Electrical conductivity changes of silicone or polyurethane rubber/carbon black composites during cyclic pressure deformation.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F02%3A63500596" target="_blank" >RIV/70883521:28110/02:63500596 - 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

Electrical conductivity changes of silicone or polyurethane rubber/carbon black composites during cyclic pressure deformation.

Popis výsledku v původním jazyce

Elastic composites consisting of a non-conductive matrix and conductive filler change their electrical properties under deformation, which enables them to be used as pressure sensors. For this purpose change in electrical conductivity of carbon black/silicone or polyurethane rubber composites during cyclic pressure deformation has been studied. The findings revealed that the character of conductivity changes depends on the filler concentration. While below the percolation threshold the conductivity decreases with the pressure deformation, above this critical filler content conductivity increases. This behaviour is explained as a result of the different space structure of conducting particles in the composite matrix. Cyclic pressure experiments showed that even a small deformation causes irreversible changes in the composite structure and, consequently, non-reproducibility of the repeated loadings.

Název v anglickém jazyce

Electrical conductivity changes of silicone or polyurethane rubber/carbon black composites during cyclic pressure deformation.

Popis výsledku anglicky

Elastic composites consisting of a non-conductive matrix and conductive filler change their electrical properties under deformation, which enables them to be used as pressure sensors. For this purpose change in electrical conductivity of carbon black/silicone or polyurethane rubber composites during cyclic pressure deformation has been studied. The findings revealed that the character of conductivity changes depends on the filler concentration. While below the percolation threshold the conductivity decreases with the pressure deformation, above this critical filler content conductivity increases. This behaviour is explained as a result of the different space structure of conducting particles in the composite matrix. Cyclic pressure experiments showed that even a small deformation causes irreversible changes in the composite structure and, consequently, non-reproducibility of the repeated loadings.

Druh

D - Stať ve sborníku

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GP104%2F01%2FP129" target="_blank" >GP104/01/P129: Vliv deformace na změnu elektrického chování elastických kompozitů v oblasti perkolačního prahu</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

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

Název statě ve sborníku

ANTEC 2002, Annual Technical Conference

ISBN

0-9716435-0-4

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

1298-1301

Název nakladatele

Society of Plastics Engineers

Místo vydání

Dallas, USA

Místo konání akce

San Francisco, CA, USA

Datum konání akce

5. 5. 2002

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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