Recent advances in fabricating durable superhydrophobic surfaces: a review in the aspects of structures and materials

2021 ◽  
Author(s):  
Yun-Yun Quan ◽  
Zhong Chen ◽  
Yuekun Lai ◽  
Zu-Sheng Huang ◽  
Huaqiong Li
Keyword(s):  
Daily Life ◽  
Superhydrophobic Surfaces ◽  
Superhydrophobic Coatings ◽  
Recent Advances ◽  
Structures And Properties

Extensive attention has been concentrated toward the development of superhydrophobic coatings with unique structures and properties due to their extended applications in our daily life.

Recent advances in corrosion resistant superhydrophobic coatings

2018 ◽  
Vol 36 (2) ◽  
pp. 127-153 ◽  
Author(s):  
Ahmed Bahgat Radwan ◽  
Aboubakr M. Abdullah ◽  
Nasser A. Alnuaimi
Keyword(s):  
Contact Angle ◽  
Surface Energy ◽  
Water Contact Angle ◽  
Metals And Alloys ◽  
Superhydrophobic Surfaces ◽  
Water Repellent ◽  
Water Contact ◽  
Corrosion Resistant ◽  
Superhydrophobic Coatings ◽  
Recent Advances

AbstractExtreme water-repellent (superhydrophobic) coatings with water contact angle higher than 150° have caught the attention of corrosion researchers in the last decade as they can be used to protect metals and alloys against corrosion. The latter is a serious problem, as it can threaten human lives in addition to its deleterious effects on the economy and environment. Superhydrophobic coatings (SHCs) can be achieved by lowering the surface energy of a certain coating through combining some of its surface features at the microscale and nanoscales. Although SHCs can be prepared using many different easy techniques, none, to the best of our knowledge, has been applied, so far, on an industrial scale for protection against corrosion of metals and alloys. The present work explains the different models of superhydrophobic surfaces (SHSs) and reviews their fabrication and processing methods with a focus on the recent advances in the corrosion protection of the SHC.

scholarly journals Mechanically robust, thermally stable, highly transparent superhydrophobic coating with low-temperature sol–gel process

RSC Advances ◽  
2017 ◽  
Vol 7 (75) ◽  
pp. 47357-47365 ◽  
Author(s):  
Yanping Zhang ◽  
Binghai Dong ◽  
Shimin Wang ◽  
Li Zhao ◽  
Li Wan ◽  
...  
Keyword(s):  
Low Temperature ◽  
Daily Life ◽  
Sol Gel ◽  
Superhydrophobic Surfaces ◽  
Thermally Stable ◽  
Superhydrophobic Coating ◽  
Engineering Applications ◽  
Wetting Behavior ◽  
Sol Gel Process

The wetting behavior of transparent superhydrophobic surfaces has attracted much attention in our daily life as well as in engineering applications.

Superhydrophobic Coatings: The Salvinia Paradox: Superhydrophobic Surfaces with Hydrophilic Pins for Air Retention Under Water (Adv. Mater. 21/2010)

2010 ◽  
Vol 22 (21) ◽  
pp. n/a-n/a ◽  
Author(s):  
Wilhelm Barthlott ◽  
Thomas Schimmel ◽  
Sabine Wiersch ◽  
Kerstin Koch ◽  
Martin Brede ◽  
...  
Keyword(s):  
Superhydrophobic Surfaces ◽  
Superhydrophobic Coatings

scholarly journals Development of Organosilicon-Based Superhydrophobic Coatings through Atmospheric Pressure Plasma Polymerization of HMDSO in Nitrogen Plasma

Materials ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 219 ◽  
Author(s):  
Siavash Asadollahi ◽  
Jacopo Profili ◽  
Masoud Farzaneh ◽  
Luc Stafford
Keyword(s):  
Contact Angle ◽  
Atmospheric Pressure ◽  
Plasma Polymerization ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Nitrogen Plasma ◽  
Superhydrophobic Surfaces ◽  
Atmospheric Pressure Plasma Jet ◽  
Pressure Plasma ◽  
Superhydrophobic Coatings

Water-repellent surfaces, often referred to as superhydrophobic surfaces, have found numerous potential applications in several industries. However, the synthesis of stable superhydrophobic surfaces through economical and practical processes remains a challenge. In the present work, we report on the development of an organosilicon-based superhydrophobic coating using an atmospheric-pressure plasma jet with an emphasis on precursor fragmentation dynamics as a function of power and precursor flow rate. The plasma jet is initially modified with a quartz tube to limit the diffusion of oxygen from the ambient air into the discharge zone. Then, superhydrophobic coatings are developed on a pre-treated microporous aluminum-6061 substrate through plasma polymerization of HMDSO in the confined atmospheric pressure plasma jet operating in nitrogen plasma. All surfaces presented here are superhydrophobic with a static contact angle higher than 150° and contact angle hysteresis lower than 6°. It is shown that increasing the plasma power leads to a higher oxide content in the coating, which can be correlated to higher precursor fragmentation, thus reducing the hydrophobic behavior of the surface. Furthermore, increasing the precursor flow rate led to higher deposition and lower precursor fragmentation, leading to a more organic coating compared to other cases.

scholarly journals Water droplet friction and rolling dynamics on superhydrophobic surfaces

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Matilda Backholm ◽  
Daniel Molpeceres ◽  
Maja Vuckovac ◽  
Heikki Nurmi ◽  
Matti J. Hokkanen ◽  
...  
Keyword(s):  
Contact Angle ◽  
Friction Force ◽  
Water Droplet ◽  
Superhydrophobic Surfaces ◽  
Silicon Surfaces ◽  
Force Sensors ◽  
Water Droplets ◽  
Indirect Contact ◽  
Gold Standard Method ◽  
Superhydrophobic Coatings

Abstract Superhydrophobicity is a remarkable surface property found in nature and mimicked in many engineering applications, including anti-wetting, anti-fogging, and anti-fouling coatings. As synthetic superhydrophobic coatings approach the extreme non-wetting limit, quantification of their slipperiness becomes increasingly challenging: although contact angle goniometry remains widely used as the gold standard method, it has proven insufficient. Here, micropipette force sensors are used to directly measure the friction force of water droplets moving on super-slippery superhydrophobic surfaces that cannot be quantified with contact angle goniometry. Superhydrophobic etched silicon surfaces with tunable slipperiness are investigated as model samples. Micropipette force sensors render up to three orders of magnitude better force sensitivity than using the indirect contact angle goniometry approach. We directly measure a friction force as low as 7 ± 4 nN for a millimetric water droplet moving on the most slippery surface. Finally, we combine micropipette force sensors with particle image velocimetry and reveal purely rolling water droplets on superhydrophobic surfaces.

scholarly journals Special Issue on Superhydrophobic Coatings for Corrosion and Tribology

Coatings ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 668
Author(s):  
Wang ◽  
Zhao
Keyword(s):  
Corrosion Protection ◽  
Water Repellency ◽  
Superhydrophobic Surfaces ◽  
Special Issue ◽  
Superhydrophobic Coatings ◽  
Lotus Leaves

Superhydrophobicity, showing strong water-repellency, has been widely investigated for many applications, especially in the fields of corrosion protection and antifouling. Water tends to roll off from superhydrophobic surfaces like natural lotus leaves[...]

scholarly journals Zirconia Nanotube Coatings - UV-Resistant Superhydrophobic Surfaces

2021 ◽  
Author(s):  
Swathi Naidu Vakamulla Raghu ◽  
Manuela S Killian ◽  
Khajidkhand Chuluunbandi
Keyword(s):  
Photoelectron Spectroscopy ◽  
Mechanical Stability ◽  
Single Step ◽  
Superhydrophobic Surfaces ◽  
Electrochemical Anodization ◽  
Oxide Surfaces ◽  
Metal Oxide Surfaces ◽  
Superhydrophobic Coatings ◽  
Assembled Monolayers ◽  
Nanostructured Oxide

Surface modifications influence material interactions such as wettability, imparting hydrophobicity or hydrophilicity. Mainstream research focused on enhancing product shelf-life, directs attention towards superhydrophobic surfaces (SHS). SHS offer several benefits for outdoor applications such as self-cleaning, anti-soiling, anti-mist etc. In this manuscript, we explore the possibility of combining structural and chemical modifications to metal substrates in order to create superhydrophobic metal oxide surfaces. ZrO2-nanotubes are evaluated with regard to their application as transparent UV-stable superhydrophobic coatings. Nanostructured oxide surfaces are created via single-step electrochemical anodization. The absence of HF acid-based pre-etching steps offer a safe and alternatively a green synthesis route. Anodized oxides are modified using octadecylphosphonic acid self-assembled monolayers, demonstrate superhydrophobicity and are evaluated for their mechanical stability under a jet of water, chemical stability under indirect sunlight irradiation in air/water and direct UV exposure. Zirconia nanotubular films were evaluated for optical transparency using light microscopy and surface wettability of the different zirconia-composites was compared to the model system-titania. Structural and compositional differences of the SAM layer upon time dependent decay were analyzed with X-ray photoelectron spectroscopy. <br>

Recent Advances in Femtosecond Laser-Induced Superhydrophobic Surfaces

2021 ◽  
Vol 41 (1) ◽  
pp. 0114003-9
Author(s):  
白雪 Bai Xue ◽  
陈烽 Chen Feng
Keyword(s):  
Femtosecond Laser ◽  
Superhydrophobic Surfaces ◽  
Recent Advances

Recent advances in nanostructured superhydrophobic surfaces: fabrication and long-term durability challenges

2022 ◽  
Vol 36 ◽  
pp. 100790
Author(s):  
Emmanuel Nyankson ◽  
Henry Agbe ◽  
Gabriel Kwame Sipi Takyi ◽  
Yaw Delali Bensah ◽  
Dilip Kumar Sarkar
Keyword(s):  
Superhydrophobic Surfaces ◽  
Recent Advances
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