Wetting Transitions on Post-Built and Porous Reliefs

被引：0

作者：

Bormashenko, Edward ^{[1
,2
]}

Pogreb, Roman ^{[1
]}

Whyman, Gene ^{[1
]}

Balter, Sagi ^{[2
,3
]}

Aurbach, Doron ^{[3
]}

机构：

[1] Ariel Univ Ctr Samaria, Fac Appl Phys, IL-40700 Ariel, Israel

[2] Ariel Univ Ctr Samaria, Dept Chem & Biotechnol Engn, IL-40700 Ariel, Israel

[3] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel

来源：

JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY | 2012年 / 26卷 / 8-9期

关键词：

Wetting transitions; Cassie wetting; Cassie impregnating wetting; Wenzel wetting; porous surfaces; post-built surfaces; triple line; ROUGH SURFACES; CONTACT ANGLES; WATER DROPLETS; SUPERHYDROPHOBIC SURFACES; IMPALEMENT TRANSITIONS; CASSIE-BAXTER; WENZEL; HYSTERESIS; WETTABILITY; RESISTANCE;

D O I：

10.1163/156856111X593522

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A comparative study of wetting transitions on porous and post-built polymer surfaces is reported. The transitions were observed under vibration of droplets of different volumes deposited on the surfaces possessing controlled roughness. Initial wetting states were identified as the Cassie air-trapping ('Fakir') state for porous and the Wenzel state for post-built relief, whereas the final wetting state was the Cassie impregnating one for both kinds of surfaces. For both porous and post-built surfaces, wetting transitions occurred under constant force acting on a unit length of the three-phase (triple) line. Wetting transitions for both porous and post-built surfaces start from the triple line. (C) Koninklijke Brill NV, Leiden, 2012

引用

页码：1169 / 1180

页数：12

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