Ultrafast fabrication of superhydrophobic surfaces on engineering light metals by single-step immersion process

Ishizaki, Takahiro; Kumagai, Sou; Tsunakawa, Mika; Furukawa, Toshiharu; Nakamura, Kae

doi:10.1016/j.matlet.2017.01.050

Cited by 21 publications

(12 citation statements)

References 23 publications

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“…This method is capable of providing information about corrosion rate, corrosion mechanisms, and even the susceptibility of materials to corrosion under stimulated environments [19,92]. The working mechanism of polarization method involves varying the potential of the test sample, which acts as the working electrode, and plotting the current produced as a function of either potential or time [93][94][95]. Though the test is less time-consuming and less complex, the results are comparable and even superior to the outputs from non-electrochemical tests that require longer time and effort.…”

Section: Potentiodynamic Polarization Methodsmentioning

confidence: 99%

Mechanical Durability of Engineered Superhydrophobic Surfaces for Anti-Corrosion

2018

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Engineered superhydrophobic coating for anti-corrosion applications is a subject of great significance at present. However, the use of superhydrophobic coatings for anti-corrosion applications is hindered by the mechanical durability in many cases. There is a need for an understanding not only of how to fabricate such surfaces, but also of the corrosion resistance and mechanical durability of those coatings. This review discusses recent developments in the mechanical durability of superhydrophobic coatings primarily used for anti-corrosion. First, superhydrophobicity is introduced with an emphasis on different wetting models. After that, this review classifies the nanofabrication methods based on the material and methods of surface functionalization. Furthermore, the testing procedures used for the measurement of corrosion and mechanical durability are presented. Finally, the mechanical durability and anti-corrosion performance of the developed superhydrophobic coatings are discussed.

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Section: Potentiodynamic Polarization Methodsmentioning

confidence: 99%

Mechanical Durability of Engineered Superhydrophobic Surfaces for Anti-Corrosion

2018

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“…Therefore, significant efforts are currently 2 of 16 being made in analyzing the mechanism of antibacterial activity of magnesium-based alloys [2][3][4][5], and finding the ways to slow down the rate of degradation. Among the most promising options for protection against degradation are magnesium alloying [6][7][8], the use of particles of magnesium or magnesium alloys as fillers for polymer matrices [9][10][11], deposition of protective layers on magnesium alloy substrates [12], and the use of treatments of magnesium alloys, leading to a superhydrophobic state in the surface [13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial Activity and Degradation of Superhydrophobic Magnesium Substrates in Bacterial Media

Emelyanenko

Kaminsky

Пыцкий

et al. 2021

Metals

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The interest in magnesium-based materials is promoted by their biocompatibility, their bioresorbability, and their recently discovered antibacterial potential. Until now, the widespread use of magnesium alloys in different corrosive environments was inhibited by their weakly controllable degradation rate and poorly understood microbiologically induced corrosion behavior. To better understand the degradation and usability of magnesium-based alloys, in this study we have fabricated superhydrophobic coatings on a magnesium-based alloy, and analyzed the behavior of this alloy in bacterial dispersions of Pseudomonas aeruginosa and Klebsiella pneumoniae cells in phosphate-buffered saline. It was shown that the immersion of such coatings in bacterial dispersions causes notable changes in the morphology of the samples, dependent on the bacterial dispersion composition and the type of bacterial strain. The interaction of the superhydrophobic coatings with the bacterial dispersion caused the formation of biofilms and sodium polyphosphate films, which provided enhanced barrier properties in magnesium dissolution and hence in dispersion medium alkalization, eventually leading to the inhibition of magnesium substrate degradation. The electrochemical data obtained for superhydrophobic samples in continuous contact with corrosive bacterial dispersions for 48 h indicated a high level of anticorrosion protection.

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“…Hierarchically structured surfaces with well-defined textures play very significant roles in sophisticated applications in sensors [1], photonics [2], tissue engineering [3], and superhydrophobic materials [4][5][6][7][8][9][10][11][12]. Generally, these surfaces are prepared in several steps combining mechanical, laser machining, physicochemical, and plasma technologies [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Hierarchically Structured Polystyrene Surfaces with Superhydrophobic Properties by Plasma-Assisted Fluorination

et al. 2019

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The nanotexturing of microstructured polystyrene surfaces through CF4 plasma chemical fluorination is presented in this study. It is demonstrated that the parameters of a surface micropore-generation process, together with the setup of subsequent plasma-chemical modifications, allows for the creation of a long-term (weeks) surface-stable micro- and nanotexture with high hydrophobicity (water contact angle >150°). Surface micropores were generated initially via the time-sequenced dosing of mixed solvents onto a polystyrene surface (Petri dish) in a spin-coater. In the second step, tetrafluoromethane (CF4) plasma fluorination was used for the generation of a specific surface nanotexture and the modulation of the surface chemical composition. Experimental results of microscopic, goniometric, and spectroscopic measurements have shown that a single combination of phase separation methods and plasma processes enables the facile preparation of a wide spectrum of hierarchically structured surfaces differing in their wetting properties and application potentials.

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Ultrafast fabrication of superhydrophobic surfaces on engineering light metals by single-step immersion process

Cited by 21 publications

References 23 publications

Mechanical Durability of Engineered Superhydrophobic Surfaces for Anti-Corrosion

Mechanical Durability of Engineered Superhydrophobic Surfaces for Anti-Corrosion

Antimicrobial Activity and Degradation of Superhydrophobic Magnesium Substrates in Bacterial Media

Preparation of Hierarchically Structured Polystyrene Surfaces with Superhydrophobic Properties by Plasma-Assisted Fluorination

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