Spray-Deposition of an Organic/Inorganic Blend for Fabrication of a Superhydrophobic Surface: Effect of Admixing with Silica Aerogel and Modified Silica Nanoparticles

Fallah, Mehrdad; Ghashghaee, Mohammad; Rabiee, Ahmad; Ershad‐Langroudi, Amir

doi:10.1134/s2070205118050064

Cited by 18 publications

(3 citation statements)

References 36 publications

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“…6 The materials those exhibit one of the above-mentioned wetting conditions are most widely used for self-cleaning, oil/water separating, anti-dust, anti-mist, and energy-efficient transporter of fluid applications. 7,8 The self-cleansing property is particularly necessary for medical operations to avoid contaminations. This characteristic of self-cleansing is an important parameter for optical properties as well.…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic properties and chemical state analysis of wear resistant coating prepared by electrical discharge process

Tyagi

Das

Mandal

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Electrical discharge coating (EDC) process has been used to prepare a corrosion and wear resistant super-hydrophobic coating on the steel substrate. The coating process has been carried out by using three types of green compact tool electrodes (WS2/Cu, MoS2/Cu, and hBN/Cu). In these tool electrodes, powder mixing ratios (40:60, 50:50, 60:40) are varied, and their effect on coating characteristics (surface morphology, wettability, corrosion, and wear behaviour) has been studied. In this investigation, the morphology and chemical state of coating has been observed by using a scanning electron microscopy (SEM) and X-ray photoemission spectroscopy (XPS). SEM images of the applied coating show a porous and hierarchical structure. This hierarchical structure helps in raising the contact angle (CA) to 165.6° (super-hydrophobic state). The XPS analysis reveals that the deposition of solid lubricants takes place with their negligible disintegration into non-lubricating compounds. In addition, the prepared coating exhibits excellent resistance to wear and corrosion.

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Section: Introductionmentioning

confidence: 99%

Hydrophobic properties and chemical state analysis of wear resistant coating prepared by electrical discharge process

Tyagi

Das

Mandal

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…To date, introducing of adhesive resin like polyurethane and polydimethylsiloxane (PDMS) into the coating to protect the hierarchical structure has been proven to be an effective method to improve the mechanical properties of the coating [13][14][15][16][17][18][19][20][21]. Fu et al prepared a fluorine-modified polyurethane through a two-step thiol click reaction, and blended it with silica nanoparticles to prepare a superhydrophobic coating with high mechanical stability.…”

Section: Introductionmentioning

confidence: 99%

Durable, self-cleaning and anti-fouling superhydrophobic coating based on double epoxy layer

Li¹,

Liu²,

Zhang³

et al. 2022

Mater. Res. Express

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The practical application of superhydrophobic coatings has been greatly restricted due to the complicated preparation and fragile hierarchical structures on the surface. In this study, we prepared a robust superhydrophobic coating with a double-layer structure via a low-cost and facile method, adhering the non-wettability layer composed of silica nanoparticles and fluorine-modified epoxy resin to a binder resin layer on aluminium. The fluorine-modified epoxy resin with low surface energy can fix the silica nanoparticles after curing and cross-link with the adhesive layer. When the SiO2 content in the surface layer is 40%, the water contact angle (WCA) of the coating is 162°, and the sliding angle (SA) is 2°. In the mechanical performance test, the durable coating can remain superhydrophobic even after 260 cycles of friction or 160 cycles of tape peeling. In addition, the superhydrophobic coating with self-cleaning and anti-fouling properties also has the performance of acid-base solution resistance. Hence, the combination of the rough layer and the adhesive layer makes the practical application of artificial superhydrophobic coatings possible.

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“…Also, by comparing this coating with commercial siloxane-based resins, it is concluded that colour change of the synthetic coating after the weathering test is less than the commercial material, but its degree of yellowing is higher. The organic–inorganic nanocomposites performance as a hard coating on polymers as well as appropriate tribological characteristics, anti-abrasive, anti-scratch, superhydrophobicity, and weathering resistance [45, 46]. Additionally, the modification of nanocomposite coating based on fluorinated and silazane-based can produce a variety of desired properties, such as hydrophobicity and anti-graffiti [47].…”

Section: Introductionmentioning

confidence: 99%

Cultural heritage protection via hybrid nanocomposite coating

Azadi

Parsimehr

Ershad‐Langroudi

2020

Plastics, Rubber and Composites

Self Cite

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Historical constructions are exposed to weathering conditions and atmospheric pollution for many years which demolish the historical material as well as dramatically influence their visual aspects. Nowadays, the development of conservative coatings with weather-resistant, self-cleaning, and hydrophobic properties is a promising challenge for carbonate stones. In this study, a simple synthesis route is developed to obtain organic-inorganic hybrid nanocomposites. The main components of the acrylate coatings are methyl methacrylate, 3-(trimethoxysilyl)propyl methacrylate (TMSM). Tetraethyl orthosilicate (TEOS) is added to the coating to improve the thermal resistance of the coating. Perfluorooctyl-trichlorosilane (FOTCS) is added to the coating to improve the weathering resistance and hydrophobic behaviour of the coating. Also, titanium dioxide (TiO 2 ) is added to improve the thermal resistance and photocatalytic feature of the coating. The results confirmed significant enhancement in contact angle and weathering resistance that originates from adding an organofluorine component in the structure of the coating. A hybrid coating includes acrylate monomers as the binder and chemical substances include an organosilane (TEOS), fluorinated silane (FOTCS) and titania nanoparticles (TiO 2 ) has appropriate properties like thermal resistance, mechanical resistance, weathering resistance, hydrophobicity, and selfcleaning that can be used as a protective coating for the precious stone-made cultural heritages.

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Spray-Deposition of an Organic/Inorganic Blend for Fabrication of a Superhydrophobic Surface: Effect of Admixing with Silica Aerogel and Modified Silica Nanoparticles

Cited by 18 publications

References 36 publications

Hydrophobic properties and chemical state analysis of wear resistant coating prepared by electrical discharge process

Hydrophobic properties and chemical state analysis of wear resistant coating prepared by electrical discharge process

Durable, self-cleaning and anti-fouling superhydrophobic coating based on double epoxy layer

Cultural heritage protection via hybrid nanocomposite coating

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