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Temperature effect on electrical treeing and partial discharge characteristics of silicone rubber-based nanocomposites

Ahmad, Mohd. Hafizi and Bashir, Nouruddeen and Buntat, Zulkafle and Arief, Yanuar Zulardiansyah and Abd. Jamil, Abdul Azim and Mohamed Piah, Mohamed Afendi and Suleiman, Abubakar Abdullkareem and Dodd, Steven and Chalashkanov, Nikola (2015) Temperature effect on electrical treeing and partial discharge characteristics of silicone rubber-based nanocomposites. Journal Of nomaterials . ISSN 1687-4110

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Official URL: http://dx.doi.org/10.1155/2015/962767

Abstract

This study investigated electrical treeing and its associated phase-resolved partial discharge (PD) activities in roomerature, vulcanized silicone rubber/organomontmorillonite nanocomposite sample materials over a range of temperatures in order to assess the effect of temperature on different filler concentrations under AC voltage. The samples were prepared with three levels of nanofiller content: 0% by weight (wt), 1% by wt, and 3% by wt. The electrical treeing and PD activities of these samples were investigated at temperatures of 20°C, 40°C, and 60°C. The results show that the characteristics of the electrical tree changed with increasing temperature. The tree inception times decreased at 20°C due to space charge dynamics, and the tree growth time increased at 40°C due to the increase in the number of cross-link network structures caused by the vulcanization process. At 60°C, more enhanced and reinforced properties of the silicone rubber-based nanocomposite samples occurred. This led to an increase in electrical tree inception time and electrical tree growth time. However, the PD characteristics, particularly the mean phase angle of occurrence of the positive and negative discharge distributions, were insensitive to variations in temperature. This reflects an enhanced stability in the nanocomposite electrical properties compared with the base polymer.

Item Type:Article
Uncontrolled Keywords:forestry, rubber, silicones, temperature, nanocomposites, electrical tree growth
Subjects:A General Works
ID Code:58891
Deposited By: Haliza Zainal
Deposited On:04 Dec 2016 12:07
Last Modified:16 Feb 2017 09:36

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