Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Towards materials with enhanced electro-mechanical response: CaCu3Ti4O12-polydimethylsiloxane composites
Year:2012
Research Areas
  • Physics chemical and mathematical,
  • Engineering
Information
Abstract
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.
International
Si
JCR
Si
Title
JOURNAL OF MATERIALS CHEMISTRY
ISBN
0959-9428
Impact factor JCR
Impact info
Volume
22
10.1039/c2jm34674e
Journal number
47
From page
24705
To page
24712
Month
SIN MES
Ranking
Participants
  • Autor: Jose Francisco Fernández Lozano (UPM)
  • Autor: Miguel Ángel De La Rubia López (UPM)
  • Autor: LAURA J. ROSAMANTA (ICTP CSIC)
  • Autor: PILAR LERET (ICV-CSIC)
  • Autor: Leandro Casaban (Univ Perugia (ITALIA))
  • Autor: Jose M Kenny (ICTP-CSIC)
  • Autor: Miguel A Lopez-Manchado (ICTP-CSIC)
  • Autor: Raquel Verdejo (ICTP-CSIC)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Propiedades ópticas, eléctricas y magnéticas de materiales y sus aplicaciones (POEMMA)
  • Centro o Instituto I+D+i: Centro de Materiales y Dispositivos Avanzados para Tecnologías de Información y Comunicaciones
  • Departamento: Física Aplicada a las Tecnologías de la Información
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
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