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Effect of nanofiller calcination on breakdown performance of zirconia based polyethylene nanocomposites

Rahim, N. H. and Lau, K. Y. and Kamarudin, S. N. H. and Muhamad, N. H. and Mohamad, N. and Rahman, W. A. W. A. (2019) Effect of nanofiller calcination on breakdown performance of zirconia based polyethylene nanocomposites. In: 7th IEEE International Conference on Power and Energy, PECon 2018, 3-4 Dec 2018, Berjaya Times Square Hotel, Kuala Lumpur.



Dielectrics are widely used in electrical and high voltage systems. Studies on new dielectric materials, especially polymer nanocomposites, have been extensively carried out in order to investigate the potential improvements of the materials in high voltage insulation. Significantly, the interface between the base material (polymer) and the nanofiller is a vital factor that influences the dielectric performance of the materials. This paper reports on an investigation into the AC and DC breakdown performance of unfilled and polyethylene nanocomposites containing zirconium oxide (ZrO2) nanofillers at different amounts; 1 wt%, 4 wt%, and 8wt%. The chemical structures of the materials were characterized using Fourier transform infrared (FTIR) spectroscopy. Dielectric spectroscopy was used to measure the dielectric permittivity of the samples. Breakdown testing showed that there were no significant changes on the AC breakdown behaviors of nanocomposites containing both uncalcined and calcined nanofillers. Meanwhile, substantial changes were observed on the materials' DC breakdown strength, even by introducing a small amount of nanofiller (1 wt%); the DC breakdown strength of the nanocomposites enhanced for those containing calcined nanofillers compared to uncalcined nanofillers. The observation is associated with the calcination process of the nanofillers.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:nanocomposites, polyethylene, zirconia
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:88594
Deposited By: Narimah Nawil
Deposited On:15 Dec 2020 18:31
Last Modified:15 Dec 2020 18:31

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