Micrometrically scaled textured metallic hydrophobic interfaces validate the Cassie-Baxter wetting hypothesis

被引：66

作者：

Bormashenko, Edward ^{[1
]}

Bormashenko, Yelena ^{[1
]}

Whyman, Gene ^{[1
]}

Pogreb, Roman ^{[1
]}

Stanevsky, Oleg ^{[1
]}

机构：

[1] Coll Judea & Samaria, Inst Res, IL-44837 Ariel, Israel

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2006年 / 302卷 / 01期

关键词：

wetting of metals; polymer pattern; textured surfaces; Cassie-Baxter model;

D O I：

10.1016/j.jcis.2006.06.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

The possibility of forming a hydrophobic metallic interface is shown when it is micrometrically textured. On such surface obtained by gold coating the polymer honeycomb template, the apparent contact angle of water was observed to be close to or greater than 90 degrees. The metal hydrophobicity is explained by trapping air inside pores of pattern according to the Cassie-Baxter wetting model. The agreement between calculated and observed values of the apparent contact angle justifies the applicability of this model in the present case. Formation of the acute local (Young) angle on the pore surface is provided by its concave form. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：308 / 311

页数：4

共 23 条

[1]

Wetting of regularly structured gold surfaces [J].

Abdelsalam, ME ;

Bartlett, PN ;

Kelf, T ;

Baumberg, J .

LANGMUIR, 2005, 21 (05) :1753-1757

[2]

Wetting of textured surfaces [J].

Bico, J ;

Thiele, U ;

Quéré, D .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2002, 206 (1-3) :41-46

[3]

Formation of honeycomb patterns in evaporated polymer solutions: Influence of the molecular weight [J].

Bormashenko, E ;

Pogreb, R ;

Stanevsky, O ;

Bormashenko, Y ;

Gendelman, O .

MATERIALS LETTERS, 2005, 59 (28) :3553-3557

[4]

Mesoscopic and submicroscopic patterning in thin polymer films: Impact of the solvent [J].

Bormashenko, E ;

Pogreb, R ;

Stanevsky, O ;

Bormashenko, Y ;

Tamir, S ;

Cohen, R ;

Nunberg, M ;

Gaisin, VZ ;

Gorelik, M ;

Gendelman, OV .

MATERIALS LETTERS, 2005, 59 (19-20) :2461-2464

[5]

Self-assembled honeycomb polycarbonate films deposited on polymer piezoelectric substrates and their applications [J].

Bormashenko, E ;

Pogreb, R ;

Stanevsky, O ;

Bormashenko, Y ;

Socol, Y ;

Gendelman, O .

POLYMERS FOR ADVANCED TECHNOLOGIES, 2005, 16 (04) :299-304

[6]

BORMASHENKO E, IN PRESS COLLOIDS A

[7]

Rose-like superhydrophobic surface based on conducting dmit salt [J].

Cui, GL ;

Xu, W ;

Zhou, XH ;

Xiao, XW ;

Jiang, L ;

Zhu, DB .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2006, 272 (1-2) :63-67

[8]

Gennes P., 2003, CAPILLARITY WETTING, DOI DOI 10.1007/978-0-387-21656-0

[9]

Fabrication of a bionic superhydrophobicw metal surface by sulfur-induced morphological development [J].

Han, JT ;

Jang, Y ;

Lee, DY ;

Park, JH ;

Song, SH ;

Ban, DY ;

Cho, K .

JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (30) :3089-3092

[10]

Contact angle hysteresis on rough hydrophobic surfaces [J].

He, B ;

Lee, J ;

Patankar, NA .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2004, 248 (1-3) :101-104

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