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Journal of Nanomaterials
Volume 2012 (2012), Article ID 219073, 11 pages
http://dx.doi.org/10.1155/2012/219073
Research Article

Electrical and Thermal Behavior of Copper-Epoxy Nanocomposites Prepared via Aqueous to Organic Phase Transfer Technique

1Nanoscience Research Laboratory, School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
2Intel Technology (M) Sdn Bhd, Bayan Lepas FTZ, Phase III, 11900 Penang, Malaysia
3BCI Chemical Corporation Sdn Bhd, Lot 7, Jalan BS 7/22, Taman Perindustrian Bukit Serdang, Seksyen 7, 43300 Sri Kembangan, Malaysia

Received 31 October 2011; Accepted 19 December 2011

Academic Editor: Sevan P. Davtyan

Copyright © 2012 N. H. Mohd Hirmizi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The preparation, electrical, and thermal behaviors of copper-epoxy nanocomposites are described. Cetyltrimethylammonium bromide- (CTAB-) stabilized copper (Cu) particles were synthesized via phase transfer technique. Isopropanol (IPA), sodium borohydride (NaBH4), and toluene solution of diglycidyl ether of bisphenol A (DGEBA) were used as transferring, reducing agent, and the organic phase, respectively. The UV-Vis absorbance spectra of all the sols prepared indicate that the presence of Cu particles with the particles transfer efficiency is ≥97%. The amount, size, and size distribution of particles in the organosol were dependent on the content of organic solute in the organosol. The composites were obtained upon drying the organosols and these were then subjected to further studies on the curing, thermal, and electrical characteristic. The presence of Cu fillers does not significantly affect the completeness of the composite curing process and only slightly reduce the thermal stability of the composites that is >300°C. The highest conductivity value of the composites obtained is 3.06×102 S cm1.