Electro-mechanical properties of electron irradiated P(VDF-TrFE) copolymers under different mechanical stresses

Z. Y. Cheng, S. J. Gross, V. Bharti, T. B. Xu, T. Mai, Qiming Zhang

    Research output: Contribution to journalConference article

    Abstract

    The electro-mechanical properties of high energy electron irradiated poly(vinylidene fluoride-trifluoroethylene) (P(VF-TrFE)) copolymers under different mechanical stress conditions are reported. In stress free condition, the electric field induced longitudinal and transverse strains of the irradiated P(VDF-TrFE) copolymers films at room temperature (RT) can reach about 5% and more than 3% respectively. The longitudinal strain response of the material under hydrostatic a pressure up to 83 atmospheses was studied at RT. The transverse strain response of the material at RT was studied under uniaxial tensile stress. It was found that the material has a high load capability and for stretched films along the stretching direction the induced strain remains high, even at about 45 MPa. The temperature dependence of the strain response is also characterized. Both the temperature and stress dependence of the strain response indicate that the electric field induced strain response originates from the electric field induced local phase transition.

    Original languageEnglish (US)
    Pages (from-to)71-76
    Number of pages6
    JournalMaterials Research Society Symposium - Proceedings
    Volume600
    StatePublished - Dec 3 2000
    EventThe 1999 MRS Fall Meeting- Symposium Electroactive Polymers - Boston, MA, USA
    Duration: Dec 29 1999 → …

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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