RoMEO, JCR
dc.date.issued 2014
utb.relation.volume 108
utb.relation.issue SPEC. ISSUE 1
dc.citation.spage s78
dc.citation.epage s85
dc.type article
dc.language.iso en
dc.publisher Česká společnost chemická (ČSCH)
dc.relation.uri http://www.chemicke-listy.cz/common/content-issue_s1-volume_108-year_2014.html
dc.subject Carbon black en
dc.subject Carbon nanotubes en
dc.subject Electrical properties en
dc.subject N-methyl-2- pyrrolidone en
dc.subject Nanocomposites en
dc.subject Silicone elastomer en
dc.description.abstract This work deals with preparation of CNT based silicone composites with a view to control the value of percolation threshold. To this end, the effect of organic solvent N-methyl-2-pyrrolidone (NMP) on dispersion of CNT in silicone (resulting in electrically conductive composites) was studied. Nanocomposites preparation comprised several steps: (1) dispersing CNTs in aqueous solution of NMP; (2) mixing them into a low viscosity silicone matrix using sonication; (3) curing of homogeneously distributed CNTbased composition by curing agent. As a result, three types of composites differing in preparation method and with different CNT content (0-7 vol.%) were prepared. DC and AC conductivities as well as dielectric properties of nanocomposites were studied. The results obtained show that modification of CNT caused the increase of percolation threshold from 2 (for unmodified CNT) to 4 vol.%. Such a shift can be explained by the insulation/ separation of individual CNTs. The separation of CNTs decreases the probability of percolation cluster formation, but increases the area of CNT-polymer matrix interface leading to the decrease of charge transport. en
utb.faculty University Institute
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1003782
utb.identifier.obdid 43871821
utb.identifier.scopus 2-s2.0-84901835780
utb.identifier.wok 000344829700015
utb.identifier.coden CHLSA
utb.source j-scopus
dc.date.accessioned 2014-07-07T13:44:00Z
dc.date.available 2014-07-07T13:44:00Z
dc.description.sponsorship European Regional Development Fund (ERDF); national budget of Czech Republic, within the project Centre of Polymer Systems [CZ. 1.05/2.1.00/03.0111]; Operational Program Education for Competitiveness - European Social Fund (ESF); national budget of Czech Republic, within the framework of project Advanced Theoretical and Experimental Studies of Polymer Systems [CZ. 1.07/2.3.00/20.0104]; TBU in Zlin [IGA/FT/2012/024, IGA/FT/2013/024]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Kutějová, Lenka
utb.contributor.internalauthor Vilčáková, Jarmila
utb.contributor.internalauthor Moučka, Robert
utb.contributor.internalauthor Kazantseva, Natalia E.
utb.contributor.internalauthor Winkler, Martin
utb.contributor.internalauthor Babayan, Vladimír Artur
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