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Proceedings Paper

Humidity sensing of an epoxy/MWCNT composite by electrical conductivity measurements
Author(s): Heinz C. Neitzert; Andrea Sorrentino; Luigi Vertuccio
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Paper Abstract

An epoxy/CNT composite material with a low concentration of multiwall carbon nanotubes (0.5wt%) in a diglycidilether bisphenol-A based epoxy matrix has been shown to be applicable, when maintained at a constant temperature, as humidity sensing element. An almost linear decrease of the electrical conductivity with increase of the sample humidity has been measured. The investigated samples with vaporated gold contacts exhibited a perfect ohmic behavior and an excellent long-term stability, even after prolonged immersion of the sample into distilled water.

Paper Details

Date Published: 22 May 2013
PDF: 6 pages
Proc. SPIE 8766, Nanotechnology VI, 87660D (22 May 2013); doi: 10.1117/12.2017489
Show Author Affiliations
Heinz C. Neitzert, Univ. degli Studi di Salerno (Italy)
Andrea Sorrentino, Institute for Composite and Biomedical Materials, CNR (Italy)
Luigi Vertuccio, Univ. degli Studi di Salerno (Italy)

Published in SPIE Proceedings Vol. 8766:
Nanotechnology VI
Rainer Adelung, Editor(s)

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