Odezva v elektrické vodivosti na strukturní relaxaci PMMA plněného uhlíkovými nanotrubicemi

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F06%3A63504459" target="_blank" >RIV/70883521:28110/06:63504459 - 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 Response to Structural Relaxation of a-PMMA Filled with Carbon Black and Carbon Nanotubes

Popis výsledku v původním jazyce

The phenomenon of structural relaxation is mainly investigated by enthalpy or volume isothermal measurements. It is possible to significantly change conductivity of polymers by its blending with conducting filer. In the case of composite based as PMMA/carbon black, CB, percolation threshold is found somewhere around concentration 5 vol. % of CB on carbon nanotubes, when conductivity increases over nine orders comparing to pure PMMA. This fact is usually explained by creating of conductive paths by carbon black particles in insulator polymer matrix. This structure is very sensitive to volume changes implicated creating or destroying of conductivity paths, with strong dispersion in glass transition region. According this, the measurement of electrical conductivity is capable to detect sample changes caused either by thermal expansion but also by isothermal structural relaxation of the material.

Název v anglickém jazyce

Electrical Conductivity Response to Structural Relaxation of a-PMMA Filled with Carbon Black and Carbon Nanotubes

Popis výsledku anglicky

The phenomenon of structural relaxation is mainly investigated by enthalpy or volume isothermal measurements. It is possible to significantly change conductivity of polymers by its blending with conducting filer. In the case of composite based as PMMA/carbon black, CB, percolation threshold is found somewhere around concentration 5 vol. % of CB on carbon nanotubes, when conductivity increases over nine orders comparing to pure PMMA. This fact is usually explained by creating of conductive paths by carbon black particles in insulator polymer matrix. This structure is very sensitive to volume changes implicated creating or destroying of conductivity paths, with strong dispersion in glass transition region. According this, the measurement of electrical conductivity is capable to detect sample changes caused either by thermal expansion but also by isothermal structural relaxation of the material.

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GP106%2F06%2FP189" target="_blank" >GP106/06/P189: Adaptace vlastností polymerních nanokompozitů na bázi uhlíkových nanotrubic z pohledu teplotní stability</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název statě ve sborníku

Polymer Processing Society 22nd Annual Meeting PPS

ISBN

4-9093109-2-6

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

1-1

Název nakladatele

Polymer Processing Society

Místo vydání

Akron

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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