Investigating the Effect of Transition Metal-Oxide Nanofiller on the Dielectric Response of Polypropylene

DOI

10.2991/978-94-6463-970-4_32How to use a DOI?

Keywords

Brabender mixer; dielectric breakdown; nanofillers; polypropylene; transition metal-oxide

Abstract

The unique combination of properties exhibited by polypropylene has attracted significant research attention in new dielectric materials for electrical energy applications. Several research works reported on polypropylene as a high-voltage material for insulation. However, the literature has reported deteriorated dielectric performance of the materials to be associated with limited dielectric breakdown strength and space charge accumulation. This study aims to investigate the dielectric breakdown strength of polypropylene/Transition Metal-Oxide nanocomposites and compare the resulting performance with the base material. To evaluate these effects, experimental work involved melt blending polypropylene with varying filling concentrations (0 – 5 wt.%) of selected Transition metal oxides using a Brabender mixer. Based on the result of the breakdown test, a two-parameter Weibull statistical distribution was deployed to analyse the data. The result found that polypropylene/Transition metal-oxide nanocomposites with obvious filling concentration significantly enhanced the dielectric performance. The breakdown strength improved from 157kV/mm for virgin PP to 159kV/m at 1 wt.%, attributed to enhanced interfacial polarization and charge trapping effects introduced by the nanofillers, which suppress charge transport and delay breakdown initiation. These findings demonstrate that incorporating transition metal oxide filler concentrations can substantially improve the dielectric reliability of polypropylene-based insulation materials for advanced high-voltage energy systems.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Haruna Ibrahim
AU  - Aizat Bin Azmi
AU  - Isah Yakubu Jatto
AU  - Enejoh Timothy Omejeh
AU  - O. Momoh Iliyasu
PY  - 2025
DA  - 2025/12/31
TI  - Investigating the Effect of Transition Metal-Oxide Nanofiller on the Dielectric Response of Polypropylene
BT  - Proceedings of the International Conference on Engineering, Science, and Urban Sustainability (ICESUS 2025)
PB  - Atlantis Press
SP  - 508
EP  - 517
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-970-4_32
DO  - 10.2991/978-94-6463-970-4_32
ID  - Ibrahim2025
ER  -