Affordable Access

deepdyve-link
Publisher Website

Plasticized relaxor ferroelectric terpolymer: Toward giant electrostriction, high mechanical energy and low electric field actuators

Authors
  • Capsal, Jean-Fabien
  • Galineau, Jérémy
  • Lallart, Mickaël
  • Cottinet, Pierre-Jean
  • Guyomar, Daniel1
  • 1 Laboratoire de Génie Electrique et Ferroélectricité (LGEF), INSA Lyon
Type
Published Article
Journal
Sensors and Actuators A Physical
Publisher
Elsevier
Publication Date
Jan 01, 2013
Accepted Date
Dec 04, 2013
Volume
207
Pages
25–31
Identifiers
DOI: 10.1117/12.776641
Source
Elsevier
Keywords
License
Unknown

Abstract

Enhancing the electrostrictive strain under low electric field of a dielectric electroactive polymer (EAP) is essential in soft actuators applications. Conventional electrostrictive polymers suffer of the high electric fields usually required to reach sufficient strain. Here we report a new approach that greatly enhanced the strain under electric field and the mechanical energy density of fluorinated terpolymer EAP. A new all organic composite based on poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) terpolymer (P(VDF-TrFE-CFE)) doped with bis(2-ethylhexyl) phthalate (DEHP) was synthesized. DEHP molecule acts as a plasticizer that leads to large dipolar interfacial effects. This chemical modification allows a 28-fold increase of the electrostrictive strain and a 215-fold increase of the mechanical energy density. As a consequence, this new approach permits the uses of the exceptional properties of the fluorinated terpolymer for an electric field nearly 5 times lower and represents a simple and effective solution to this technological barrier.

Report this publication

Statistics

Seen <100 times