Superhydrophobic Materials and Coatings. From Basic Researches to Practical Applications

Emelyanenko, Alexandre M.

doi:10.1134/s1061933x22040032

Cited by 8 publications

(5 citation statements)

References 19 publications

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“…Being inspired by vivid examples found in nature, initially, the superhydrophobic coatings were fabricated by mimicking [12,13] or even templating the natural superhydrophobic surfaces [14] like butterfly wings or lotus leaves. An advance in theoretical understanding [11,15,16] of principles of design of superhydrophobic coatings, in particular the creation of multimodal roughness, ensuring appropriate curvature of texture elements [17] and lowering the surface energy, allowed passing to the creation of mass-scaled superhydrophobic coatings and opened the way to practical applications.…”

Section: Mechanisms Behind the Corrosion Protection By The Superhydro...mentioning

confidence: 99%

Laser Obtained Superhydrophobic State for Stainless Steel Corrosion Protection, a Review

Emelyanenko

Бойнович

2023

Coatings

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Stainless steel has become an integral part of modern engineering materials and daily life due to its mechanical efficiency, strength, recyclability, high resistance to oxidation and corrosive attack, which make it the ideal material for many kinds of applications. At the same time, steel suffers from certain types of corrosion, such as intergranular corrosion, or contact corrosion that develops when stainless steel comes into contact with carbon steel or another metal with a different electrochemical potential. Finally, pitting corrosion is a serious problem often occurring when stainless steel parts work in sea water. This paper provides a brief overview of methods for protecting stainless steel from corrosion using a new approach based on superhydrophobization of the surface of stainless steel using laser processing followed by the deposition of a layer of a substance with a low surface energy. The review discusses the mechanisms of corrosion protection by such coatings and the properties of superhydrophobic coatings presented in the literature. Superhydrophobic protective coatings on stainless steel have been shown to significantly reduce corrosion, with some demonstrating a decrease in corrosion current of up to 156 times. However, a more comprehensive analysis of the mechanisms contributing to this effect, as well as a comparison with anti-corrosion coatings on other metals, suggests that the combination of these mechanisms has the potential to create even more durable and effective surfaces for corrosion protection of stainless steel.

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Section: Mechanisms Behind the Corrosion Protection By The Superhydro...mentioning

confidence: 99%

Laser Obtained Superhydrophobic State for Stainless Steel Corrosion Protection, a Review

Emelyanenko

Бойнович

2023

Coatings

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“…Fortunately, biomimetic superhydrophobic surfaces (SHS) inspired by various types of organisms provide ideas for solving the problems of ice protection and drag reduction. 2 The SHS has important applications in microdroplet transport, 3,4 antifrosting, 5,6 drag reduction, 7,8 ice prevention, 9−11 etc. However, most of the SHS just focuses on one of the drag reduction or anti-icing applications, which cannot meet the needs of complex environments.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Therefore, it is urgent to provide a comprehensive method that can not only prevent ice formation but also reduce drag, unlocking new levels of safety, efficiency, and cost-effectiveness. Fortunately, biomimetic superhydrophobic surfaces (SHS) inspired by various types of organisms provide ideas for solving the problems of ice protection and drag reduction . The SHS has important applications in microdroplet transport, , antifrosting, , drag reduction, , ice prevention, − etc.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Surfaces with Excellent Ice Prevention and Drag Reduction Properties Inspired by Iridaceae Leaf

Zhou,

Feng,

Wang

et al. 2024

Langmuir

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The anti-icing and drag-reduction properties of diverse microstructured surfaces have undergone extensive study over the past decade. Nonetheless, tough environments enforce stringent demands on the composite characteristics of superhydrophobic surfaces (SHS). In this study, fresh composite structures were fabricated on a metal substrate by nanosecond laser machining technology, drawing inspiration from the hardy plant Iridaceae. The prepared sample surface mainly consists of a periodic microrhombus array and irregular nanosheets. To comprehensively investigate the effect of its special structure on surface properties, three surfaces with different sizes of rhombic structures were used for comparative analysis, and the results show that the SH-S2 sample is optimal. This can significantly delay the freezing time by an impressive 1404 s at −10 °C while revealing the sample surface anti-icing strategy. In addition, the rheological experiments determined over 300 μm of slip length for the SH-S2 sample, and the drag reduction rate of the surface reaches nearly 40%, which is well aligned with the results of the delayed icing experiments. Finally, the mechanical durability of the SH-S2 surface was investigated through scratch damage, sandpaper abrasion, reparability trials, and icing and melting cycle tests. This research presents a new approach and methodology for the application of SHS on polar ship surfaces.

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“…Zhang et al , , for example, have reported that the freezing time of 60 μL droplets on the surface at −5 °C was extended to 258.7 ± 5.9 s by spraying a coating on the substrate surface to obtain a superhydrophobic surface. Superhydrophobic coatings are favored because of their simple preparation and applicability to various substrates. − However, considering the poor mechanical durability and environmental pollution of the coating, directly endowing the substrate surface with superhydrophobicity is another effective way. At the same time, the texture design on the substrate surface can greatly enhance the original wetting characteristics of the surface.…”

Section: Introductionmentioning

confidence: 99%

Phyllostachys Viridis-Leaf-like MLMN Surfaces Constructed by Nanosecond Laser Hybridization for Superhydrophobic Antifogging and Anti-Icing

Feng,

Chu,

Tian

et al. 2023

ACS Appl. Mater. Interfaces

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In nature, many species commonly evolve specific functional surfaces to withstand harsh external environments. In particular, structured wettability of surfaces has attracted tremendous interest due to its great potential in antifogging and anti-icing properties. Phyllostachys Viridis is a resistant low-temperature (−18 °C) plant with superhydrophobicity and ice resistivity behaviors. In this work, with inspiration from the representative cold-tolerant plants leaves, a unique multilevel micronano (MLMN) surface was fabricated on copper substrate by ultrafast laser process, which exhibited superior superhydrophobic characteristics with the water contact angle > 165° and rolling angle< 2°. In the dynamic wettability experiment, the rebound efficiency of the droplet on the MLMN surface reached 20.6%, and the contact time was only 10.6 ms. In the condensation experiment, the nucleation, growth, merging, and bouncing of fog drops on the surface was distinctly observed, indicating that rational texture structures can improve the antifogging performance of the surface. In the anti-icing experiment, the freezing time was delayed to 921 s at −10 °C, and the freezing time of salt water reached a staggering 1214 s. Moreover, the mechanical durability of MLMN surfaces was confirmed by scratch damage, sandpaper abrasion, and icing and melting cycle tests, and their repairability was evaluated for product applications in practice. Finally, the underlying antifogging/anti-icing strategy of the MLMN surface was also revealed. We anticipate that the investigations offer a promising way to handily design and fabricate multiscale hierarchical structures with reliable antifogging and anti-icing performance, especially in saltwater-related applications.

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Superhydrophobic Materials and Coatings. From Basic Researches to Practical Applications

Cited by 8 publications

References 19 publications

Laser Obtained Superhydrophobic State for Stainless Steel Corrosion Protection, a Review

Laser Obtained Superhydrophobic State for Stainless Steel Corrosion Protection, a Review

Superhydrophobic Surfaces with Excellent Ice Prevention and Drag Reduction Properties Inspired by Iridaceae Leaf

Phyllostachys Viridis-Leaf-like MLMN Surfaces Constructed by Nanosecond Laser Hybridization for Superhydrophobic Antifogging and Anti-Icing

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