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Fabrication of nano-structured super-hydrophobic film on aluminum by controllable immersing method

Fabrication of nano-structured super-hydrophobic film on aluminum by controllable immersing method
Fabrication of nano-structured super-hydrophobic film on aluminum by controllable immersing method
Aluminum alloy surface can be etched easily in acid environment, but the microstructure of alloy surface hardly meets the customers’ demand. In this work, a facile acidic-assistant surface oxidation technique has been employed to form reproducible super-hydrophobic surfaces on aluminum alloy plates. The samples immersed in three different acid solutions at ambient temperatures are studied and the results demonstrated that the aqueous mixture solution of oxalic acid and hydrochloric is easier to produce better faces and better stability. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectrometer, X-ray photoelectron spectroscopy (XPS) and water contact angle measurement are used to investigate the morphologies, microstructures, chemical compositions and hydrophobicity of the produced films on aluminum substrates. The surfaces, configured of a labyrinth structure with convexity and concavity, are in different roughness and gloss because of the different recipe acid solutions used. Better roughness of the surface can be obtained by adjusting the concentration of Clˉ and oxalate ions in acid solutions. The present research work provides a new strategy for the controllable preparation super-hydrophobic films of general materials on aluminum alloy for practical industrial applications.
Super-hydrophobic, Aluminum alloy, Sanding, Chemical etching, Contact angle
0169-4332
5933-5937
Wu, Ruomei
6abf730e-744b-4570-aa1c-03d9bac26813
Liang, Shuquan
d95edd74-a2fa-447a-afad-1529ab254aee
Pan, Anqiang
1e6f49e9-5e87-486f-9d3d-cde6dd02a549
Yuan, Zhiqing
682a0541-3c24-49e7-a247-611f3904d143
Tang, Yan
c187bb9c-4a92-4492-8ebe-21c55cd47209
Tan, Xiaoping
8c10279a-a072-439f-9eba-44772e7092dd
Guan, Dikai
d20c4acc-342a-43fa-a204-7283f0cc33bf
Yu, Ya
8ca9de5d-84ab-416b-8b07-d2fe357c8fa3
Wu, Ruomei
6abf730e-744b-4570-aa1c-03d9bac26813
Liang, Shuquan
d95edd74-a2fa-447a-afad-1529ab254aee
Pan, Anqiang
1e6f49e9-5e87-486f-9d3d-cde6dd02a549
Yuan, Zhiqing
682a0541-3c24-49e7-a247-611f3904d143
Tang, Yan
c187bb9c-4a92-4492-8ebe-21c55cd47209
Tan, Xiaoping
8c10279a-a072-439f-9eba-44772e7092dd
Guan, Dikai
d20c4acc-342a-43fa-a204-7283f0cc33bf
Yu, Ya
8ca9de5d-84ab-416b-8b07-d2fe357c8fa3

Wu, Ruomei, Liang, Shuquan, Pan, Anqiang, Yuan, Zhiqing, Tang, Yan, Tan, Xiaoping, Guan, Dikai and Yu, Ya (2012) Fabrication of nano-structured super-hydrophobic film on aluminum by controllable immersing method. Applied Surface Science, 258 (16), 5933-5937. (doi:10.1016/j.apsusc.2011.10.029).

Record type: Article

Abstract

Aluminum alloy surface can be etched easily in acid environment, but the microstructure of alloy surface hardly meets the customers’ demand. In this work, a facile acidic-assistant surface oxidation technique has been employed to form reproducible super-hydrophobic surfaces on aluminum alloy plates. The samples immersed in three different acid solutions at ambient temperatures are studied and the results demonstrated that the aqueous mixture solution of oxalic acid and hydrochloric is easier to produce better faces and better stability. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectrometer, X-ray photoelectron spectroscopy (XPS) and water contact angle measurement are used to investigate the morphologies, microstructures, chemical compositions and hydrophobicity of the produced films on aluminum substrates. The surfaces, configured of a labyrinth structure with convexity and concavity, are in different roughness and gloss because of the different recipe acid solutions used. Better roughness of the surface can be obtained by adjusting the concentration of Clˉ and oxalate ions in acid solutions. The present research work provides a new strategy for the controllable preparation super-hydrophobic films of general materials on aluminum alloy for practical industrial applications.

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More information

Published date: 1 June 2012
Keywords: Super-hydrophobic, Aluminum alloy, Sanding, Chemical etching, Contact angle

Identifiers

Local EPrints ID: 475003
URI: http://eprints.soton.ac.uk/id/eprint/475003
ISSN: 0169-4332
PURE UUID: e6ac20ab-f723-40bf-b515-e1b09bfa8280
ORCID for Dikai Guan: ORCID iD orcid.org/0000-0002-3953-2878

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Date deposited: 08 Mar 2023 17:54
Last modified: 17 Mar 2024 04:17

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Contributors

Author: Ruomei Wu
Author: Shuquan Liang
Author: Anqiang Pan
Author: Zhiqing Yuan
Author: Yan Tang
Author: Xiaoping Tan
Author: Dikai Guan ORCID iD
Author: Ya Yu

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