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2011
Conference Paper
Titel
Peculiarities of the dielectric and dynamic-mechanical response in poly(vinylidene fluoride - Hexafluoropropylene)
Abstract
Uniaxial stretching of P(VDF-HFP) films with optimized stretching parameters does not significantly increase the elastic modulus at room temperature, but induces an enhanced electric polarization. This may explain their outstanding electro-mechanical properties. The increase of polarization stems from the formation of a ferroelectric phase, an additional polarization in the amorphous phase and from melting of secondary crystallites formed in the amorphous phase by annealing or storage.