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Space Charge Dynamics in Polyimide Based Nanocomposites

Zha, Junwei, Dang, Zhimin and Chen, George (2010) Space Charge Dynamics in Polyimide Based Nanocomposites At IEEE International Symposium on Electrical Insulation, United States. 06 - 09 Jun 2010.

Record type: Conference or Workshop Item (Other)


Polymer nanocomposites have attracted wide interest as a method of enhancing polymer properties and extending their applications. In polymer nanocomposites, chemically dissimilar components are combined at the nanometer scale, and stronger interactions between the polymer and nanoparticles produce markedly improved materials with better electrical, mechanical, thermal, and rheological performances than the conventional filled polymer composites. In recent years, polymer nanocomposites have been extensively studied in optical, thermal and mechanical properties, but there has been relatively little research into dielectric properties. Polyimide is an excellent dielectric material that has a wide range of applications at elevated temperatures. In this paper, space charge in polyimide based nanocomposites has been measured under high dc electric fields using the pulsed electroacoustic technique. Different types and levels of nanoparticles have been studied to understand the interaction between nanoparticles and polyimide matrix. Charge dynamics during “volts on” and “volts off” have shown that the addition of nanoparticles has a significant influence on charge formation and decay processes.

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Published date: 6 June 2010
Additional Information: Event Dates: 6 - 9 June 2010
Venue - Dates: IEEE International Symposium on Electrical Insulation, United States, 2010-06-06 - 2010-06-09
Organisations: Electronics & Computer Science, EEE


Local EPrints ID: 271263
ISBN: 978-1-4244-6300-8
PURE UUID: 974d66ed-e516-4e89-803b-2d90b2d846a1

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Date deposited: 14 Jun 2010 16:22
Last modified: 18 Jul 2017 06:45

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Author: Junwei Zha
Author: Zhimin Dang
Author: George Chen

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