Plasma treatment of silicone oil- infused surfaces switches impact of water droplets from bouncing to tanner-like spreading

被引：12

作者：

Multanen, Victor ^{[1
]}

Whyman, Gene ^{[2
]}

Shulzinger, Evgeny ^{[2
]}

Valtsifer, Viktor ^{[3
]}

Bormashenko, Edward ^{[1
]}

机构：

[1] Ariel Univ, Engn Fac, Chem Engn Biotechnol & Mat Dept, POB 3, IL-407000 Ariel, Israel

[2] Ariel Univ, Nat Sci Fac, Phys Dept, POB 3, IL-407000 Ariel, Israel

[3] UB RAS, Inst Tech Chem, Academician Korolev St 3, Perm 614013, Russia

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2018年 / 538卷

关键词：

Cold plasma; Oil-infused surface; Silicone oil; Water droplets; Bouncing; Tanner-like spreading; DROPS; AIR; DYNAMICS; ACTIVATION; SLIPPERY; LIQUIDS;

D O I：

10.1016/j.colsurfa.2017.10.084

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 ; 081704 ;

摘要：

Bouncing of water droplets on cold-plasma-treated and non-treated silicone-oil-infused microporous surfaces is reported. Cold plasma treatment of oil-infused surfaces switches the quasi-elastic bouncing to a two-stage spreading. At the first stage, spreading was governed by the square-root time dependence of the contact radius; whereas at the final stage, the kinetics of spreading conformed with the Tanner-like law. Water droplets placed on the pristine silicone-oil infused surfaces are eventually coated with the silicone oil; in contrast water droplets spread on the plasma-treated oil remained uncoated, due to the increase of the specific energy of the silicon oil induced by the plasma treatment. The semi-qualitative analysis of bouncing is introduced.

引用

页码：133 / 139

页数：7