International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


Downloads: 120 | Views: 191 | Weekly Hits: ⮙1 | Monthly Hits: ⮙1

Research Paper | Chemical Sciences | India | Volume 7 Issue 11, November 2018


Carboxymethyl Cellulose Grafted Acrylic Acid Hydrogel Membrane as Humidity Sensor

Dr. Neetha John


Abstract: Humidity sensors are widely used to characterize electrical components as the working will be greatly affected by the presence of humidity. A study is conducted here with carboxymethyl cellulose grafted with acrylic acid based hydrogel membranes and its function as an absorbing layer in a resistive-based humidity sensor. The hydrogel membrane is prepared by coating the electrodes with 2 wt % CMC solution (in 3: 1 water: ethanol mixture). CMC g- AA membrane is cross-linked with citric acid. The measurement results show that the CMC g- AA hydrogel can function as humidity sensor at high humidity range. The sensor was tested by measuring the resistance of the CMC hydrogel membrane at various relative humidity. Sensitivity and reliability of humidity sensors depend on the design of electrical components and the characteristics of material used as absorbing layer


Keywords: Humidity sensor, hydrogel, membranes


Edition: Volume 7 Issue 11, November 2018,


Pages: 1898 - 1901


How to Download this Article?

Type Your Valid Email Address below to Receive the Article PDF Link


Verification Code will appear in 2 Seconds ... Wait

Top