Poly(vinylidene fluoride-trifluoroethylene) Based High Performance Electroactive Polymers

Feng Xia, Hengfeng Li, Cheng Huang, M. Y.M. Huang, H. Xu, Francois Bauer, Z. Y. Cheng, Q. M. Zhang

    Research output: Contribution to journalConference article

    14 Scopus citations

    Abstract

    This paper reports two classes of electroactive polymers developed recently which exhibit very high strain and elastic energy density. In the first class of the electroactive polymer, i.e., the defects modified poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) polymers, an electrostrictive strain of more than 7% and an elastic energy density above 1 J/cm3 can be induced under a field of 150 MV/m. The large electrostrictive strain in this class of polymers originates from the local molecular conformation change between the trans-gauche bonds and all trans bonds, which accompanies the field induced transformation from the non-polar phase to the polar phase. The second class of the polymer is an all organic composite, which shows a very high dielectric constant (>400) and high strain induced with a low applied field (2% strain under 13 MV/m). The strain is proportional to the applied field and the composite has an elastic modulus near 1 GPa.

    Original languageEnglish (US)
    Pages (from-to)133-142
    Number of pages10
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Volume5051
    DOIs
    StatePublished - Nov 27 2003
    EventPROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Smart Structures and Materials 2003 Electroactive Polymer Actuators and Devices (EAPAD) - San Diego, CA, United States
    Duration: Mar 3 2003Mar 6 2003

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

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