One-step hydrothermal method to fabricate drag reduction superhydrophobic surface on aluminum foil

Tuo, Yanjing; Chen, Weiping; Zhang, Haifeng; Li, Pujun; Liu, Xiaowei

doi:10.1016/j.apsusc.2018.01.046

Cited by 101 publications

(29 citation statements)

References 26 publications

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“…Recently, inspired by nature, previous literature reported that the application of super-hydrophobic coating can be regarded as an effective route for corrosion prevention due to its splendid low-affinity to water [10][11][12][13]. At present, various techniques have been used to successfully fabricate super-hydrophobic coatings, such as thermal embossing [14], chemical etching [15], chemical vapor deposition [16], electrodeposition [17], sol-gel [18], and hydrothermal reaction [19], etc. However, above methods generally involve tedious chemical preparation, multiple processing steps and expensive equipment, which will limit the fabrication efficiency for superhydrophobic products [20].…”

Section: Introductionmentioning

confidence: 99%

A contrastive investigation on anticorrosive performance of laser-induced super-hydrophobic and oil-infused slippery coatings

Yang

Liu

Tian

2020

Progress in Organic Coatings

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Section: Introductionmentioning

confidence: 99%

A contrastive investigation on anticorrosive performance of laser-induced super-hydrophobic and oil-infused slippery coatings

Yang

Liu

Tian

2020

Progress in Organic Coatings

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“…As discussed above, surface chemical composition and surface roughness are the key factors contributing in the formation of superhydrophobic surfaces. There are many methods and techniques to create roughness followed by modification to achieve superhydrophobic coating, such as sol-gel processing methods, 4 etching, 5 electrodeposition, [6][7][8] anodization, 9 hydrothermal synthesis, 10 spray coating, 11 and electrospinning. 12 Electrospinning (ES) is a facile and effective pathway to fabricate continual polymeric nanofibers.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of superhydrophobic and self cleaningPVA‐silicafiber coating on304L SSsurfaces by electrospinning

Vanithakumari

Athulya

George

et al. 2020

J of Applied Polymer Sci

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In this work superhydrophobic coating with self cleaning property is fabricated on 304L SS samples directly using a simple one step electrospinning process followed by silane treatment by using polyvinyl alcohol (PVA) and tetraethyl orthosilicate solution. A maximum water contact angle of 169.2 ± 2.1 is obtained at an electrospinning potential of 15 kV for 2 h, with a distance of 18 cm between the collector and needle. The hierarchical nanostructures thus formed on 304L SS composed of poly(vinyl alcohol)-silica microbeads and nanofibers. The surface morphologies are optimized by varying the electrospinning voltage, time, distance between needle and the collector and aging duration of the precursors. Attenuated total reflectance-infrared spectroscopy studies at different stages of preparation confirmed the presence of PVA/SiO 2 composite nanofibers deposited on the 304L SS surface. The reaction of SiO 2 nanofibers with hexamethyl disilazane resulted in the formation of Si O Si bonds that provided water repellent property. The developed SHP surface coating on 304L SS sample showed dynamic bouncing of water droplets and excellent self cleaning performance. The sample retained the SHP behavior in chloride solutions with different ionic strengths and pH.

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“…By spraying polymethyl methacrylate and a hydrophobic nanoscale silica compound onto a hydrophilic steel substrate, Wang et al reported that effective drag-reduction behavior was found during a sailing test [15]. Tuo et al showed that drag reduction was decreased by 20% on a superhydrophobic surface when the flow velocity was between 2 and 5 m/s [16]. However, compared with biomimetic shark-skin surfaces, the drag reduction of artificial lotus-like surfaces was much lower, and the mechanism of this effect is still under investigation.…”

Section: Introductionmentioning

confidence: 99%

Constructing a Dual-Function Surface by Microcasting and Nanospraying for Efficient Drag Reduction and Potential Antifouling Capabilities

et al. 2019

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To improve the drag-reducing and antifouling performance of marine equipment, it is indispensable to learn from structures and materials that are found in nature. This is due to their excellent properties, such as intelligence, microminiaturization, hierarchical assembly, and adaptability. Considerable interest has arisen in fabricating surfaces with various types of biomimetic structures, which exhibit promising and synergistic performances similar to living organisms. In this study, a dual bio-inspired shark-skin and lotus-structure (BSLS) surface was developed for fabrication on commercial polyurethane (PU) polymer. Firstly, the shark-skin pattern was transferred on the PU by microcasting. Secondly, hierarchical micro- and nanostructures were introduced by spraying mesoporous silica nanospheres (MSNs). The dual biomimetic substrates were characterized by scanning electron microscopy, water contact angle characterization, antifouling, self-cleaning, and water flow impacting experiments. The results revealed that the BSLS surface exhibited dual biomimetic features. The micro- and nano-lotus-like structures were localized on a replicated shark dermal denticle. A contact angle of 147° was observed on the dual-treated surface and the contact angle hysteresis was decreased by 20% compared with that of the nontreated surface. Fluid drag was determined with shear stress measurements and a drag reduction of 36.7% was found for the biomimetic surface. With continuous impacting of high-speed water for up to 10 h, the biomimetic surface stayed superhydrophobic. Material properties such as inhibition of protein adsorption, mechanical robustness, and self-cleaning performances were evaluated, and the data indicated these behaviors were significantly improved. The mechanisms of drag reduction and self-cleaning are discussed. Our results indicate that this method is a potential strategy for efficient drag reduction and antifouling capabilities.

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One-step hydrothermal method to fabricate drag reduction superhydrophobic surface on aluminum foil

Cited by 101 publications

References 26 publications

A contrastive investigation on anticorrosive performance of laser-induced super-hydrophobic and oil-infused slippery coatings

A contrastive investigation on anticorrosive performance of laser-induced super-hydrophobic and oil-infused slippery coatings

Fabrication of superhydrophobic and self cleaningPVA‐silicafiber coating on304L SSsurfaces by electrospinning

Constructing a Dual-Function Surface by Microcasting and Nanospraying for Efficient Drag Reduction and Potential Antifouling Capabilities

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