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Author Tsekmes, I.A. ♦ Kochetov, R. ♦ Morshuis, P.H.F. ♦ Smit, J.J. ♦ Andritsch, T.
Sponsorship IEEE Dielectr. Electr. Insul. Soc.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2014
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics
Subject Keyword Nanocomposites ♦ Polymers ♦ Permittivity ♦ Dielectrics ♦ Aluminum oxide ♦ Solid modeling ♦ Data models ♦ water uptake ♦ epoxy nanocomposites ♦ dielectric response ♦ models ♦ relative permittivity ♦ re-structure of matrix
Abstract The dielectric response of epoxy based nanocomposites is simulated by developing 3D models in Matlab. Two different sets of nanocomposites are simulated. In the first one, aluminum oxide is used as a filler with an average particle size of 25 nm. The second set consists of epoxy filled with hexagonal boron nitride nanoparticles with an average size of 70 nm. Both sets of nanocomposites exhibit the same trend. At a relatively low filler concentration, the relative permittivity of the nanocomposites is lower compared to both the matrix and filler. However, as filler content increases, the relative permittivity increases as well. At 5 and 10 vol.% filler concentration, epoxy - boron nitride nanocomposites exhibit a relative permittivity which is higher than that of the filler and matrix. Re-organization of the polymer matrix due to the presence of fillers and water uptake are taken into account in the developed models. The model results fit well with the experimental data when two layers are considered around the particles. The first layer is a thin layer with a small thickness and high relative permittivity while the second one extends several nanometers in the polymer matrix. The thickness of the outer layer is dynamic and depends on the filler concentration. The relative permittivity of the outer layer is assumed to be lower than that of the base material.
Description Author affiliation: Tony Davies High Voltage Lab., Univ. of Southampton, Southampton, UK (Andritsch, T.) || Intell. Electr. Power Grids, Delft Univ. of Technol., Delft, Netherlands (Tsekmes, I.A.; Kochetov, R.; Morshuis, P.H.F.; Smit, J.J.)
ISBN 9781479927876
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2014-06-08
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
e-ISBN 9781479927890
Size (in Bytes) 436.84 kB
Page Count 4
Starting Page 47
Ending Page 50

Source: IEEE Xplore Digital Library