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Journal of Nanomaterials
Volume 2017, Article ID 6843403, 8 pages
Research Article

Effect of Saline Solution on the Electrical Response of Single Wall Carbon Nanotubes-Epoxy Nanocomposites

1Department of Mechanical and Material Engineering, Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE
2Department of Electrical Engineering and Computer Science, Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE

Correspondence should be addressed to Hammad Younes; moc.oohay@391ysah

Received 9 November 2016; Revised 26 February 2017; Accepted 1 March 2017; Published 4 April 2017

Academic Editor: Evan K. Wujcik

Copyright © 2017 Hammad Younes 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.


The effects of saline solution on the electrical resistance of single wall carbon nanotubes-epoxy nanocomposites have been investigated experimentally. Ultrasonic assisted fabricated 1.0% and 0.5 W/W% SWCNTs epoxy nanocomposites are integrated into a Kelvin structure by smear cast the nanocomposites on a glass wafer. Four metal pads are deposited on the nanocomposites using the beam evaporator and wires are tethered using soldering. The effect of saline solution on the electrical resistance of the nanocomposites is studied by adding drop of saline solution to the surface of the fabricated nanocomposites and measuring electrical resistance. Moreover, the nanocomposites are soaked completely into 3 wt.% saline solution and real-time measurement of the electrical resistance is conducted. It is found that a drop of saline solution on the surface of the nanocomposites film increases the resistance by 50%. Furthermore, the real-time measurement reveals a 40% increase in the resistance of the nanocomposites film. More importantly, the nanocomposites are successfully reset by soaking in DI water for four hours. This study may open the door for using SWCNTs epoxy nanocomposites as scale sensors in oil and gas industry.