Impedance Characteristics of Electrospun Nylon-6/TiO₂ Nanocomposite for Humidity Sensor

Abstract:

Resistive relative humidity (RH) sensors were fabricated by nano composites of nylon-6 and titanium dioxide nanopowders. The results indicated that these sensors can be fabricated as a reliable, low cost and fast response instruments. Different percentages of nylon-6 and TiO2 were studied and average diameters of the resultant nanofibers were found the 80 to 120 nm. The nano composite of nylon-6/TiO2 nanofibers was electrospun on the interdigital gold electrode on the glass substrate. It was found that the impedance of the mat ranged from 107 Ω to 102 Ω while the relative humidity was increased from 11% RH and 97.3% at room temperature. Transition electron microscopy (TEM) and scanning electron microscopy (SEM) were used to study the morphology of the nano composite.

• Periodical: Key Engineering Materials (Volumes 471-472)
• Pages: 542-547
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.471-472.542
• Online since: February 2011
• Authors: Alireza Hosseinmardi, M. Keyanpour-Rad, F. Alikhani Hesari
• Keywords: Electro-Spinning, Humidity Sensor, Interdigital Electrode, Nanocomposite, Nanofiber

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