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https://hdl.handle.net/1822/22643
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Campo DC | Valor | Idioma |
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dc.contributor.author | Lopes, A. C. | - |
dc.contributor.author | Caparrós Vásquez, Cristina Maria | - |
dc.contributor.author | Gómez Ribelles, J. L. | - |
dc.contributor.author | Neves, I. C. | - |
dc.contributor.author | Lanceros-Méndez, S. | - |
dc.date.accessioned | 2013-01-15T16:58:09Z | - |
dc.date.available | 2013-01-15T16:58:09Z | - |
dc.date.issued | 2012 | - |
dc.identifier.issn | 1387-1811 | por |
dc.identifier.uri | https://hdl.handle.net/1822/22643 | - |
dc.description.abstract | Poly(vinylidene fluoride), PVDF, based composites with increasing NaY zeolite content up to 32 wt% have been processed by solvent casting and melt crystallisation. Depending on the melting temperature of the polymer, the composite crystallises in the electroactive or non electroactive -phase of the polymer. The dielectric constant at room temperature reaches values larger that 1000 for the 32 wt% composite at 1 kHz and it is mainly attributed to restricted ion mobility and interfacial polarization effects due to the zeolite inclussion, leading also to high dielectric losses. For the higher zeolite concentrations the composite d.c. electrical conductivity is characterized by two conducting regimes separted by a concentration independent breaking voltage of 4 V, which is associated to an intrazeolite charge transport. | por |
dc.description.sponsorship | This work is funded by FEDER funds through the "Programa Operacional Factores de Competitividade - COMPETE" and by National funds by FCT- Fundacao para a Ciencia e a Tecnologia, Project references NANO/NMed-SD/0156/2007, PTDC/CTM/69316/2006, PEst-C/QUI/L110686/2011 and PTDC/CTM-NAN/112574/2009. ACL thanks the FCT for the Grant SFRH/BD/62507/2009. The authors also thank support from the COST Action MP1003, the 'European Scientific Network for Artificial Muscles' (ESNAM). | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.rights | restrictedAccess | por |
dc.subject | Electroactive polymers | por |
dc.subject | Sensor and actuators | por |
dc.subject | Nucleation | por |
dc.subject | Electrical properties | por |
dc.title | Electrical and thermal behavior of γ-phase poly(vinylidene fluoride)/NaY zeolite composites | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://www.sciencedirect.com/ | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 98 | por |
oaire.citationEndPage | 105 | por |
oaire.citationVolume | 161 | por |
dc.identifier.doi | 10.1016/j.micromeso.2012.05.019 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Microporous and Mesoporous Materials | por |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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MMM_2012.pdf Acesso restrito! | 818,21 kB | Adobe PDF | Ver/Abrir |