Shape memory superhydrophobic surface with switchable transition between “Lotus Effect” to “Rose Petal Effect”

2020 ◽  
Vol 382 ◽  
pp. 122989 ◽  
Author(s):  
Yanlong Shao ◽  
Jie Zhao ◽  
Yong Fan ◽  
Zhenping Wan ◽  
Longsheng Lu ◽  
...  
Keyword(s):  
Shape Memory ◽  
Superhydrophobic Surface ◽  
Lotus Effect ◽  
Rose Petal ◽  
Rose Petal Effect

Smart Copolymer-Functionalized Flexible Surfaces with Photoswitchable Wettability: From Superhydrophobicity with “Rose Petal” Effect to Superhydrophilicity

2019 ◽  
Vol 11 (28) ◽  
pp. 25436-25444 ◽  
Author(s):  
Chuanyong Zong ◽  
Mei Hu ◽  
Umair Azhar ◽  
Xu Chen ◽  
Yabin Zhang ◽  
...  
Keyword(s):  
Rose Petal ◽  
Rose Petal Effect

Special Wetting Behaviors on Canna Leaf and its Dependence with Microstructures

2013 ◽  
Vol 779-780 ◽  
pp. 64-67
Author(s):  
Xiao Hua Yang ◽  
Jian Hua Xiao ◽  
Jun Fei Ou
Keyword(s):  
Contact Angle ◽  
Contact Angle Hysteresis ◽  
Lotus Leaf ◽  
Micro Scale ◽  
High Adhesion ◽  
Rose Petal ◽  
High Contact Angle ◽  
Wetting Behaviors ◽  
The Rose ◽  
Rose Petal Effect

Like lotus leaf and rose petal, the canna leaf also has excellent super hydrophobicity.The purpose of this paper is to systematically study the super hydrophilicity of canna leaf. Using SEM to observe the morphology of the canna leaf, and analytical balance to measure the adhensive force between water droplet and the leaf . This paper shows that the first type of the canna leaf which has co-exsitence of the nanocrumb and micro-scale convex cells has the high contact angle and low contact angle hysteresis similar to lotus leaf. The another type on the leaf has high contact angle but high adhesion in a certain extent like the rose petal effect, whose microstructure unitarily simple has the micro convex cells, do not distributed anything of nanoscale.

Contrasting water adhesion strengths of hydrophobic surfaces engraved with hierarchical grooves: lotus leaf and rose petal effects

Nanoscale ◽  
2017 ◽  
Vol 9 (42) ◽  
pp. 16200-16204 ◽  
Author(s):  
Zhengqing Zhang ◽  
Man Yeong Ha ◽  
Joonkyung Jang
Keyword(s):  
Molecular Dynamics ◽  
Superhydrophobic Surface ◽  
Wetting Transition ◽  
Hydrophobic Surfaces ◽  
Lotus Leaf ◽  
Water Adhesion ◽  
Rose Petal

Molecular dynamics study on the (de)wetting transition of hierarchical grooves engraved on a superhydrophobic surface.

Rose Petal Effect

2016 ◽  
pp. 3489-3497
Author(s):  
Bharat Bhushan ◽  
Michael Nosonovsky
Keyword(s):  
Rose Petal ◽  
Rose Petal Effect

Rose Petal Effect

2012 ◽  
pp. 2265-2272 ◽  
Author(s):  
Jae-Sung Kwon ◽  
Raviraj Thakur ◽  
Steven T. Wereley ◽  
J. David Schall ◽  
Paul T. Mikulski ◽  
...  
Keyword(s):  
Rose Petal ◽  
Rose Petal Effect

The rose petal effect and the modes of superhydrophobicity

2010 ◽  
Vol 368 (1929) ◽  
pp. 4713-4728 ◽  
Author(s):  
Bharat Bhushan ◽  
Michael Nosonovsky
Keyword(s):  
Contact Angle ◽  
Rough Surface ◽  
Solid Surface ◽  
Tilt Angle ◽  
Rough Surfaces ◽  
Strong Adhesion ◽  
Rose Petal ◽  
The Rose ◽  
Rose Petal Effect ◽  
Active Investigation

The wetting of rough surfaces remains a subject of active investigation by scientists. The contact angle (CA) is a traditional parameter used to characterize the hydrophobicity/philicity of a solid surface. However, it was found recently that high CAs can coexist with strong adhesion between water and a solid surface in the case of the so-called ‘rose petal effect’. Several additional parameters have been proposed to characterize the interaction of water with a rough solid surface, including the CA hysteresis, the ability of water droplets to bounce off a solid surface, the tilt angle needed to initiate the flow of a droplet, and the normal and shear adhesion. It is clear now that wetting is not characterized by a single parameter, since several modes or regimes of wetting of a rough surface can exist, including the Wenzel, Cassie, lotus and petal. Understanding the wetting of rough surfaces is important in order to design non-adhesive surfaces for various applications.

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