Towards materials with enhanced electro-mechanical response: CaCu3Ti4O12-polydimethylsiloxane composites

Jiménez Rosamanta, Laura and Leret Molto, Pilar and Casaban, Leandro and Hernández Santana, Marianella and Rubia López, Miguel Ángel de la and Fernández Lozano, José Francisco and Kenny, Jose María and López Manchado, Miguel Ángel and Verdejo Márquez, Raquel (2012). Towards materials with enhanced electro-mechanical response: CaCu3Ti4O12-polydimethylsiloxane composites. "Journal of Materials Chemistry", v. 22 (n. 47); pp. 24705-24712. ISSN 0959-9428. https://doi.org/10.1039/c2jm34674e.

Description

Title: Towards materials with enhanced electro-mechanical response: CaCu3Ti4O12-polydimethylsiloxane composites
Author/s:
  • Jiménez Rosamanta, Laura
  • Leret Molto, Pilar
  • Casaban, Leandro
  • Hernández Santana, Marianella
  • Rubia López, Miguel Ángel de la
  • Fernández Lozano, José Francisco
  • Kenny, Jose María
  • López Manchado, Miguel Ángel
  • Verdejo Márquez, Raquel
Item Type: Article
Título de Revista/Publicación: Journal of Materials Chemistry
Date: 2012
ISSN: 0959-9428
Volume: 22
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

We describe a straightforward production pathway of polymer matrix composites with increased dielectric constant for dielectric elastomer actuators (DEAs). Up to date, the approach of using composites made of high dielectric constant ceramics and insulating polymers has not evidenced any improvement in the performance of DEA devices, mainly as a consequence of the ferroelectric nature of the employed ceramics. We propose here an unexplored alternative to these traditional fillers, introducing calcium copper titanate (CCTO) CaCu3Ti4O12, which has a giant dielectric constant making it very suitable for capacitive applications. All CCTO-polydimethylsiloxane (PDMS) composites developed display an improved electro-mechanical performance. The largest actuation improvement was achieved for the composite with 5.1 vol% of CCTO, having an increment in the actuation strain of about 100% together with a reduction of 25% in the electric field compared to the raw PDMS matrix.

More information

Item ID: 19023
DC Identifier: http://oa.upm.es/19023/
OAI Identifier: oai:oa.upm.es:19023
DOI: 10.1039/c2jm34674e
Official URL: http://pubs.rsc.org/en/content/articlelanding/2012/jm/c2jm34674e#!divAbstract
Deposited by: Memoria Investigacion
Deposited on: 08 Sep 2013 07:39
Last Modified: 21 Apr 2016 17:16
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