Wetting and electrowetting on corrugated substrates
Wetting and electrowetting on corrugated substrates
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波纹基材上的润湿和电润湿
DOI：
10.1063/1.4984244
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发表时间：
2017-06
期刊：
影响因子：
--
通讯作者：
Zhao Y P
中科院分区：
文献类型：
--
作者：
Wang Z;Zhao Y P
本文从实验和理论上研究了瓦楞基材的润湿和电润湿（EW）。在波纹状基材上，由于表面形貌的各向异性，液滴呈椭圆形，且在不同方向上的扩散速度不同。液滴的铺展通常不仅受表面张力控制，而且受半芯吸控制。实验结果表明，液体沿槽道沿着的传播速度比垂直于槽道的传播速度快得多。然而，在两个方向上的扩展遵循相同的比例定律l/t 4 scin 5。瓦楞基材上的EW与光滑基材上的EW有一定差异。接触角随外加电压的变化呈两阶段线性关系，而不是平面上的光滑曲线。存在一个临界电压将两个级分开。本文还讨论了波纹衬底上液滴从Cassie态到Wenzel态的转变。
Wetting and electrowetting (EW) on corrugated substrates are studied experimentally and theoretically in this paper. On corrugated substrates, because of the anisotropy of surface morphology, the droplet shows an elliptical shape and the spreading velocities in different directions are different. Spreading of a droplet is usually controlled not only by the surface tensions but also by hemi-wicking. Our experimental results indicated that liquids along the grooves propagate much faster than those in the direction vertical to the grooves. However, spreading in both directions obeys the same scaling law of l∼t4∕5. EW on corrugated substrates reveals some differences with that on smooth surfaces. The change of contact angles with an applied voltage follows a linear relationship in two stages instead of the smooth curve on flat surfaces. There exists a critical voltage which divides the two stages. The transition of a droplet from the Cassie state to the Wenzel state on corrugated substrates was also discussed...
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DOI：
10.1016/b978-1-4557-2550-2.00007-9
发表时间：
2013
期刊：
--
影响因子：
--
作者：
J. Berthier
通讯作者：
J. Berthier
影响因子：
9.9
作者：
Brandon, S;Haimovich, N;Marmur, A
通讯作者：
Marmur, A
影响因子：
2.4
作者：
Eral, H. B.;'t Mannetje, D. J. C. M.;Oh, J. M.
通讯作者：
Oh, J. M.
影响因子：
15.6
作者：
BROCHARDWYART, F;DEGENNES, PG
通讯作者：
DEGENNES, PG
影响因子：
4
作者：
V. Lifton;J. A. Taylor;B. Vyas;P. Kolodner;R. Cirelli;N. Basavanhally;A. Papazian;R. Frahm;S. Simon;T. Krupenkin
通讯作者：
V. Lifton;J. A. Taylor;B. Vyas;P. Kolodner;R. Cirelli;N. Basavanhally;A. Papazian;R. Frahm;S. Simon;T. Krupenkin