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Statements

Subject Item
n2:RIV%2F70883521%3A28110%2F02%3A63500730%21RIV%2F2003%2FMSM%2F281103%2FN
rdf:type
n3:Vysledek skos:Concept
dcterms:description
This paper reports results on experimental investigation of the conductivity behavior of carbon fiber filled polymer composites at the percolation threshold. Two types of carbon fiber - epoxy matrix composites have been studied and comparison of the measured data has been made. These two types of composites differ in the surface modification of carbon fibers (in one case the surface of carbon fibers is covered with polymer beads using the microencapsulation technology, in the other their surface stayed unmodified). Experimental data reveal that surface modification of carbon fibers influences greatly the DC conductivity (percolation threshold moves to higher concentrations) but does not influence the AC electrical properties. From the frequency dependence of conductivity on fiber concentration it becomes clear that it is not possible to predict the high frequency conductivity (electromagnetic interference shielding properties) based on the DC conductivity. Percolation behavior of conductivity as a fun This paper reports results on experimental investigation of the conductivity behavior of carbon fiber filled polymer composites at the percolation threshold. Two types of carbon fiber - epoxy matrix composites have been studied and comparison of the measured data has been made. These two types of composites differ in the surface modification of carbon fibers (in one case the surface of carbon fibers is covered with polymer beads using the microencapsulation technology, in the other their surface stayed unmodified). Experimental data reveal that surface modification of carbon fibers influences greatly the DC conductivity (percolation threshold moves to higher concentrations) but does not influence the AC electrical properties. From the frequency dependence of conductivity on fiber concentration it becomes clear that it is not possible to predict the high frequency conductivity (electromagnetic interference shielding properties) based on the DC conductivity. Percolation behavior of conductivity as a fun
dcterms:title
AC Conductivity of Carbon Fiber - Polymer Matrix AC Conductivity of Carbon Fiber - Polymer Matrix
skos:prefLabel
AC Conductivity of Carbon Fiber - Polymer Matrix AC Conductivity of Carbon Fiber - Polymer Matrix
skos:notation
RIV/70883521:28110/02:63500730!RIV/2003/MSM/281103/N
n4:strany
95-103
n4:aktivita
n14:Z
n4:aktivity
Z(MSM 265200015)
n4:cisloPeriodika
1
n4:dodaniDat
n5:2003
n4:domaciTvurceVysledku
n11:1318896 n11:1193546 n11:9215166
n4:druhVysledku
n8:J
n4:duvernostUdaju
n15:S
n4:entitaPredkladatele
n16:predkladatel
n4:idSjednocenehoVysledku
637326
n4:idVysledku
RIV/70883521:28110/02:63500730
n4:jazykVysledku
n10:eng
n4:klicovaSlova
Carbon Fibers, Electromagnetic Compatibility
n4:klicoveSlovo
n9:Electromagnetic%20Compatibility n9:Carbon%20Fibers
n4:kodStatuVydavatele
US - Spojené státy americké
n4:kontrolniKodProRIV
[872124BD7C82]
n4:nazevZdroje
Polymer Composites
n4:obor
n6:JI
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
3
n4:pocetUcastnikuAkce
0
n4:pocetZahranicnichUcastnikuAkce
0
n4:rokUplatneniVysledku
n5:2002
n4:svazekPeriodika
23
n4:tvurceVysledku
Špaček, Josef Křesálek, Vojtěch Římská, Zdeňka
n4:zamer
n18:MSM%20265200015
s:issn
0272-8397
s:numberOfPages
9
n7:organizacniJednotka
28110