Hertz model for contact of water droplet with superhydrophobic surface

被引:25
作者
Molotskii, Michel [1 ]
Torchinsky, Ilya [1 ]
Rosenman, Gil [1 ]
机构
[1] Tel Aviv Univ, Dept Phys Elect, Sch Elect Engn, IL-69978 Tel Aviv, Israel
基金
以色列科学基金会;
关键词
Hertz's model; Contact area; Drops of water; Superhydrophobicity; SUPER-HYDROPHOBIC FILMS; GEL BALLS; GRAVITY; ANGLE; FIELDS; IMPACT;
D O I
10.1016/j.physleta.2009.01.001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We show that dependence of the liquid/superhydrophobic surface apparent contact area on a water droplet size may be obtained within the framework of the simple Hertz's model only, without using the Young's equation. The developed theoretical approach is in a good agreement with our experiments conducted on a ZnO nanomaterial surface. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:804 / 806
页数:3
相关论文
共 30 条
[1]   Charge-induced wettability modification [J].
Aronov, D. ;
Molotskii, M. ;
Rosenman, G. .
APPLIED PHYSICS LETTERS, 2007, 90 (10)
[2]   Wettability inversion induced by weak electron irradiation [J].
Aronov, Daniel ;
Molotskii, Michel .
JOURNAL OF APPLIED PHYSICS, 2008, 104 (11)
[3]   Electron-induced wettability modification [J].
Aronov, Daniel ;
Molotskii, Michel ;
Rosenman, Gil .
PHYSICAL REVIEW B, 2007, 76 (03)
[4]   Adhesive elastic contacts: JKR and more [J].
Barthel, E. .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (16)
[5]  
Bashforth F., 1883, An Attempt to Test the Theories of Capillary Action by Comparing the Theoretical and Measured Forms of Drops of Fluid
[6]   YOUNGS LAW WITH GRAVITY [J].
BLOKHUIS, EM ;
SHILKROT, Y ;
WIDOM, B .
MOLECULAR PHYSICS, 1995, 86 (04) :891-899
[7]   Which shape factor(s) best describe granules? [J].
Bouwman, AM ;
Bosma, JC ;
Vonk, P ;
Wesselingh, JHA ;
Frijlink, HW .
POWDER TECHNOLOGY, 2004, 146 (1-2) :66-72
[8]   EFFECT OF GRAVITY ON CONTACT-ANGLE [J].
FUJII, H ;
NAKAE, H .
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1995, 72 (06) :1505-1512
[9]  
Gennes P. G., 2004, Capillarity and wetting phenomena: Drops, bubbles, pearls, waves, pp7
[10]  
Hertz H, 1882, J REINE ANGEW MATH, V92, P156, DOI DOI 10.1515/CRLL.1882.92.156