Fabrication of robust and versatile superhydrophobic coating by two-step spray method: An experimental and molecular dynamics simulation study

Daneshmand, Hamid; Sazgar, Amjad; Araghchi, Masoud

doi:10.1016/j.apsusc.2021.150825

Cited by 45 publications

(14 citation statements)

References 46 publications

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“…Especially, the absorption peak at 1700 cm −1 was the carbonyl (C�O stretching) according to the FTIR spectrum of S-SiO 2 , demonstrating the destabilization of the double bond in the carbonyl and interaction with −OH group on the surface of SiO 2 . 44 The above results demonstrated the successful grafting of low-surface-energy groups on the SiO 2 NPs surface. The surface morphologies of the SHS and SLIPS were investigated by 3D surface profile.…”

Section: Fabrication Of the Shs And Slipsmentioning

confidence: 59%

“…Similarly, the absorption bands in Figure B showed that the SiO 2 NPs were also successfully modified by SA. Especially, the absorption peak at 1700 cm –1 was the carbonyl (CO stretching) according to the FTIR spectrum of S-SiO 2 , demonstrating the destabilization of the double bond in the carbonyl and interaction with −OH group on the surface of SiO 2 . The above results demonstrated the successful grafting of low-surface-energy groups on the SiO 2 NPs surface.…”

Section: Resultsmentioning

confidence: 99%

“…Preparation of SA-Modified SiO 2 Suspensions. Following the method of Daneshmand et al, 44 0.1 g of SA was first ultrasonicated in 10 mL of anhydrous ethanol for 10 min. Then, 0.3 g of dual-sized SiO 2 NPs (15 ± 5 and 50 ± 5 nm, 1:1) was dispersed into the above ethanol solution and ultrasonicated for 1 h to react adequately.…”

Section: Methodsmentioning

confidence: 99%

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Infusing Silicone and Camellia Seed Oils into Micro-/Nanostructures for Developing Novel Anti-Icing/Frosting Surfaces for Food Freezing Applications

Zhu

Liang

Sun

2023

ACS Appl. Mater. Interfaces

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Undesired ice/frost formation and accretion often occur on food freezing facility surfaces, lowering freezing efficiency. In the current study, two slippery liquid-infused porous surfaces (SLIPS) were fabricated by spraying hexadecyltrimethoxysilane (HDTMS) and stearic acid (SA)-modified SiO 2 nanoparticles (NPs) suspensions, separately onto aluminum (Al) substrates coated with epoxy resin to obtain two superhydrophobic surfaces (SHS), and then infusing food-safe silicone and camellia seed oils into the SHS, respectively, achieving anti-frosting/icing performance. In comparison with bare Al, SLIPS not only exhibited excellent frost resistance and defrost properties but also showed ice adhesion strength much lower than that of SHS. In addition, pork and potato were frozen on SLIPS, showing an extremely low adhesion strength of <10 kPa, and after 10 icing/deicing cycles, the final ice adhesion strength of 29.07 kPa was still much lower than that of SHS (112.13 kPa). Therefore, the SLIPS showed great potential for developing into robust anti-icing/frosting materials for the freezing industry.

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Section: Fabrication Of the Shs And Slipsmentioning

confidence: 59%

Section: Resultsmentioning

confidence: 99%

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Infusing Silicone and Camellia Seed Oils into Micro-/Nanostructures for Developing Novel Anti-Icing/Frosting Surfaces for Food Freezing Applications

Zhu

Liang

Sun

2023

ACS Appl. Mater. Interfaces

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“…Daneshmand et al reported stearic acid-coated Al 2 O 3 nanoparticles dispersed in either ethanol, methanol, or 2-propanol, which were then spray coated onto microscope glass substrates in a two-step process to ultimately produce a superhydrophobic film. 18 However, the use of a combination of fatty acids to achieve robust superhydrophobic films in a one-step process has not been studied.…”

Section: ■ Introductionmentioning

confidence: 99%

A Single-Step Route to Robust and Fluorine-Free Superhydrophobic Coatings via Aerosol-Assisted Chemical Vapor Deposition

et al. 2023

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Robust fluorine-free superhydrophobic films were produced from a mixture of two fatty acids (stearic acid and palmitic acid), SiO 2 nanoparticles, and polydimethylsiloxane. These simple and nontoxic compounds were deposited via aerosol-assisted chemical vapor deposition to provide the rough topography required for superhydrophobicity, formed through island growth of the aggregates. The optimum conditions for well-adhered superhydrophobic films produced films with a highly textured morphology, which possessed a water contact angle of 162 ± 2°and a sliding angle of <5°. Superhydrophobicity was maintained after ultraviolet exposure (14 days at 365 nm), heat treatment (5 h at 300 °C and 5 h at 400 °C), 300 tape peel cycles, and exposure to ethanol and toluene (5 h each).

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“…Therefore, the research and development of superhydrophobic materials is of great significance to daily life and industrial development. The current method of forming a superhydrophobic surface is to construct a micronano structure on the surface with low surface energy or modify the micronano structure with low surface energy substances. − At present, the methods for preparing superhydrophobic surfaces mainly include: the layer-by-layer self-assembly method, spraying method, template method, chemical vapor deposition method, sol–gel method, etching method, spin-coating method, and so on. For example, Chi and others used hydrophobic silicon dioxide particles and organosilane binder to prepare an antireflection coating with mechanical firmness and self-cleaning performance.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a Superhydrophobic Surface by a One-Step Powder Pressing Method with Liquid Silicone Rubber As the Carrier

et al. 2023

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The preparation methods of the superhydrophobic surface play an important role in its application, but most of the existing preparation methods are complicated in operation, high in cost, and polluting to the environment. In order to find a simple, rapid, lowcost, and nonenvironmentally polluting preparation method of the superhydrophobic surface, this paper used liquid silicone rubber as the carrier. Before the liquid silicone rubber was nearly cured, it was evenly covered with a layer of silicon dioxide powder, and then 5 N weight was used to compact the powder on the rubber surface, so that the superhydrophobic surface was quickly formed on its surface. The wettability, bouncing performance, self-cleaning performance, and bending durability of liquid silicone rubber before and after treatment were compared. The results show that the static contact angle and rolling angle of the liquid silicone rubber after powder pressing were 158.22 ± 2.01°and 1.00 ± 0.50°, respectively. Moreover, the superhydrophobic surface formed by the powder pressing method had good self-cleaning performance, high temperature resistance, bending resistance, and excellent droplet bounce performance. The strategy of preparing a superhydrophobic surface by a one-step powder pressing method may be applied to the preparation of the superhydrophobic surface on a large scale.

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Fabrication of robust and versatile superhydrophobic coating by two-step spray method: An experimental and molecular dynamics simulation study

Cited by 45 publications

References 46 publications

Infusing Silicone and Camellia Seed Oils into Micro-/Nanostructures for Developing Novel Anti-Icing/Frosting Surfaces for Food Freezing Applications

Infusing Silicone and Camellia Seed Oils into Micro-/Nanostructures for Developing Novel Anti-Icing/Frosting Surfaces for Food Freezing Applications

A Single-Step Route to Robust and Fluorine-Free Superhydrophobic Coatings via Aerosol-Assisted Chemical Vapor Deposition

Preparation of a Superhydrophobic Surface by a One-Step Powder Pressing Method with Liquid Silicone Rubber As the Carrier

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