Vliv pokrytí částic grafitu vrstvou polyanilinové báze na transport náboje v kompozitech s epoxidovou pryskyřicí

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F07%3A63505365" target="_blank" >RIV/70883521:28110/07:63505365 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Coating of Graphite Particles with Polyaniline Base on Charge Transport in their Epoxy Resin Composites

Popis výsledku v původním jazyce

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-conduc

Název v anglickém jazyce

Effect of Coating of Graphite Particles with Polyaniline Base on Charge Transport in their Epoxy Resin Composites

Popis výsledku anglicky

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-conduc

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/ME%20883" target="_blank" >ME 883: Vývoj materiálů pro elektromagnetickou kompatibilitu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Material Science

ISSN

0022-2461

e-ISSN

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Svazek periodika

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Číslo periodika v rámci svazku

42

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

4942-4946

Kód UT WoS článku

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EID výsledku v databázi Scopus

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