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Statements

Subject Item
n2:RIV%2F70883521%3A28610%2F14%3A43871792%21RIV15-MSM-28610___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
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. 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.
dcterms:title
A comparative study on the electrical, thermal and mechanical properties of ethylene-octene copolymer based composites with carbon fillers A comparative study on the electrical, thermal and mechanical properties of ethylene-octene copolymer based composites with carbon fillers
skos:prefLabel
A comparative study on the electrical, thermal and mechanical properties of ethylene-octene copolymer based composites with carbon fillers A comparative study on the electrical, thermal and mechanical properties of ethylene-octene copolymer based composites with carbon fillers
skos:notation
RIV/70883521:28610/14:43871792!RIV15-MSM-28610___
n3:aktivita
n19:P
n3:aktivity
P(ED2.1.00/03.0111)
n3:cisloPeriodika
Neuveden
n3:dodaniDat
n4:2015
n3:domaciTvurceVysledku
n7:9978429 n7:7272197 n7:3306917
n3:druhVysledku
n16:J
n3:duvernostUdaju
n8:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
599
n3:idVysledku
RIV/70883521:28610/14:43871792
n3:jazykVysledku
n18:eng
n3:klicovaSlova
Thermal stability; Mechanical properties; Ethylene-octene copolymer; Electrical conductivity; Carbon filler composites
n3:klicoveSlovo
n5:Thermal%20stability n5:Ethylene-octene%20copolymer n5:Electrical%20conductivity n5:Carbon%20filler%20composites n5:Mechanical%20properties
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[FCDFDE68CFD3]
n3:nazevZdroje
Materials and Design
n3:obor
n17:CD
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
6
n3:projekt
n14:ED2.1.00%2F03.0111
n3:rokUplatneniVysledku
n4:2014
n3:svazekPeriodika
60
n3:tvurceVysledku
Svoboda, Petr Poongavalappil, Sameepa Slobodian, Petr Vilčáková, Jarmila Theravalappil, Rajesh Svobodová, Dagmar
n3:wos
000336668000055
s:issn
0261-3069
s:numberOfPages
10
n10:doi
10.1016/j.matdes.2014.04.029
n9:organizacniJednotka
28610