The effect of superhydrophobic coating composition on the topography and ice adhesion

Wang, Yujie; Zhang, Jinde; Dodiuk, H.; Kenig, S.; Ratto, Jo Ann; Barry, Carol L.; Turkoglu, Sevil; Mead, Joey

doi:10.1016/j.coldregions.2022.103623

Cited by 11 publications

(8 citation statements)

References 68 publications

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“…A concentrated TBAB solution has a strong corrosion effect on Cu and other metals. , The stability of the Cu substrate with a PF/ZSM-5 coating was tested in a TBAB solution (30 wt %). As shown in Figure c, the water contact angle of the PF/ZSM-5 coating decreased from 162° to 154° after soaking for 300 d. However, it was still greater than 150°, meeting the requirement of superhydrophobicity, that is, the water contact angle is larger than 150° and the water sliding angle is smaller than 10°. − The sliding angle increased from 2° to 17°, which indicated that the PF/ZSM-5 surface transformed from a Cassie wet state to a semi-Cassie/Wenzel wet state after prolonged immersion. Figure d shows photographs of the surface morphology of the samples after soaking in TBAB solution for 300 d. The surface of the Cu plate was seriously damaged due to the generation of corrosion products, while brown corrosion products were observed on the GF-2200 surface .…”

Section: Resultsmentioning

confidence: 89%

Multifunctional Amphiphobic Coating toward Ultralow Interfacial Adhesion of Hydrates

Zhang

Fan

et al. 2023

Langmuir

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Hydrate adhesion is a challenging issue in some practical applications. However, most current anti-hydrate coatings fail to maintain their properties when subject to crude oil and corrosive contaminants. In addition, the effect of surface properties on the nucleation of hydrates is still unexplored from a microscopic perspective. In this study, a multifunctional amphiphobic PF/ZSM-5 coating consisting of 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane modified ZSM-5 zeolite (F/ZSM-5) and adhesive polyethersulfone was fabricated by the spraying method. The interfacial nucleation and adhesion of hydrates on substrates were studied from a microscopic perspective. The coating exhibited excellent repellencies to various liquids, including water, edible oil, liquid paraffin, vacuum pump oil, n-hexadecane, and crude oil. The tetrabutylammonium bromide (TBAB) hydrate is readily nucleated on the bare Cu surface. In contrast, the coated substrate effectively inhibited the hydrate nucleation on the surface and even reduced the adhesion force to 0 mN/m. Furthermore, this coating was fouling- and corrosion-resistant and can maintain an ultralow hydrate adhesion force even after immersion in crude oil or TBAB solution for 20 and 300 d, respectively. The durable anti-hydrate performance of the coating was attributed mainly to the unique architecture and excellent amphiphobic properties enabling stable air cushions between the solid–liquid interface.

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Section: Resultsmentioning

confidence: 89%

Multifunctional Amphiphobic Coating toward Ultralow Interfacial Adhesion of Hydrates

Zhang

Fan

et al. 2023

Langmuir

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“…[ 152 ] Unlike Lotus leaves, pitcher plants utilize micro/nanostructures to lock in a low surface free energy intermediary lubricating liquid that presents itself as an ultra‐smooth lubricating layer against impinging liquids and repels almost any immiscible liquids. [ 151–153 ] Although, the interface is an ultra‐smooth surface, prior studies have clearly demonstrated the importance of well‐matched solid and liquid surface free energies, length scale of underlying textures (micro/nanostructures) in maintaining a highly stable surface, where liquid fills the space between textures, forming a continuous film. [ 154 ] Essentially, a robust and stable SLIPS is accomplished by satisfying the three important criteria as outlined below: (i) the low surface free energy lubricating liquid and the impinging liquid must be immiscible; (ii) the chemical affinity between the low surface free energy lubricating liquid and the solid should be greater than that between the impinging liquid and the solid; and (iii) the solid surface should ideally be textured with nanostructures to retain infused low surface free energy lubricating liquids through capillary forces.…”

Section: Fabrication Methodsmentioning

confidence: 99%

Advanced polymer processing technologies for micro‐ and nanostructured surfaces: A review

Shivaprakash

Banerjee

et al. 2023

Polymer Engineering & Sci

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Functional surfaces with attractive properties, such as superhydrophobicity and omniphobicity often rely on the synergy between intrinsic material properties and dual scale micro‐ and nano‐hierarchical structures for achieving desired wettability. Historically, engineered liquid repellent surfaces have attracted a great deal of interest from academia and industry due to their broad application prospects. Hence, for several years, there have been significant scientific efforts by researchers exploring state of the art manufacturing technologies that are efficient and yet cost effective to produce functional liquid repellent surfaces at an industrial scale. This technical review summarizes the various advanced and state of the art polymer processing technologies employed to fabricate the micro‐ and nanostructured polymer surfaces, with a special focus given to superhydrophobic and omniphobic applications. Here, we discuss the merits and limitations of each fabrication methods available for micro‐ and nanostructuring of polymer‐based surfaces. In addition, an attempt has been made to provide insight into the relationship between geometry of micro/nanostructures (size and shape) and intrinsic wettability on liquid repellency. A special section has been devoted to feature and document all commercialization efforts, including various commercially available products that were developed in the past decade. Finally, outlook and the development trend in the polymer micro‐ and nanostructured surfaces are highlighted to lead future research.

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“…The measurement method is the sessile drop method: (1) WCA: put a small amount of kaolinite/superhydrophobic kaolinite powder on a glass slide, cover it with another glass slide, put a 100 g weight on it for 5 min to flatten and compact the kaolinite/superhydrophobic kaolinite, select five locations on the sample surface and drop 4 μL water droplets, read WCA data, and take the average value . (2) WSA: drop 10 μL of water droplets on the surface of the prepared superhydrophobic kaolinite sample. , After the water droplets are stable on the sample surface, the sample was tilted at a rate of 60°/min until the water droplets roll or slide. The angle between the sample and the horizontal plane is WSA. , …”

Section: Characterization Methodsmentioning

confidence: 99%

“…54 (2) WSA: drop 10 μL of water droplets on the surface of the prepared superhydrophobic kaolinite sample. 55,56 After the water droplets are stable on the sample surface, the sample was tilted at a rate of 60°/ min until the water droplets roll or slide. The angle between the sample and the horizontal plane is WSA.…”

Section: ■ Characterization Methodsmentioning

confidence: 99%

Superhydrophobicity Mechanism and Nanoscale Profiling of PDMS-Modified Kaolinite Nanolayers via Ab Initio-MD Simulation and Atomic Force Microscopy Study

Chen

et al. 2023

Langmuir

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This study aimed to investigate the superhydrophobic mechanism of kaolinite particles modified with poly(dimethylsiloxane) (PDMS), which has potential as a superior hydrophobic coating. The study employed a combination of density functional theory (DFT) simulation modeling, characterization of the chemical properties and microstructure, contact angle measurements, and chemical force spectroscopy of atomic force microscopy. The results showed successful PDMS grafting onto the kaolinite surface, resulting in micro- and nanoscale roughness and a contact angle of 165°, indicating a successful superhydrophobic effect. The study also identified the mechanism of the hydrophobic interaction through two-dimensional micro- and nanoscale hydrophobicity images, highlighting the potential of this approach for developing new hydrophobic coatings.

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The effect of superhydrophobic coating composition on the topography and ice adhesion

Cited by 11 publications

References 68 publications

Multifunctional Amphiphobic Coating toward Ultralow Interfacial Adhesion of Hydrates

Multifunctional Amphiphobic Coating toward Ultralow Interfacial Adhesion of Hydrates

Advanced polymer processing technologies for micro‐ and nanostructured surfaces: A review

Superhydrophobicity Mechanism and Nanoscale Profiling of PDMS-Modified Kaolinite Nanolayers via Ab Initio-MD Simulation and Atomic Force Microscopy Study

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