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Title:
Preparation and Characterization of an Ultrahydrophobic Surface Based on a Stearic Acid Self-Assembled Monolayer Over Polyethyleneimine Thin Films
Author: Ren SL; Yang SR; Zhao YP(赵亚溥); Yu TX; Xiao XD
Source: Surface Science
Issued Date: 2003
Volume: 546, Issue:2-3, Pages:64-74
Abstract: A novel ultrahydrophobic ultrathin film was prepared by stearic acid (STA) chemically adsorbed onto the polyethyleneimine (PEI) coated aluminum wafer. The formation and the structure of the films have been characterized by means of water contact angle measurement, ellipsometry, Fourier transformation infrared spectroscopy, and X-ray photoelectron spectroscopy. The static contact angle for water on the surface of this ultrathin organic film was measured to be as high as $166^\circ$. Apart from the hydrophobic STA monolayer, the needle-like surface nanostructures with enough roughness was found to be essential for the generation of ultrahydrophobicity. We suggest that a composite interface formed by the needle-like surface nanostructures, water droplet, and air trapped in the crevices is responsible for the superior water-repellent property.
Language: 英语
Indexed Type: SCI
Corresponding Author: Xiao, XD (reprint author), Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China.
DOI: 10.1016/j.susc.2003.09.018
DOC Type: Article
WOS Subject: Chemistry, Physical ; Physics, Condensed Matter
WOS Subject Extended: Chemistry ; Physics
WOS Keyword Plus: AL2O3 COATING FILMS ; SOL-GEL METHOD ; HIGH TRANSPARENCY ; CONTACT ANGLES ; ALUMINUM ; COMPLEXES ; SYSTEMS ; SPECTRA ; MEMS
WOS ID: WOS:000186739000009
ISSN: 0039-6028
Subject: 力学
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/15605
Appears in Collections:力学所知识产出(1956-2008)_期刊论文

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Recommended Citation:
Ren SL,Yang SR,Zhao YP,et al. Preparation and Characterization of an Ultrahydrophobic Surface Based on a Stearic Acid Self-Assembled Monolayer Over Polyethyleneimine Thin Films[J]. Surface Science,2003-01-01,546(2-3):64-74.
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