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Publications in Scientific Journals:

J. Hafner, J. Schrattenholzer, M. Teuschel, M. Schneider, D. Platz, U. Schmid:
"Modelling the Distribution of BaTiO3 Nanoparticles in a P(VDF70-TrFE30) Polymer Matrix for Permittivity Calculation";
Polymer, 180 (2019), 1 - 7.



English abstract:
Nanocomposites are an exciting field for both research and application related activities as they promise to push
the existing limits of many standard materials. For instance, the admixture of inorganic nanoparticles into
polymers may lead to materials with novel dielectric properties. However, nanocomposites are highly complex
material systems, making the prediction of basic material parameters, such as the permittivity, challenging. In
this study, we present a novel method that considers explicitly the statistical distribution of the nanoparticles in
the organic matrix, which allows to calculate the permittivity as a function of the nanoparticle volume fraction.
We apply this method for the study of spherical barium titanate particles in a poly(vinylidene fluoride70-trifluoethyline30)
polymer matrix and show that a transition from randomly distributed nanocomposites to colloidal
crystals occurs, which has a tremendous impact on the permittivity of the composite.


"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1016/j.polymer.2019.121682


Created from the Publication Database of the Vienna University of Technology.