Bending deformation of neutral polymer gels induced by electric fields

J. Fehér, G. Filipcsei, J. Szalma, M. Zrínyi

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

A new driving mechanism was developed to induce deformation of neutral polymer gels in a non-conductive medium. The main idea was to incorporate finely distributed colloidal particles into a swollen network responding to electric field. Since the particles cannot leave the gel matrix, so that all of the forces acting on the particles are directly transmitted to the polymer chains, resulting in either the locomotion or the deformation of the gel. Structural formation of TiO2 particles dispersed in silicon oil and bending deformation of weakly crosslinked poly(dimethyl siloxane) gels containing finely distributed TiO2 particles have been studied. Under electric field these gels undergo a significant and quick bending. We have found that undulation of the electric field-sensitive gel can be realised by a modulated field between several pairs of parallel copper electrode plates. These findings may provide a new principle of building soft electromechanical actuators.

Original languageEnglish
Pages (from-to)505-515
Number of pages11
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume183-185
DOIs
Publication statusPublished - Jul 15 2001

Fingerprint

Polymers
Gels
Electric fields
gels
electric fields
polymers
Particles (particulate matter)
Electromechanical actuators
Siloxanes
locomotion
siloxanes
Silicon
Copper
Oils
oils
actuators
copper
Electrodes
electrodes
silicon

Keywords

  • Bending
  • Dielectrophoresis
  • Electrorheology
  • Polymer gel
  • Smart gel

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

Bending deformation of neutral polymer gels induced by electric fields. / Fehér, J.; Filipcsei, G.; Szalma, J.; Zrínyi, M.

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 183-185, 15.07.2001, p. 505-515.

Research output: Contribution to journalArticle

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