Effect of deposition parameters on the wettability and microstructure of superhydrophobic films with hierarchical micro–nano structures

Basu, Bharathibai J and Manasa, J (2011) Effect of deposition parameters on the wettability and microstructure of superhydrophobic films with hierarchical micro–nano structures. Journal of Colloid and Interface Science, 368. pp. 655-662.

[img] PDF
JCIS_-_2011_Paper.pdf - Published Version
Restricted to Repository staff only

Download (1MB) | Request a copy

Abstract

Superhydrophobic films with hierarchical micro–nano structures were deposited on glass substrates by solution immersion method from a solution containing cobalt chloride, urea and cetyl trimethyl ammonium bromide (CTAB). Subsequently the films were hydrophobized with a low surface energy material like octadecanoic acid under ambient conditions resulting in superhydrophobic surfaces with water contact angle (WCA) of about 168_ and contact angle hysteresis of 1_. The effect of deposition parameters such as solution composition, temperature, deposition time and alkanoic acid treatment on surface morphology and wettability of the films was studied. Mechanism of formation of cobalt chloride carbonate hydroxide film is discussed. Addition of CTAB to the solution resulted in a change in the surface morphology of the deposited films with flower-like structures. The wettability of films obtained under different process conditions was correlated to surface roughness using Wenzel and Cassie models

Item Type: Article
Uncontrolled Keywords: Superhydrophobic Solution immersion Water contact angle (WCA) Sliding angle Surface morphology
Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Depositing User: Users 10 not found.
Date Deposited: 21 Sep 2012 08:26
Last Modified: 06 Aug 2015 08:45
URI: http://nal-ir.nal.res.in/id/eprint/10932

Actions (login required)

View Item View Item