Please use this identifier to cite or link to this item: https://hdl.handle.net/1822/64648

TitleHighly sensitive piezoresistive graphene-based stretchable composites for sensing applications
Author(s)Costa, P.
Gonçalves, S.
Mora, H.
Carabineiro, S. A. C.
Viana, J. C.
Lanceros-Méndez, S.
Keywordsgraphene-based materials
thermoplastic elastomers
nano composites
piezoresistive
smart materials
multifunctional materials
Issue date2019
PublisherACS Publications
JournalACS Applied Materials and Interfaces
Abstract(s)Nanocarbonaceous materials with specific geometries and physicochemical properties allow the development of high-performance polymer-based smart composite materials. Among them, chemical treatments of graphene allow tailoring its electrical conductivity and, therefore, tuning functional response of materials for sensing applications. Polymer-based nanocomposites have been developed from styrene–ethylene–butylene–styrene (SEBS), a high deformation thermoplastic elastomer, and different graphene-based fillers, including graphene oxide (GO), reduced graphene oxide (rGO), and graphene nanoplatelets (G-NPLs). It is shown that the electrical conductivity shows a percolation threshold around 2 wt % for GO and rGO, remaining nearly independent of the filler content for G-NPL filler contents up to 6 wt %. Furthermore, GO/SEBS and rGO/SEBS composites show high piezoresistive sensibility with gauge factors ranging from 15 up to 120 for strains up to 10%. Thus, GO/SEBS and rGO/SEBS composites can represent a new generation of materials for strain sensor applications, as demonstrated in their implementation in a hand glove prototype with finger movement monitoring.
TypeArticle
URIhttps://hdl.handle.net/1822/64648
DOI10.1021/acsami.9b19294
ISSN1944-8244
e-ISSN1944-8252
Publisher versionhttps://pubs.acs.org/doi/10.1021/acsami.9b19294
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CAlg - Artigos em revistas internacionais / Papers in international journals
FUNCTIONAL AND SMART MATERIALS AND SURFACES FOR ADVANCED APPLICATIONS (2018 - ...)
IPC - Artigos em revistas científicas internacionais com arbitragem

Files in This Item:
File Description SizeFormat 
13.pdf
  Restricted access
2,38 MBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID