Simulation of nanodielectrics: nanoparticle and interphase effects on electric field distributions

Nanodielectrics have been regarded as a class of material system that can provide significantly improved chemical, mechanical and dielectric properties over conventional microcomposites. This is due to the presence of a high volume fraction of the interphase between nanoparticles and polymers. Howev...

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Bibliographic Details
Published in:	IET Nanodielectrics Vol. 3; no. 1; pp. 1 - 9
Main Authors:	Hashim, Zuridah, Lau, Kwan Yiew, Tan, Chee Wei, Ching, Kuan Yong
Format:	Journal Article
Language:	English
Published:	Beijing The Institution of Engineering and Technology 01-03-2020 John Wiley & Sons, Inc Wiley
Subjects:	chemical properties conventional microcomposites dielectric behaviours dielectric materials Dielectric properties electric field distributions electric field intensity electric field variations Electric fields filled polymers finite element analysis Finite element method Finite Element Method Magnetics 4.2 interparticle distances interphase configurations interphase effects interphase permittivities interphase thicknesses Magnetic properties material system mechanical properties Nanocomposites nanodielectric model nanoparticle distributions nanoparticle sizes Nanoparticles Nanotechnology particle size permittivity Polyethylene Polymers Research Article Simulation Thickness particle size interparticle distances interphase thicknesses chemical properties dielectric materials nanocomposites electric fields nanoparticles electric field distributions electric field variations interphase permittivities polymers Finite Element Method Magnetics 4.2 dielectric behaviours permittivity dielectric properties finite element analysis mechanical properties conventional microcomposites electric field intensity nanodielectric model filled polymers interphase effects interphase configurations nanoparticle distributions material system nanoparticle sizes
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Summary:	Nanodielectrics have been regarded as a class of material system that can provide significantly improved chemical, mechanical and dielectric properties over conventional microcomposites. This is due to the presence of a high volume fraction of the interphase between nanoparticles and polymers. However, precise effects of nanodielectrics are not well understood, leading to difficulties in interpreting the dielectric behaviours of nanodielectrics. In the current work, effects of nanoparticle distributions, interparticle distances, nanoparticle sizes, interphase permittivities and interphase thicknesses on the possible electric field variations within a nanodielectric model have been simulated using Finite Element Method Magnetics (FEMM) 4.2. The results demonstrate that different nanoparticle and interphase configurations lead to different effects on the electric field intensity within the nanodielectric model. Mechanisms leading to changes in dielectric properties based on the observed electric field variations are discussed.
ISSN:	2514-3255 2514-3255
DOI:	10.1049/iet-nde.2019.0032