Abstract
Controlling the dielectric properties is desirable for monitoring the efficiency of materials, which are newly applicable in electronic devices. In this work, the simple and well-known Rother-Lichtenecker equation has been modified to predict the real part of the dielectric permittivity of polymer nanocomposites. In the proposed model, the real part of dielectric permittivity is a function of interphase properties (thickness, volume fraction, and dielectric permittivity) and nanoparticle characteristics (shape, size, and volume fraction). The model results agree well with the experimental data for polymer nanocomposites containing different spherical, cylindrical, and plate-like nanoparticles. In addition, the predicted interphase properties cope very well with the experimental observations of interfacial interactions from valid literature. The high interphase properties and the small size of the nanoparticles are desired requirements of a nanocomposite with high dielectric permittivity. However, the dielectric permittivity of the nanoparticles barely affects that of the nanocomposite. The proposed model can accurately estimate the interphase properties of any available polymer nanocomposite considering the dielectric permittivity measurements.
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The authors wish to thank Tarbiat Modares University and the Iran Nanotechnology Initiative Council (INIC) for their supports.
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Sharafkhani, S., Kokabi, M. Modeling the dielectric behavior of polymer nanocomposites considering interphase properties and nanoparticle geometry. Polym. Bull. 80, 6349–6362 (2023). https://doi.org/10.1007/s00289-022-04364-2
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DOI: https://doi.org/10.1007/s00289-022-04364-2