A facile way to fabricate aluminum sheet with superhydrophobic and self-cleaning properties

doi:10.1088/1674-1056/21/12/126801

Abstract A superhydrophobic aluminum sheet is fabricated via hot water immersing process and subsequently surface modification with heptadecafluorodecyltrimethoxy-silane (HTMS). As revealed by the scan electron microscopy (SEM), X-ray diffraction (XRD), and Fourier-transform infrared spectrophotometer (FTIR) results, a rough pseudoboehmite film is formed on the aluminum sheet, and HTMS molecules are grafted on the film surface successfully. These two factors make the treated aluminum sheet present superhydrophobicity with a water contact angle larger than 160° and sliding angle less than 5°, and possess self-cleaning property. Furthermore, the flexible superhydrophobic aluminum sheet could be pasted to cylinder surface without destroying its superhydrophobicity. At the end, the effect of hot water treatment time on superhydrophobicity is investigated.

Keywords: superhydrophobic self-cleaning surface modification

Received: 16 April 2012
Revised: 07 June 2012
Accepted manuscript online:

PACS:	68.03.Cd	(Surface tension and related phenomena)
	68.08.Bc	(Wetting)
	61.46.-w	(Structure of nanoscale materials)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 78872129 and 81172082).

Corresponding Authors: Xu Xiao-Liang
E-mail: xlxu@ustc.edu.cn

Cite this article:

Yang Zhou (杨周), Wu Yi-Zhi (吴以治), Ye Yi-Fan (叶逸凡), Gong Mao-Gang (公茂刚), Xu Xiao-Liang (许小亮) A facile way to fabricate aluminum sheet with superhydrophobic and self-cleaning properties 2012 Chin. Phys. B 21 126801

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A facile way to fabricate aluminum sheet with superhydrophobic and self-cleaning properties

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