Contact Angle Measurement Studies On Porous Anodic Alumina Membranes Prepared Using Different Electrolytes

P. Ramana Reddy*, Ajith K. M. and N. K. Udayashankar

Department of Physics, National Institute of Technology Karnataka, P.O. Srinivasnagar, Surathkal, Karnataka 575025, India

Adv. Mater. Lett., 2016, 7 (5), pp 398-401

DOI: 10.5185/amlett.2016.6230

Publication Date (Web): Apr 04, 2016

Abstract


This paper investigates the effect of pore widening duration on the wetting properties of nanostructured porous anodic alumina (PAA) membranes fabricated using sulphuric and oxalic acid as electrolytes by two step anodization process. XRD analysis shows that prepared PAA membranes were amorphous in nature. With increasing of pore widening durations from 0 to 120 min, the contact angle of PAA membranes varied from 21 to 78Ëš. It was noticed that PAA membranes were hydrophilic in nature in the present of water medium. In the presence of acetone medium, PAA membranes prepared with 1hr pore widening time showed super hydrophilic behaviour. 

Keywords

Anodization, contact angle, porosity, porous anodic alumina, pore widening duration.

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