Facile UV-curable fabrication of robust, anti-icing superhydrophobic coatings based on polyurethane

Lv, Lina; Hua, Liu; Zhang, Wen; Chen, Junying; Liu, Zuozhen

doi:10.1016/j.matlet.2019.126653

Cited by 54 publications

(20 citation statements)

References 11 publications

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“…To date, three main techniques have been developed to improve the mechanical stability of SH materials: (1) doping some flexible polymer substrates to improve the mechanical stability of SHS coatings, such as acrylic resin ( Dong et al., 2019 ), polydimethylsiloxane (PDMS) ( Liu et al., 2017 ), silicone adhesives ( Li et al., 2016 ), polyurethane (PU) ( Lv et al., 2020 ), and epoxy resin ( Liu et al., 2019b ). The introduction of these polymer substrates can not only play a role in adhesion, improving the adhesion between nanoparticles and matrix, but also contribute to anti-wear and scratch energy dissipation, improving the mechanical durability of SH coating ( Shen et al., 2019b ; Zhang et al., 2019b ).…”

Section: The Practical Applicationsmentioning

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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Section: The Practical Applicationsmentioning

confidence: 99%

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

Guo

2021

iScience

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“…Superhydrophobic surface offer outstanding self-cleaning, [1][2][3][4][5] antifog, [6][7][8] anti-icing, [9,10] anticorrosion, [11,12] and oil-water separation [13][14][15] properties and are used in a wide variety of applications. Strategies for the fabrication of superhydrophobic surfaces include etching, [16][17][18] template techniques, [19][20][21] sol-gel processing, [22,23] chemical vapor deposition (CVD), [24,25] electrostatic spinning, [26][27][28][29] spraying, [30,31] and self-assembly.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in the Fabrication and Characteristics of Self‐Repairing Superhydrophobic Surfaces

Liu

Han

et al. 2021

Adv Materials Inter

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the liquid and the internal force of the system reaches equilibrium, the liquid cannot continue to wet the solid surface to minimize the energy of the system. Thus, wetting occurs more easily when the low surface free energy components are lost from the surface. The micro-nanostructure on the surface affects the hydrophobicity of a surface because, according to the Wenzel and Cassie-Baxter theory, a rough surface has higher wettability. [34,35] However, the chemical components and hierarchical structures on the surface are easily damaged in many environments and improved the durability relies on enhancing the stability of both.Damage to superhydrophobic surfaces is broadly categorized as either chemical, micro-nanostructural, or a combination thereof (Figure 1). Damage to chemical components can occur via exposure to ultraviolet (UV) light, strong acid or alkali, or O 2 plasma. This damage can lead to a loss of a surface's original superhydrophobicity. However, this damage may be repaired in various ways, thereby regaining the chemical components and, in turn, superhydrophobicity. Physical abrasion can also damage chemical components on the surface and lead to the loss of superhydrophobicity. In this case, superhydrophobicity can be regained by stimulating the migration of chemical components toward the surface. Damage to the micro-nanostructure can occur when a superhydrophobic surface is scratched or cut. This damage can be repaired via swelling of the polymer, flow of the melt polymer, or reversible chemical bonding to restore the surface structure. Due to the diversity of environmental damages, a combination of chemical and micro-nanostructural damage is most likely to occur. This complex damage can only be repaired by combining strategies to address both types.The self-repairing functions of various living organisms have inspired research into surfaces with self-repairing properties for enhanced durability. [36][37][38] Although many papers have reported self-repairing superhydrophobic coatings, [36][37][38][39] few have reported the integration of fabrication methods, damage categories, repair methods, and the respective advantages and disadvantages. This review provides an overview of the recent progress in the fabrication and characteristics of self-repairing superhydrophobic surfaces, including chemical component, physical structure, and combined repair. The application of superhydrophobic coatings is briefly described, and the critical limitations regarding self-repairing superhydrophobic coatings are highlighted. Further, perspectives on future research and development are provided.Superhydrophobic surfaces show promise in a wide variety of potential applications that require self-cleaning, antifogging, anti-icing, anticorrosion, and antifouling properties. However, these surfaces often exhibit poor durability against physical or chemical damage, such as deep cut, ultraviolet irradiation, and oxygen plasma treatment. Superhydrophobic surfaces with self-repairing properties have been recently developed ...

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“…The proposed modifications led to the reduction of the adhesion force of the ice up to 80% with respect to the original paint. In another work [ 31 ], the authors measured the water contact angle and sliding angle of in-house synthesized fluorinated polyurethane after exposure in −10 °C. It was presented that the superhydrophobicity of the coating was still achieved after 100 h at −10 °C.…”

Section: Introductionmentioning

confidence: 99%

A Wind Tunnel Experimental Study of Icing on NACA0012 Aircraft Airfoil with Silicon Compounds Modified Polyurethane Coatings

et al. 2021

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Ice formation on the aerodynamic surfaces of an aircraft is regarded as a major problem in the aerospace industry. Ice accumulation may damage parts, sensors and controllers and alter the aerodynamics of the airplane, leading to a range of undesired consequences, including flight delays, emergency landings, damaged parts and increased energy consumption. There are various approaches to reducing ice accretion, one of them being the application of icephobic coatings. In this work, commercially available polyurethane-based coatings were modified and deposited on NACA 0012 aircraft airfoils. A hybrid modification of polyurethane (PUR) topcoats was adopted by the addition of nanosilica and three-functional spherosilicates (a variety of silsesqioxane compound), which owe their unique properties to the presence of three different groups. The ice accretion on the manufactured nanocomposites was determined in an icing wind tunnel. The tests were performed under three different icing conditions: glaze ice, rime ice and mixed ice. Furthermore, the surface topography and wetting behavior (static contact angle and contact angle hysteresis) were investigated. It was found that the anti-icing properties of polyurethane nanocomposite coatings strongly depend on the icing conditions under which they are tested. Moreover, the addition of nanosilica and spherosilicates enabled the reduction of accreted ice by 65% in comparison to the neat topcoat.

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Facile UV-curable fabrication of robust, anti-icing superhydrophobic coatings based on polyurethane

Cited by 54 publications

References 11 publications

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

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

Recent Progress in the Fabrication and Characteristics of Self‐Repairing Superhydrophobic Surfaces

A Wind Tunnel Experimental Study of Icing on NACA0012 Aircraft Airfoil with Silicon Compounds Modified Polyurethane Coatings

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