One-step preparation of transparent superhydrophobic coatings using atmospheric arc discharge

Li, Jian; Huang, Zhengyong; Wang, Feipeng; Yan, Xinzhu; Wei, Yuan

doi:10.1063/1.4927745

Cited by 19 publications

(14 citation statements)

References 33 publications

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“…This obscure phenomenon caused by surface roughness is mainly due to the Mie scattering effect. [20] Mie scattering theory is described in the following equation: [21] Figure 5. digital images of (a) layered glass slides, single glass slide, and after grinding into powder; [17] (b) illustration of material structure influence on their optical property. [18]…”

Section: Superhydrophobicity and Transparencymentioning

confidence: 99%

“…Therefore, it is necessary to find the "critical window", where the roughness is optimized for transparency yet high enough for superhydrophobicity. [21] Based on research, surface roughness below the wavelength of incident light can help minimize Mie scattering. Sub-100 nm, roughly less than one-quarter of the wavelength of visible light has been proven to be the sweet-spot that can allow for superhydrophobic surfaces with high visible light transparency.…”

Section: P E R S O N a L A C C O U N T T H E C H E M I C A L R E C O R Dmentioning

confidence: 99%

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A Mini Review on Superhydrophobic and Transparent Surfaces

Ling

LaCoste

et al. 2020

The Chemical Record

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In recent years, self-cleaning and transparent surfaces have been widely studied for application on smart windows, solar panels, camera lenses, and other optoelectronic devices. The self-cleaning properties can possibly extend the lifetime of these products and decrease, even eliminate, the requirement of chemical detergents and high labor costs of cleaning. It can also promote the overall efficiency of outdoor optoelectronic devices (e. g. solar cell panels) since dirt accumulation and bacteria growth can be slowed down, even inhibited on such surfaces. In this mini review, the fundamentals and conditions that govern superhydrophobicity and transparency are introduced, followed by the discussion of roughness as the competing factor for superhydrophobicity and transparency. Representative examples of the surface design and fabrication are introduced and future perspectives are shared. This mini review can help the research community better understand such surfaces and further accelerate its development for innovative practical applications.

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Section: Superhydrophobicity and Transparencymentioning

confidence: 99%

Section: P E R S O N a L A C C O U N T T H E C H E M I C A L R E C O R Dmentioning

confidence: 99%

A Mini Review on Superhydrophobic and Transparent Surfaces

Ling

LaCoste

et al. 2020

The Chemical Record

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“…In general, the super-hydrophobic surfaces can be achieved by constructing micro/nano-structures on surfaces with low surface energy. Many methods such as chemical etching [17,18], electrochemical deposition [19,20], electrospinning [21,22], phase separation [23,24], plasma treating [25,26], and sol-gel processes [27,28] have been adopted to mimic the “lotus-effect” super-hydrophobic surfaces. The super-hydrophobic surfaces allow a large amount of air entrapment and thus consequently reduce skin friction drag between the surface itself and the droplet.…”

Section: Introductionmentioning

confidence: 99%

One-Step Preparation of Durable Super-Hydrophobic MSR/SiO2 Coatings by Suspension Air Spraying

Huang

Wang

et al. 2018

Micromachines

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In this study, we develop a facial one-step approach to prepare durable super-hydrophobic coatings on glass surfaces. The hydrophobic characteristics, corrosive liquid resistance, and mechanical durability of the super-hydrophobic surface are presented. The as-prepared super-hydrophobic surface exhibits a water contact angle (WCA) of 157.2° and contact angle hysteresis of 2.3°. Mico/nano hierarchical structures and elements of silicon and fluorine is observed on super-hydrophobic surfaces. The adhesion strength and hardness of the surface are determined to be 1st level and 4H, respectively. The coating is, thus, capable of maintaining super-hydrophobic state after sand grinding with a load of 200 g and wear distances of 700 mm. The rough surface retained after severe mechanical abrasion observed by atomic force microscope (AFM) microscopically proves the durable origin of the super-hydrophobic coating. Results demonstrate the feasibility of production of the durable super-hydrophobic coating via enhancing its adhesion strength and surface hardness.

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“…Inspired by lotus leaves in nature, super hydrophobic surfaces with high water contact angle (WCA greater than 150°) and low contact angle hysteresis (CAH less than 5°) have recently drawn considerable attentions in research and applications towards anti-icing [17,18], anti-frosting [19,20], drag reduction [21,22], self-cleaning [23,24] and so forth. Many methods such as chemical etching [25,26], electrochemical deposition [27,28], electrospinning [29,30], phase separation [31,32], plasma treating [33,34] and sol-gel process [35,36] have been adopted to mimic the "lotus-effect" super hydrophobic surfaces. The mainly principle of these methods is a combination of low surface energy composition and micro/nano hierarchical surface structure [37,38].…”

Section: Introductionmentioning

confidence: 99%

Electrohydrodynamic behavior of water droplets on a horizontal super hydrophobic surface and its self-cleaning application

Wei

Huang

et al. 2017

Applied Surface Science

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Moisture is a significant factor that affects the insulation performance of outdoor high-voltage insulators in power systems. Accumulation of water droplets on insulators causes severe problems such as flashover of insulators and power outage. In this study, we develop a method to fabricate a micro/nano hierarchical super hydrophobic surface. The as-prepared super hydrophobic surface exhibits a water contact angle (WCA) of 160.4±2°, slide angle (SA) less than 1° and surface free energy (SFE) of 5.99 mJ/m 2. We investigated the electrohydropdynamic behavior of water droplet on a horizontal super hydrophobic surface compared with hydrophobic RTV silicone rubber surface which was widely used as anti-pollution coating or shed material of composite insulator. Results show that water droplet tended to a self-propelled motion on the super hydrophobic surface while it tended to elongate and break up on the RTV surface. The micro/nano hierarchical surface structure and chemical components with low surface free energy of the super hydrophobic surface jointly contributed to the reduction of skin fraction drag and subsequently made it possible for the motion of water droplet driven by electric field. Furthermore, the self-propelled motion of water droplets could also sweep away contaminations along its moving trace, which provides super hydrophobic surface a promising anti-pollution prospect in power systems.

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One-step preparation of transparent superhydrophobic coatings using atmospheric arc discharge

Cited by 19 publications

References 33 publications

A Mini Review on Superhydrophobic and Transparent Surfaces

A Mini Review on Superhydrophobic and Transparent Surfaces

One-Step Preparation of Durable Super-Hydrophobic MSR/SiO2 Coatings by Suspension Air Spraying

Electrohydrodynamic behavior of water droplets on a horizontal super hydrophobic surface and its self-cleaning application

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