Piezoresistive effect in polypropylene-carbon nanofiber composites obtained by shear extrusion

doi:10.1088/0964-1726/19/6/065013

Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/13457

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Campo DC	Valor	Idioma
dc.contributor.author	Paleo, A. J.	-
dc.contributor.author	Hattum, F. W. J. van	-
dc.contributor.author	Pereira, J.	-
dc.contributor.author	Rocha, J. G.	-
dc.contributor.author	Silva, J.	-
dc.contributor.author	Sencadas, Vítor João Gomes Silva	-
dc.contributor.author	Lanceros-Méndez, S.	-
dc.date.accessioned	2011-09-06T09:04:39Z	-
dc.date.available	2011-09-06T09:04:39Z	-
dc.date.issued	2010-06	-
dc.identifier.issn	0964-1726	por
dc.identifier.issn	1361-665X	por
dc.identifier.uri	https://hdl.handle.net/1822/13457	-
dc.description.abstract	The piezoresistive effect on poly(propylene) (PP)–carbon nanofibre (CNF) composites fabricated by twin-screw extrusion and compression moulding has been investigated. The electrical and mechanical properties of PP/CNF composites have been obtained as a function of CNF concentration. Electrical conductivity exhibited low thresholds and values close to the required levels for EMI shielding applications at 2.4 vol%. Meanwhile the elastic modulus showed an enhancement with a maximum up to 130% for one of the composites at 0.9 vol% loading. Further, the piezoresistive response has been evaluated in four-point bending. Positive gauge factors between 2 and 2.5 have been obtained. The highest gauge factors are found within the percolation threshold. The characteristics of the materials and the production technique make them suitable for large scale applications.	por
dc.description.sponsorship	Fundação para a Ciência e a Tecnologia (FCT) - SFRH/BD/66930/2009/, SFRH/BD/60623/2009, SFRH/BPD/63148/2009	por
dc.language.iso	eng	por
dc.publisher	IOP Publishing	por
dc.rights	restrictedAccess	por
dc.title	Piezoresistive effect in polypropylene-carbon nanofiber composites obtained by shear extrusion	por
dc.type	article	-
dc.peerreviewed	yes	por
dc.relation.publisherversion	http://iopscience.iop.org/	por
sdum.publicationstatus	published	por
oaire.citationStartPage	065013	por
oaire.citationIssue	6	por
oaire.citationTitle	Smart Materials and Structures	por
oaire.citationVolume	19	por
dc.identifier.doi	10.1088/0964-1726/19/6/065013	por
dc.subject.wos	Science & Technology	por
sdum.journal	Smart Materials and Structures	por
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