Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10216/103046
Autor(es): | Vera Gonçalves Lúcia Brandão Adélio Mendes |
Título: | Development of porous polymer pressure sensors incorporating graphene platelets |
Data de publicação: | 2014 |
Resumo: | Electrically conductive polymer composites (ECPCs) based on porous polymeric matrices of PEBA 4033 incorporating different types of graphene platelets were prepared and tested. PEBA 4033 polymer was mixed with different graphene platelets: grade H5, grade MX and grade Ce750. Porous morphology was obtained for the ECPCs prepared with graphene platelets grade MX and H5, while for the grade Ce750 only a dense ECPCs was obtained. The porous ECPC loaded with 15 vol.% of graphene M5 exhibited a linear piezoresistive response oin a log-log plot. Some limitations were detected for this ECPC, namely hysteresis and drift due to the poor mechanical properties. The porous ECPC loaded with 15 vol.% M5 was further crosslinked, which improved its mechanical properties but the piezoresistive effect became negligible. The incorporation of carbon black in this ECPC formulation was shown to be much more efficient than crosslinking to improve mechanical properties, but the piezoresistive response became poor. |
Assunto: | Engenharia química, Engenharia química Chemical engineering, Chemical engineering |
Áreas do conhecimento: | Ciências da engenharia e tecnologias::Engenharia química Engineering and technology::Chemical engineering |
URI: | https://hdl.handle.net/10216/103046 |
Informação Relacionada: | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Projetos Estratégicos/PEst-C/EQB/UI0511/2013/PROJECTO ESTRATÉGICO - UI 511 - 2013-2014/UI0511 |
Tipo de Documento: | Artigo em Revista Científica Internacional |
Condições de Acesso: | restrictedAccess |
Aparece nas coleções: | FEUP - Artigo em Revista Científica Internacional |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
93866.pdf Restricted Access | Artigo original publicado | 3.65 MB | Adobe PDF | Request a copy from the Author(s) |
93866.1.pdf | Post-Print version | 2.04 MB | Adobe PDF | Ver/Abrir |
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