superhydrophobic surfaces
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2022 ◽  
Vol 36 ◽  
pp. 100790
Author(s):  
Emmanuel Nyankson ◽  
Henry Agbe ◽  
Gabriel Kwame Sipi Takyi ◽  
Yaw Delali Bensah ◽  
Dilip Kumar Sarkar

2022 ◽  
pp. 2102010
Author(s):  
Yanlong Zhan ◽  
Sirong Yu ◽  
Alidad Amirfazli ◽  
Abdul Rahim Siddiqui ◽  
Wen Li

RSC Advances ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 297-308
Author(s):  
Zhi Chen ◽  
Yongbo Hu ◽  
Xu He ◽  
Yihao Xu ◽  
Xuesong Liu ◽  
...  

We investigated a one-step method for calcium superhydrophobic surface preparation and researched the formation process of loose, flower-like microstructures. Also, we found that the pressing force strongly impacts the dynamics of water droplets.


Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 44
Author(s):  
Yu Zhang ◽  
Zhentao Zhang ◽  
Junling Yang ◽  
Yunkai Yue ◽  
Huafu Zhang

Inspired by the superhydrophobic properties of some plants and animals with special structures, such as self-cleaning, water repellent, and drag reduction, the research on the basic theory and practical applications of superhydrophobic surfaces is increasing. In this paper, the characteristics of superhydrophobic surfaces and the preparation methods of superhydrophobic surfaces are briefly reviewed. The mechanisms of drag reduction on superhydrophobic surfaces and the effects of parameters such as flow rate, fluid viscosity, wettability, and surface morphology on drag reduction are discussed, as well as the applications of superhydrophobic surfaces in boiling heat transfer and condensation heat transfer. Finally, the limitations of adapting superhydrophobic surfaces to industrial applications are discussed. The possibility of applying superhydrophobic surfaces to highly viscous fluids for heat transfer to reduce flow resistance and improve heat transfer efficiency is introduced as a topic for further research in the future.


Author(s):  
Vijay Kumar ◽  
Rajeev Verma ◽  
Vishal S Sharma ◽  
Varun Sharma

Abstract Increasing interests have been prevalent lately among the research fraternity for the development of superhydrophobic surfaces considering the favorable properties exuded by them. Recently, anti-microbial superhydrophobic coatings have been employed effectively in anti-biofouling, corrosion resistance, and self-cleaning, anti-reflecting coating, biomedical and cavitation erosion applications. Further, patterned topology by micro/nano surface texturing has been perceived as an engineering opportunity to enhance the surface performance and has opened various avenues for exploration. This work reports the recent research findings pertaining to the concept of superhydrophobicity and micro-texturing particularly in the context of their application for the impediment of corrosion in submerged components. The comprehensive review on superhydrophobic surfaces and micro-texturing suggests that the integrated application of these surface modification techniques for mechanical interlocking of deposited coating.


2021 ◽  
pp. 1-22
Author(s):  
Qing Wang ◽  
Shuangshuang Xu ◽  
Xiaoting Xing ◽  
Ning Wang

Natural biological surfaces such as lotus leaves and water striders have micro- and nanostructures and low-surface-energy materials, possessing excellent superhydrophobicity. It has become an important research topic to construct bionic superhydrophobic surfaces and explore their functional applications. This paper reviews the research progress on the fabrication and applications of superhydrophobic surfaces with micro/nanostructures. The techniques used for fabricating superhydrophobic surfaces, including the template method, nano-imprinting technique, laser-treatment, plasma treatment, electrospinning technique, solution-chemical etching method, electrochemical technique, phase separation method and sol–gel process, were introduced. Also, the diverse functional applications of superhydrophobic surfaces such as self-cleaning, anti-icing, oil–water separation, anti-corrosion and drag reduction were summarised. It is believed that green fabrication will become the future development direction of superhydrophobic surfaces. Further exploration for the superhydrophobic surfaces with mechanical stability and durability will be expected to expand the application prospect and commercial value of superhydrophobic surfaces.


2021 ◽  
Vol 21 (12) ◽  
pp. 6212-6216
Author(s):  
Yeon-Ah Park ◽  
Young-Geun Ha

Studies on fabricating robust superhydrophobic surfaces by a low-cost method have been rare, despite the recent demand for nature-inspired superhydrophobic surfaces including self-healing ability in various industrial applications. Herein, we propose a fabrication method for self-healable, robust superhydrophobic nanocomposite films by facile solution-processed spray coating and UV curing. The components of the coating solution include functionalized hydrophobic silica nanoparticles for producing high roughness hierarchical textured structures with low surface energy, and UV-crosslinkable v-POSS and bi-thiol hydrocarbon molecules to improve the film stability. As a result of the synergetic effect of the hydrophobic nanoparticles and UV-crosslinked polymeric compounds, the spray-coated and UV-cured nanocomposite films possess excellent superhydrophobicity (water contact angles > 150º) and high stability, in addition to self-healing abilities.


2021 ◽  
Vol 33 (12) ◽  
pp. 123608
Author(s):  
Henry Ems ◽  
Alfred Tsubaki ◽  
Ben Sukup ◽  
Siamak Nejati ◽  
Dennis Alexander ◽  
...  

2021 ◽  
pp. 131468
Author(s):  
Lei Xing ◽  
Qiaoxin Zhang ◽  
Liting Zhang ◽  
Xingjiu Huang ◽  
Cong Liu ◽  
...  

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