Electrical Treeing in Polymer Nanocomposites
-
Sridhar Alapati
This paper presents a study of electrical treeing phenomena in polymer nanocomposites. The polymer nanocomposite studied consists of epoxy resin as base polymer and silica as nano filler. Treeing experiments were performed at a constant ac voltage of 20kV, 50Hz on epoxy samples without any fillers as well as epoxy silica nano composites with 1% by weight of nano silica. Times for tree inception as well as tree growth patterns were studied. The results show that addition of small amount (1% by weight) of nano silica particles in epoxy resin can improve the treeing resistance by delaying the tree inception time as well as the time required by the tree to reach the opposite electrode. Treeing phenomena has been analyzed and interpreted by a physical model to explain the behavior in nanocomposites. The nature of bonding at the interface between epoxy and nano filler is characterized by using FTIR spectrometry. It has been shown that the type of bonding at the interface has an influence on the electrical tree growth pattern.
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
Articles in the same Issue
- Article
- Integrated Hardware System for Power Quality Disturbance Classification
- An Electroscope System Based on Electric Field Measurement Method for UHV Transmission Lines
- Robust Frequency Control of Wind-Diesel Hybrid Power System Using Superconducting Magnetic Energy Storage
- Compact Covered Distribution Lines Supported by Triangle Spacers: Configuration and Benefits
- Compact Covered Distribution Lines Supported by Triangle Spacers: Spacer Design
- Empirical Research on Efficiency of the Electricity Futures Market
- Electrical Treeing in Polymer Nanocomposites
Articles in the same Issue
- Article
- Integrated Hardware System for Power Quality Disturbance Classification
- An Electroscope System Based on Electric Field Measurement Method for UHV Transmission Lines
- Robust Frequency Control of Wind-Diesel Hybrid Power System Using Superconducting Magnetic Energy Storage
- Compact Covered Distribution Lines Supported by Triangle Spacers: Configuration and Benefits
- Compact Covered Distribution Lines Supported by Triangle Spacers: Spacer Design
- Empirical Research on Efficiency of the Electricity Futures Market
- Electrical Treeing in Polymer Nanocomposites
