Toward a durable superhydrophobic aluminum surface by etching and ZnO nanoparticle deposition

Rezayi, Toktam; Entezari, Mohammad Hassan

doi:10.1016/j.jcis.2015.10.029

Cited by 79 publications

(23 citation statements)

References 32 publications

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“…Advantages of physical treatment include basic processing and commercial accessibility 15 16 . To modify surfaces physically, several approaches are available such as electrospinning 17 , laser and chemical etching 18 19 20 21 methods.…”

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confidence: 99%

Photo Initiated Chemical Vapour Deposition To Increase Polymer Hydrophobicity

Bérard

Patience

Chouinard

et al. 2016

Sci Rep

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Apple growers face new challenges to produce organic apples and now many cover orchards with high-density polyethylene (HDPE) nets to exclude insects, rather than spraying insecticides. However, rainwater- associated wetness favours the development of apple scabs, Venturia inaequalis, whose lesions accumulate on the leaves and fruit causing unsightly spots. Treating the nets with a superhydrophobic coating should reduce the amount of water that passes through the net. Here we treat HDPE and polyethylene terephthalate using photo-initiated chemical vapour deposition (PICVD). We placed polymer samples in a quartz tube and passed a mixture of H2 and CO through it while a UVC lamp (254 nm) illuminated the surface. After the treatment, the contact angle between water droplets and the surface increased by an average of 20°. The contact angle of samples placed 70 cm from the entrance of the tube was higher than those at 45 cm and 20 cm. The PICVD-treated HDPE achieved a contact angle of 124°. Nets spray coated with a solvent-based commercial product achieved 180° but water ingress was, surprisingly, higher than that for nets with a lower contact angle.

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confidence: 99%

Photo Initiated Chemical Vapour Deposition To Increase Polymer Hydrophobicity

Bérard

Patience

Chouinard

et al. 2016

Sci Rep

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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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“…Many methods for the preparation of superhydrophobic surfaces have been reported, such as chemical deposition, oxidation, acid etching, the hydrothermal method, and so on [24][25][26][27]. McCarthy et al used an etching method to construct a rough surface structure and covered the surface with a low surface energy substance, polytetrafluoroethylene, to generate the superhydrophobic surface [28].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Superhydrophobic Surface on Titanium Alloy via Micro-Milling, Anodic Oxidation and Fluorination

et al. 2020

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The superhydrophobic surface has a great advantage of self-cleaning, inhibiting bacterial adhesion, and enhancing anticoagulant properties in the field of biomedical materials. In this paper, a superhydrophobic surface was successfully prepared on titanium alloy via high-speed micro-milling, anodic oxidation and fluoroalkylsilane modification. The surface morphology was investigated by scanning electron microscope and a laser scanning microscope. The surface wettability was investigated through the sessile-drop method. Firstly, regular microgrooves were constructed by micro-milling. Then, nanotube arrays were fabricated by anodic oxidation. Afterwards, fluoroalkylsilane was used to self-assemble a monolayer on the surface with a composite micro/nanostructure. Compared to polished titanium samples, the modified samples exhibited superhydrophobic properties with the water contact angle (CA) of 153.7° and the contact angle hysteresis of 2.1°. The proposed method will provide a new idea for the construction of superhydrophobic titanium surgical instruments and implants in the future.

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Toward a durable superhydrophobic aluminum surface by etching and ZnO nanoparticle deposition

Cited by 79 publications

References 32 publications

Photo Initiated Chemical Vapour Deposition To Increase Polymer Hydrophobicity

Photo Initiated Chemical Vapour Deposition To Increase Polymer Hydrophobicity

Mechanical Durability of Engineered Superhydrophobic Surfaces for Anti-Corrosion

Preparation of Superhydrophobic Surface on Titanium Alloy via Micro-Milling, Anodic Oxidation and Fluorination

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