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Improved response of ionic liquid-based bending actuators by tailored interaction with the polar fluorinated polymer matrix

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Resumo:Poly(vinylidene fluoride) (PVDF), poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE), poly(vinylidene fluoride-co-hexafluropropylene) (PVDF-HFP) and poly(vinylidene fluoride-co-chlorotrifluoroethylene) (PVDF-CTFE) were evaluated for the development of ionic liquid (IL) - polymer composite bending actuators. The selected guest IL, 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide, [Emim][TFSI], was incorporated into the different host polymer matrixes in concentrations ranging from 10 to 40wt%. The IL/polymer composites electrical properties strongly depend on the IL content. The largest bending response was found for the IL/PVDF-TrFE composites with a maximum bending value of 3.5mm using a frequency of 100mHzat an applied potential difference of 5.0 Vpp. Thus, PVDF-TrFE are attractive candidates for the development of high performance bending actuators.
Autores principais:Dias, Juliana C.
Outros Autores:Correia, Daniela M.; Costa, Carlos M.; Ribeiro, Clarisse; Maceiras, Alberto; Vilas, José L.; Botelho, Gabriela; Bermudez, Verónica de Zea; Lanceros-Méndez, S.
Assunto:Actuators Bending actuation Copolymers Ionic liquid PVDF
Ano:2019
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso restrito
Instituição associada:Universidade do Minho
Idioma:inglês
Origem:RepositóriUM - Universidade do Minho

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