Bhat, SD and Manokaran, A and Sahu, AK and Pitchumani, S and Sridhar, P and Shukla, AK (2009) Novel Self-Supported Natural and Synthetic Polymer Membranes for Air Humidification. In: Journal of Applied Polymer Science, 113 (4). pp. 2605-2612.
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Novel self-supported natural and synthetic polymer membranes of chitosan-hydroxy ethyl Cellulose-montmorillonite (CS-HEC-MMT) and polyvinyl alcohol (PVA)-polystyrene sulfonic acid (PSSA) are prepared by solution casting method followed by crosslinking. These membranes are employed for air humidification at varying temperatures between 30 degrees C and 70 degrees C and their performances are compared with commercial Nafion membranes. High hater fluxes with desired humidified-air output have been achieved for CS-HEC-MMT and PVA-PSSA hybrid membranes at air-flow rates of 1-10 slpm. Variation in the air/water mixing ratio, dew point, and relative humidity that ultimately results in desired water flux With respect to air-flow rates are also quantified for all the membranes. Water flux values for CS-HEC-MMT are less than those for Nafion (R) and PVA-PSSA membranes, but the operational Stability of CS-HEC-MMT membrane is higher than PVA-PSSA and comparable with Nafion (R) both of which can operate up to 70 degrees C at repetitive cycles of humidification.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to John Wiley.|
|Keywords:||water flux;hybrid membrane;sorption;PEFC|
|Department/Centre:||Division of Chemical Sciences > Solid State & Structural Chemistry Unit|
|Date Deposited:||04 Jan 2010 06:03|
|Last Modified:||19 Sep 2010 05:36|
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