Droplet behavior analysis on inclined, highly sticky, or slippery superhydrophobic nanostructured surfaces by observation and SPH simulation

Natsui, Shungo; Tonya, Kazui; Nakajima, Daiki; Kikuchi, Tatsuya; Nogami, Hiroshi

doi:10.1016/j.ces.2021.117214

Cited by 6 publications

(1 citation statement)

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“…The results showed that the surface temperature significantly influenced fully rebounding behavior, which determined the temperature limit of superhydrophobic surfaces for anti-icing applications. Additionally, Yang et al [ 21 ], Zigmond et al [ 22 ], and Natsui et al [ 34 ] also studied the dynamic behavior of water droplet icing on superhydrophobic surfaces, and they discovered that surficial chemical substances also had noticeable effects on droplet icing behaviors.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Experimental Study of Micro/Sub-Micro Porous Copper Coating for Anti-Icing Application

Chen

Fang

et al. 2023

Materials

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Micro and sub-micro-spherical copper powder slurries were elaborately prepared to fabricate different types of porous coating surfaces. These surfaces were further treated with low surface energy modification to obtain the superhydrophobic and slippery capacity. The surface wettability and chemical component were measured. The results showed that both the micro and sub-micro porous coating layer greatly increased the water-repellence capability of the substrate compared with the bare copper plate. Notably, the PFDTES-fluorinated coating surfaces yielded superhydrophobic ability against water under 0 °C with a contact angle of ~150° and a contact angle of hysteresis of ~7°. The contact angle results showed that the water repellency of the coating surface deteriorated with decreasing temperature from 10 °C to −20 °C, and the reason was probably recognized as the vapor condensation in the sub-cooled porous layer. The anti-icing test showed that the ice adhesion strengths of the micro and sub-micro-coated surfaces were 38.5 kPa and 30.2 kPa, producing a 62.8% and 72.7% decrease compared to the bare plate. The PFDTES-fluorinated and slippery liquid-infused porous coating surfaces both produced ultra-low ice adhesion strengths of 11.5–15.7 kPa compared with the other non-treated surfaces, which showed prominent properties for anti-icing and deicing requirement of the metallic surface.

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Section: Introductionmentioning

confidence: 99%