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| Description
| - Práce zkoumá vliv pokrytí částic grafitu vrstvou polyanilinové báze na transport náboje v kompozitech s epoxidovou pryskyřicí. Na rozdíl od postupného nárustu vodivosti kompozitů epoxidové pryskyřice a čistých částic plniva v oblasti koncentrace plniva 20-52 obj.%, u kompozitů s částicemi pokrytými 10 hm.% polyanilinové báze dochází k příkrému nárustu vodivosti v oblasti koncentrace 50 obj.% plniva. Frekvenční a teplotní závislost vodivosti ukazuje, že v obou případech měl materiál s nejvyšším zkoumaným množstvím plniva (52 obj.%) ohmickou vodivost. Vodivost kompozitu s 20 hm.% polyanilinu na povrchu částic naopak narůstala v celé oblasti koncentrací pouze mírně. Výsledky dokazují, že nedokonalé pokrytí nepravidelného povrchu částic 10 hm.% polyanilinové báze umožňuje vznik vodivých cest a 20 hm.% polyanilinu na povrchu grafitové částice naopak vytváří dokonalou izolační vrstvu. (cs)
- Investigation of the charge transport in epoxy resin composites of graphite particles coated with nonconducting polyaniline base layer is presented . In contrast with a gradual increase in DC conductivity of composites in the range 20-52 vol. % of pure graphite particles, a steep rise in conductivity, in composites of graphite coated with 10 % of polyaniline at particle concentration 50 vol. % appeared. The frequency and temperature dependences indicate that in both cases at maximum loading (52 vol. %), the material had ohmic conductivity. In contrast, the conductivity of composites of particles with 20 % of polyaniline, in the whole range of particle concentration, only slightly increased. These findings suggest that in case of 10 % polyanilie coating, due to irregular surface structure, a certain amount of uncoated parts is present which enables formation of conducting contacts with ohmic conductivity in the percolation area. The 20 % of polyaniline coating forms a perfect non-conducting layer.
- Investigation of the charge transport in epoxy resin composites of graphite particles coated with nonconducting polyaniline base layer is presented . In contrast with a gradual increase in DC conductivity of composites in the range 20-52 vol. % of pure graphite particles, a steep rise in conductivity, in composites of graphite coated with 10 % of polyaniline at particle concentration 50 vol. % appeared. The frequency and temperature dependences indicate that in both cases at maximum loading (52 vol. %), the material had ohmic conductivity. In contrast, the conductivity of composites of particles with 20 % of polyaniline, in the whole range of particle concentration, only slightly increased. These findings suggest that in case of 10 % polyanilie coating, due to irregular surface structure, a certain amount of uncoated parts is present which enables formation of conducting contacts with ohmic conductivity in the percolation area. The 20 % of polyaniline coating forms a perfect non-conducting layer. (en)
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| Title
| - Effect of Coating of Graphite Particles with Polyaniline Base on Charge Transport in their Epoxy Resin Composites
- Effect of Coating of Graphite Particles with Polyaniline Base on Charge Transport in their Epoxy Resin Composites (en)
- Vliv pokrytí částic grafitu vrstvou polyanilinové báze na transport náboje v kompozitech s epoxidovou pryskyřicí (cs)
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| skos:prefLabel
| - Effect of Coating of Graphite Particles with Polyaniline Base on Charge Transport in their Epoxy Resin Composites
- Effect of Coating of Graphite Particles with Polyaniline Base on Charge Transport in their Epoxy Resin Composites (en)
- Vliv pokrytí částic grafitu vrstvou polyanilinové báze na transport náboje v kompozitech s epoxidovou pryskyřicí (cs)
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| skos:notation
| - RIV/70883521:28110/07:63505365!RIV08-MSM-28110___
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| http://linked.open.../vavai/riv/strany
| |
| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(ME 883), Z(MSM7088352101)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/70883521:28110/07:63505365
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - graphite particles/epoxy resin composites; particles coated with polyaniline base; DC and AC conductivity; character of the charge transport (en)
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| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Journal of Material Science
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Quadrat, Otakar
- Sáha, Petr
- Moučka, Robert
- Vilčáková, Jarmila
- Pelíšková, Michaela
- Omastová, Maria
- Stejkal, Jaroslav
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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