Investigating effective parameters in the fabrication of superhydrophobic surfaces with modified Alumia by fatty acid in the spray pyrolysis method
Paper ID : 1074-ICNS
Hamid Daneshmand *
Supermaterials Research Laboratory (SRL), Department of Physics, University of Tehran, North Kargar Av., P.O. Box 14395-547, Tehran, Iran
Superhydrophobic surfaces were fabricated by a spray pyrolysis method. The precursor was modified Alumina powder by Stearic acid, which was dispersed in the alcohol solvent to reach a superhydrophobic surface with water contact angles up to 156° and contact angle hysteresis around 7°. The chemical bonding between the surface of Alumina and Stearic acid was confirmed by FT-IR patterns. In addition, the effect of deposition parameters such as deposition and annealing temperatures, stearic acid concentration, and deposition time on the wetting of prepared samples with modified Alumina by stearic acid was studied. The optimization of deposition parameters was studied by measuring the water contact angle and contact angle hysteresis of the sprayed film on the glass substrate. The spray pyrolysis method was applied to various substrates (glass, Stainless Steel, and copper) to achieve superhydrophobic surfaces. The method is a facile and inexpensive, which has potential applications in superhydrophobic surfaces at the large scale of demanding substrates.
Superhydrophobicity, Alumina, Fatty acid, Spray pyrolysis.
Status : Abstract Accepted (Poster Presentation)