Facile Approach to Develop Anti-Corrosive Superhydrophobic Aluminium with High Mechanical, Chemical and Thermal Durability

Abstract

Durable, superhydrophobic and self-cleaning aluminium surfaces with high corrosion resistance are desirable in many industrial applications. In this study, a facile approach is used to produce aluminium surfaces with superhydrophobicity with a low tilt angle by creating desired roughness structure by immersing in NaOH solution followed by lowering the surface energy by immersing in hexadecyltrimethoxysilane solution. The coated samples show water contact angle of 164 ± 7° and tilt angle of 5 ± 1°. Droplet dynamics of the coated surfaces was investigated. Surfaces exhibited self-cleaning properties. In addition, mechanical, chemical and thermal stability tests were performed. Electrochemical tests of coated surfaces demonstrated anti-corrosion properties with low corrosion current density and high corrosion potential.

Department(s)

Materials Science and Engineering

Comments

This article is part of the theme issue "Bioinspired materials and surfaces for green science and technology"

Keywords and Phrases

Anti-corrosion; Anti-wetting; Chemically stable; Mechanically durable; Self-cleaning; Superhydrophobic

International Standard Serial Number (ISSN)

1364-503X; 1471-2962

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2018 The Author(s), All rights reserved.

Publication Date

01 Dec 2018

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