Elektrické vlastnosti compozitů na bázi epoxy-silikonový kaučuk-carbon black

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

PECULIARITY OF ELECTRIC PROPERTIES OF EPOXY/SILICONE RUBBER COMPOSITES FILLED WITH CARBON BLACK

Popis výsledku v původním jazyce

The specifics of electrical properties of epoxy resin/silicone rubber composites filled with carbon black in respect to their morphology and mechanical properties have been studied. There is a significant difference between percolation thresholds in composites with 25 and 50 wt. % of silicon that is attributed to the structure of such hybrid composites. When the concentration of silicon is about 25 wt. %, a multiple percolation threshold is obvious; while at 50 wt. % of silicone it is a single-stage percolation threshold. In the first case, the silicon, present in polymer blend as dispersed phase (in the form of separated non-uniform inclusions), leads to local concentration variations of carbon black per composite volume which is reflected in the composite heterogeneity increase. The rising amount of silicon up to 50 wt. % enhances the uniformity of composite from the viewpoint of its electrical response, though silicon does not form the extended phase even with so high concentration.

Název v anglickém jazyce

PECULIARITY OF ELECTRIC PROPERTIES OF EPOXY/SILICONE RUBBER COMPOSITES FILLED WITH CARBON BLACK

Popis výsledku anglicky

The specifics of electrical properties of epoxy resin/silicone rubber composites filled with carbon black in respect to their morphology and mechanical properties have been studied. There is a significant difference between percolation thresholds in composites with 25 and 50 wt. % of silicon that is attributed to the structure of such hybrid composites. When the concentration of silicon is about 25 wt. %, a multiple percolation threshold is obvious; while at 50 wt. % of silicone it is a single-stage percolation threshold. In the first case, the silicon, present in polymer blend as dispersed phase (in the form of separated non-uniform inclusions), leads to local concentration variations of carbon black per composite volume which is reflected in the composite heterogeneity increase. The rising amount of silicon up to 50 wt. % enhances the uniformity of composite from the viewpoint of its electrical response, though silicon does not form the extended phase even with so high concentration.

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název statě ve sborníku

PPS-24 The Polymer Processing Society 24th Annual Meeting

ISBN

88-7897-025-5

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

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Název nakladatele

Polymer Processing Society (IT)

Místo vydání

Salerno

Místo konání akce

Salerno

Datum konání akce

19. 6. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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