Applications of superhydrophobic coatings in anti-icing: Theory, mechanisms, impact factors, challenges and perspectives

Li, Wen; Zhan, Yanlong; Yu, Sirong

doi:10.1016/j.porgcoat.2020.106117

Cited by 141 publications

(96 citation statements)

References 131 publications

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“…From the thermodynamic point of view, the ice phase is in a stable state. This transition process needs to use supersaturation and/or supercooling as driving forces to overcome the existing potential barrier ( Li et al., 2021 ; Varanasi et al., 2009 ), as depicted in Figure 3 . In the known research, ice formation is a complex phase transition phenomenon, and nucleation is the most basic and critical step in the process of water ice formation.…”

Section: Mechanism Of Ice Freezingmentioning

confidence: 99%

“…In the known research, ice formation is a complex phase transition phenomenon, and nucleation is the most basic and critical step in the process of water ice formation. During nucleation, the liquid water molecules with higher entropy will be transformed into crystalline solid ice with lower entropy ( Li et al., 2021 ), and the initial embryo of the crystal will form in the supercooled/supersaturated parent phase. Whether the crystalline phase can form and the mass of the final crystal depends on the nucleation process to a great extent ( Lin et al., 2018 ).…”

Section: Mechanism Of Ice Freezingmentioning

confidence: 99%

“…The following is a simple analysis of the two existing mechanisms.

Figure 3 Schematic diagram of mechanism of ice formation ( r and r c are the size radius and critical size radius of an embryo, respectively) Image reprinted with permission from Li et al. (2021) .…”

Section: Mechanism Of Ice Freezingmentioning

confidence: 99%

“…According to Equation 4 , when the air in the groove is completely filled with liquid,

, Cassie's equation is transformed into Wenzel's equation. At the same time, an SHS with large CA can be obtained by minimizing the contact fraction of solids ( Li et al., 2021 ).…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Mechanism Of Ice Freezingmentioning

confidence: 99%

Section: Mechanism Of Ice Freezingmentioning

confidence: 99%

“…The following is a simple analysis of the two existing mechanisms.

Section: Mechanism Of Ice Freezingmentioning

confidence: 99%

“…According to Equation 4 , when the air in the groove is completely filled with liquid,

, Cassie's equation is transformed into Wenzel's equation. At the same time, an SHS with large CA can be obtained by minimizing the contact fraction of solids ( Li et al., 2021 ).…”

Section: Introductionmentioning

confidence: 99%

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

Guo

2021

iScience

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“…Anti-icing: Anti-icing is mainly approached with the development of coatings with the ability to act as passive anti-ice surfaces [129]. In most cases, these coatings are constructed from hydrophobic materials that prevent water from remaining on their surfaces and, consequently, reduce ice formation.…”

Section: Protection Against Icingmentioning

confidence: 99%

A Comprehensive Analysis of Wind Turbine Blade Damage

2021

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The scope of this article is to review the potential causes that can lead to wind turbine blade failures, assess their significance to a turbine’s performance and secure operation and summarize the techniques proposed to prevent these failures and eliminate their consequences. Damage to wind turbine blades can be induced by lightning, fatigue loads, accumulation of icing on the blade surfaces and the exposure of blades to airborne particulates, causing so-called leading edge erosion. The above effects can lead to damage ranging from minor outer surface erosion to total destruction of the blade. All potential causes of damage to wind turbine blades strongly depend on the surrounding environment and climate conditions. Consequently, the selection of an installation site with favourable conditions is the most effective measure to minimize the possibility of blade damage. Otherwise, several techniques and methods have already been applied or are being developed to prevent blade damage, aiming to reduce damage risk if not able to eliminate it. The combined application of damage prevention strategies with a SCADA system is the optimal approach to adequate treatment.

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