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Improving the Hydrophobicity of ZnO by PTFE Incorporation
Joint Authors
Basu, Bharathi Bai J.
Rajam, K. S.
Srivastava, Meenu
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-06-26
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Engineering Sciences and Information Technology
Chemistry
Abstract EN
The objective of the present study is to obtain a zinc oxide- (ZnO-) based superhydrophobic surface in a simple and cost-effective manner.
Chemical immersion deposition being simple and economical has been adopted to develop modified ZnO coating on glass substrate.
Several modifications of ZnO like treatment with alkanoic acid (stearic acid) and fluoroalkylsilane to tune the surface wettability (hydrophobicity) were attempted.
The effect of thermal treatment on the hydrophobic performance was also studied.
It was observed that thermal treatment at 70°C for 16 hrs followed by immersion in stearic acid resulted in high water contact angle (WCA), that is, a superhydrophobic surface.
Thus, a modified ZnO superhydrophobic surface involves the consumption of large amount of electrical energy and time.
Hence, the alternate involved the incorporation of low surface energy fluoropolymer polytetrafluoroethylene (PTFE) in the ZnO coating.
The immersion deposited ZnO-PTFE composite coating on modification with either stearic acid or fluoroalkylsilane resulted in a better superhydrophobic surface.
The coatings were characterized using Scanning Electron Microscope (SEM) for the surface morphology.
It was found that microstructure of the coating was influenced by the additives employed.
A flower-like morphology comprising of needle-like structure arranged in a radial manner was exhibited by the superhydrophobic coating.
American Psychological Association (APA)
Srivastava, Meenu& Basu, Bharathi Bai J.& Rajam, K. S.. 2011. Improving the Hydrophobicity of ZnO by PTFE Incorporation. Journal of Nanotechnology،Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-468562
Modern Language Association (MLA)
Srivastava, Meenu…[et al.]. Improving the Hydrophobicity of ZnO by PTFE Incorporation. Journal of Nanotechnology No. 2011 (2011), pp.1-6.
https://search.emarefa.net/detail/BIM-468562
American Medical Association (AMA)
Srivastava, Meenu& Basu, Bharathi Bai J.& Rajam, K. S.. Improving the Hydrophobicity of ZnO by PTFE Incorporation. Journal of Nanotechnology. 2011. Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-468562
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-468562