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AC/DC electrical characteristics of epoxy-multi wall carbon nanotube nanocomposites

Njuguna, Michael, Yan, Cheng, Bell, John M., & Yarlagadda, Prasad K. (2009) AC/DC electrical characteristics of epoxy-multi wall carbon nanotube nanocomposites. In Proceedings of the 6th International Conference on Precision, Meso, Micro and Nano Engineering, Coimbatore, India.

Abstract

Expoxy nanocomposites with multiwell carbon nanotubes (mwcnts) filler up to 0.3%wt were prepared by sheer mixing and good dispersion of the MWCNTS in the epoxy was successfully achieved. The electrical behaviour was characterized by measurements of the alternating current (ac) and direct current (dc) conductives at room temperature. Typical percolation behaviour was observed at a low percolation threshold of 0.055%. Frequency independent ac conductivity was observed at low frequencies but not at high frequencies. An equivalent circuit models was used to predict the impedence response in these nanocomposites.

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ID Code: 37954
Item Type: Conference Paper
Keywords: Multiwall Carbon Nanotubes, Nanocomposites, Electrical Conductivity
Subjects: Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanomaterials (100708)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2009 [please consult the authors]
Deposited On: 15 Oct 2010 09:27
Last Modified: 01 Mar 2012 00:16

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