Robust superhydrophobic aluminum alloy surfaces with anti-icing ability, thermostability, and mechanical durability

Sun, Ruoyu; Jing, Zhao; Li, Zhen; Qin, Na; Mo, Jiliang; Pan, Yajia; Luo, Dabing

doi:10.1016/j.porgcoat.2020.105745

Cited by 32 publications

(18 citation statements)

References 41 publications

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“…In recent years, different methods have been reported in the literature to develop superhydrophobic surfaces, such as the spray technique [ 44 , 45 ], electrodeposition [ 46 , 47 ], and chemical etching [ 48 , 49 ]. The latter, which consists of a selective and controlled corrosion process, is one of the most promising methods for its industrial application development, due to its simplicity and low manufacturing costs [ 50 , 51 , 52 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Chemical Surface Texturing on the Superhydrophobic Behavior of Micro–Nano-Roughened AA6082 Surfaces

et al. 2021

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Superhydrophobic surfaces on 6082 aluminum alloy substrates are tailored by low-cost chemical surface treatments coupled to a fluorine-free alkyl-silane coating deposition. In particular, three different surface treatments are investigated: boiling water, HF/HCl, and HNO3/HCl etching. The results show that the micro-nano structure and the wetting behavior are greatly influenced by the applied surface texturing treatment. After silanization, all the textured surfaces exhibit a superhydrophobic behavior. The highest water contact angle (WCA, ≈180°) is obtained by HF/HCl etching. Interestingly, the water sliding angle (WSA) is affected by the anisotropic surface characteristics. Indeed, for the HF/HCl and the HNO3/HCl samples, the WSA in the longitudinal direction is lower than the transversal one, which slightly affects the self-cleaning capacity. The results point out that the superhydrophobic behavior of the aluminum alloys surface can be easily tailored by performing a two-step procedure: (i) roughening treatment and (ii) surface chemical silanization. Considering these promising results, the aim of further studies will be to improve the knowledge and optimize the process parameters in order to tailor a superhydrophobic surface with an effective performance in terms of stability and durability.

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Section: Introductionmentioning

confidence: 99%

Effect of Chemical Surface Texturing on the Superhydrophobic Behavior of Micro–Nano-Roughened AA6082 Surfaces

et al. 2021

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“… Sun et al. (2020a) prepared SH aluminum alloy samples by combining high-speed wire discharge machining and short-time chemical etching method with modification treatment.…”

Section: Controlling Ice Core Formationmentioning

confidence: 99%

“… (H) The digital images of water droplet freezing process of smooth aluminum alloy samples (1) and SH aluminum alloy samples (2) with different time at −12°C are presented. Image reprinted with permission from Sun et al. (2020a) .…”

Section: Controlling Ice Core Formationmentioning

confidence: 99%

Superhydrophobic materials used for anti-icing Theory, application, and development

Guo

2021

iScience

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Summary The accumulation of ice will reduce the performance of the base material and lead to all kinds of damage, even a threat to people's life safety. Recent increasing studies suggest that superhydrophobic surfaces (SHSs) originating from nature can remove impacting and condensing droplets from the surface before freezing to subzero temperatures, and it can be seen that hydrophobic/SH coating has good freezing cold resistance. But such anti-icing performances and developments in practical applications are restricted by various factors. In this paper, the mechanism and process of surface icing phenomenon are introduced, as well as how to prevent surface icing on SHS. The development of SH materials in the aspect of anti-icing in recent years is described, and the existing problems in the aspect of anti-icing are analyzed, hoping to provide new research ideas and methods for the research of anti-icing materials.

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“…Nanostructured superhydrophobic surfaces (SHSs) can prevent ice formation by limiting the water contact time. Such properties are purely morphological and thus can be obtained by etching, controlled growth, or lithographic approaches on a broad range of materials regardless of their chemical nature. − In addition, one can treat these surfaces in subsequent steps to increase their performance further (e.g., modification with a molecular monolayer) . However, such rough surfaces are fragile and prone to damage, and they favor heterogeneous ice nucleation and increase the effective ice adhesion area once ice forms …”

Section: Introductionmentioning

confidence: 99%

A Simple Approach for Flexible and Stretchable Anti-icing Lubricant-Infused Tape

Carlotti

Cesini

Mattoli

2021

ACS Appl. Mater. Interfaces

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Unwanted icing has major safety and economic repercussions on human activities, affecting means of transportation, infrastructures, and consumer goods. Compared to the common deicing methods in use today, intrinsically icephobic surfaces can decrease ice accumulation and formation without any active intervention from humans or machines. However, such systems often require complex fabrication methods and can be costly, which limits their applicability. In this study, we report the preparation and characterization of several slippery lubricant-infused porous surfaces (SLIPSs) realized by impregnating with silicone oil a candle soot layer deposited on double-sided adhesive tape. Despite the use of common household items, these SLIPSs showed anti-icing performance comparable to other systems described in the literature (ice adhesion < 20 kPa) and a good resistance to mechanical and environmental damages in laboratory conditions. The use of a flexible and functional substrate as tape allowed these devices to be stretchable without suffering significant degradation and highlights how these systems can be easily prepared and applied anywhere needed. In addition, the possibility of deforming the substrate can “allow” the application of SLIPS technology in mechanical ice removal methodologies, drastically incrementing their performance.

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Robust superhydrophobic aluminum alloy surfaces with anti-icing ability, thermostability, and mechanical durability

Cited by 32 publications

References 41 publications

Effect of Chemical Surface Texturing on the Superhydrophobic Behavior of Micro–Nano-Roughened AA6082 Surfaces

Effect of Chemical Surface Texturing on the Superhydrophobic Behavior of Micro–Nano-Roughened AA6082 Surfaces

Superhydrophobic materials used for anti-icing Theory, application, and development

A Simple Approach for Flexible and Stretchable Anti-icing Lubricant-Infused Tape

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