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Surface Engineering Volume 32, 2016 - Issue 2: Self-cleaning
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Research Paper

Superhydrophobicity via organophosphonic acid derivatised aluminium films

Y. ZhuFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming650093, China
,
Y. M. HuFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming650093, China;School of Engineering, Dali University, Dali671003, ChinaCorrespondence[email protected]
,
H.-Y. NieSurface Science Western, The University of Western Ontario, 999 Collip Circle, London, Ont. N6G 0J3, Canada
,
W. ZhouFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming650093, China
&
J. H. YiFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming650093, China
Pages 114-118 | Received 04 Feb 2015, Accepted 23 May 2015, Published online: 12 Feb 2016
 
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Abstract

Organophosphonic acid derivatisation on aluminium surfaces had been demonstrated to be effective for surface energy control. By following the surface energy control strategy, surperhydrophobic Al surfaces had been achieved via microcolumn pattern and dodecylphosphonic acid (DDPA) derivatisation. The water contact and sliding angles of the superhydrophobic Al surfaces were respectively 156 and 5°. Measurements confirmed that the linkage between DDPA and Al are mainly bidentate P–O–Al. The wetting properties as well as the mechanical durability of the superhydrophobic Al surfaces were tested and discussed.

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