Extreme resistance of superhydrophobic surfaces to impalement: reversible electrowetting related to the impacting/bouncing drop test

Langmuir : the ACS Journal of Surfaces and Colloids
P BrunetRabah Boukherroub

Abstract

The paper reports on the comparison of the wetting properties of superhydrophobic silicon nanowires (NWs), using drop impact impalement and electrowetting (EW) experiments. A correlation between the resistance to impalement on both EW and drop impact is shown. From the results, it is evident that when increasing the length and density of NWs (i) the thresholds for drop impact and EW irreversibility increase and (ii) the contact-angle hysteresis after impalement decreases. This suggests that the structure of the NW network could allow for partial impalement, hence preserving the reversibility, and that EW acts the same way as an external pressure. The most robust of our surfaces shows a threshold to impalement higher than 35 kPa, while most of the superhydrophobic surfaces tested so far have impalement thresholds smaller than 10 kPa.

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Citations

Dec 29, 2013·Journal of Colloid and Interface Science·Thi Phuong Nhung NguyenYannick Coffinier
Oct 21, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·P S BrownJ P S Badyal
May 23, 2014·ACS Applied Materials & Interfaces·Ashish AsthanaDimos Poulikakos
Jul 25, 2014·Lab on a Chip·Florian LapierreVincent Thomy
Jul 4, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Hyungmo KimJoonwon Kim
Aug 31, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Nabil DendaneYannick Coffinier
Sep 14, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·C AntoniniM Marengo
Oct 4, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Florian LapierreVincent Thomy
Jan 10, 2012·Colloids and Surfaces. B, Biointerfaces·Edward Bormashenko, Roman Grynyov
Nov 3, 2012·Journal of Colloid and Interface Science·Sung-Chul ChaMyoung-Woon Moon
Sep 22, 2012·Journal of Colloid and Interface Science·Yunhong Liu, Guangji Li
Sep 18, 2010·Journal of Colloid and Interface Science·Zhiguang GuoBao-Lian Su
Nov 30, 2010·Chemical Communications : Chem Comm·Nacera MegoudaRabah Boukherroub
Dec 4, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Quanyong HaoShuhuai Yao
Jul 14, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Valentin HislerHamidou Haidara
Nov 22, 2013·Nature·James C BirdKripa K Varanasi
Dec 31, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Mihaela MateescuLaurent Vonna
Apr 21, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Daewoo Han, Andrew J Steckl
Sep 2, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Weiyi LuYu Qiao
Apr 2, 2010·ACS Applied Materials & Interfaces·Hongqin LiuRabah Boukherroub
May 1, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Florian LapierreRabah Boukherroub
Oct 14, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Peichun TsaiDetlef Lohse
Apr 2, 2010·ACS Applied Materials & Interfaces·Elisabeth GalopinRabah Boukherroub
May 15, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Maesoon ImYang-Kyu Choi
Jul 3, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Marios BarberoglouEmmanuel Stratakis
Oct 30, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Thi Phuong Nhung NguyenRabah Boukherroub
Oct 1, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Maesoon ImYang-Kyu Choi
Oct 20, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Renaud DufourVincent Senez
Jan 3, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Ben-Xi ZhangXiao-Dong Wang

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