Durable and Regenerable Superhydrophobic Coatings for Aluminium Surfaces with Excellent Self-Cleaning and Anti-Fogging Properties

Abstract

In this work, by employing chemical etching technique with hydrochloric acid, followed by passivation with lauric acid, superhydrophobic aluminum surfaces were synthesized. The surface morphology analysis reveals the presence of rough microstructures on coated aluminium surface and contact angle increases with etching time as enhancement of surface roughness. Superhydrophobicity with water static contact angle of 172 ± 5° and sliding angle of 4 ± 0.5° is achieved. Coating exhibits the excellent self-cleaning and anti-fogging properties. Coating shows the excellent mechanical, chemical, UV, and thermal stability. Additionally coating shows the excellent regeneration capability. This approach can be applied to any size and shape of aluminium surface and hence has great industrial applications.

Department(s)

Materials Science and Engineering

Comments

The authors are indebted to the Science & Engineering Research Board, Department of Science and Technology, Government of India (Grant No. YSS/2015/000036 ) for financial support.

Keywords and Phrases

Anti-fogging; Chemical etching; Self-cleaning; Superhydrophobic; Water repellent

International Standard Serial Number (ISSN)

0301-679X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2018 Elsevier Lt, All rights reserved.

Publication Date

01 Mar 2018

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