Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/64648
Título: | Highly sensitive piezoresistive graphene-based stretchable composites for sensing applications |
Autor(es): | Costa, P. Gonçalves, S. Mora, H. Carabineiro, S. A. C. Viana, J. C. Lanceros-Méndez, S. |
Palavras-chave: | graphene-based materials thermoplastic elastomers nano composites piezoresistive smart materials multifunctional materials |
Data: | 2019 |
Editora: | ACS Publications |
Revista: | ACS Applied Materials and Interfaces |
Resumo(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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/64648 |
DOI: | 10.1021/acsami.9b19294 |
ISSN: | 1944-8244 |
e-ISSN: | 1944-8252 |
Versão da editora: | https://pubs.acs.org/doi/10.1021/acsami.9b19294 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CAlg - Artigos em revistas internacionais / Papers in international journals IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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13.pdf Acesso restrito! | 2,38 MB | Adobe PDF | Ver/Abrir |