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Investigation on the thermal properties, space charge and charge trap characteristics of silicone rubber nano–micro composites
, Vinod P., Desai B.M.A., Kornhuber S.
Published in Springer Science and Business Media Deutschland GmbH
2021
Abstract
The micro-aluminium trihydrate (ATH) and nano-alumina fillers in the silicone rubber (SR) significantly improve the electrical, thermal and mechanical properties. ATH fillers improved the resistance to the corona ageing and water droplet-initiated erosion. Scanning electron microscopy (SEM) analysis was carried out to understand degradation condition caused due to corona ageing and damage caused due to water droplet-initiated discharges. The inclusion of these fillers significantly altered the surface and bulk charge distribution characteristics of the polymer. A right shift is observed in the trap distribution characteristics. The reduced electric field threshold limit for space charge formation is observed with composites, due to increment in impurities/agglomerations with respect to increment in filler concentration. Performance of composites subjected to polarity reversal is improved on inclusion of nano-filler in addition to micro-filler. The inclusion of fillers enhanced the thermal conductivity and improved significantly thermal stability of the SR composite. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
About the journal
JournalData powered by TypesetElectrical Engineering
PublisherData powered by TypesetSpringer Science and Business Media Deutschland GmbH
ISSN09487921
Open AccessNo