Wettability of modified silica layers deposited on glass support activated by plasma

Terpiłowski, Konrad; Rymuszka, Diana; Goncharuk, E.V.; Sulym, Iryna; Gun’ko, Vladimir M.

doi:10.1016/j.apsusc.2015.06.200

Cited by 22 publications

(12 citation statements)

References 53 publications

(55 reference statements)

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“…The wettability of a material is often attributed to a low surface free energy and a high degree of roughness30. The ‘Lotus effect’ explains how hierarchal structures with micro- and nanoscale roughness can lead to superhydrophobicity and an extreme non-stick and water-repellent surface28.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Superhydrophobic, Self-cleaning NIR-reflective Silica Nanoparticles

Deepa

Reed

Annamalai

et al. 2016

Sci Rep

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Multifunctional coatings offer many advantages towards protecting various surfaces. Here we apply aggregation induced segregation of perylene diimide (PDI) to control the surface morphology and properties of silica nanoparticles. Differentially functionalized PDI was incorporated on the surface of silica nanoparticles through Si-O-Si bonds. The absorption and emission spectra of the resultant functionalised nanoparticles showed monomeric or excimeric peaks based on the amounts of perylene molecules present on the surface of silica nanoparticles. Contact angle measurements on thin films prepared from nanoparticles showed that unfunctionalised nanoparticles were superhydrophilic with a contact angle (CA) of 0°, whereas perylene functionalised silica particles were hydrophobic (CA > 130°) and nanoparticles functionalised with PDI and trimethoxy(octadecyl)silane (TMODS) in an equimolar ratio were superhydrophobic with static CA > 150° and sliding angle (SA) < 10°. In addition, the near infrared (NIR) reflectance properties of PDI incorporated silica nanoparticles can be used to protect various heat sensitive substrates. The concept developed in this paper offers a unique combination of super hydrophobicity, interesting optical properties and NIR reflectance in nanosilica, which could be used for interesting applications such as surface coatings with self-cleaning and NIR reflection properties.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Superhydrophobic, Self-cleaning NIR-reflective Silica Nanoparticles

Deepa

Reed

Annamalai

et al. 2016

Sci Rep

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“…Nearly all engineering surfaces are rough and contain micro‐flaws and defects. These surface features can pin the contact line of a droplet on surfaces . Considering the fact that characteristics of surface topography are strongly affected by the manufacturing methods, research is needed to better understand the migration behavior of lubricants on surfaces with provision for different roughness and features.…”

Section: Introductionmentioning

confidence: 99%

The thermocapillary migration on rough surfaces

Dai

Khonsari

et al. 2018

Lubrication Science

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In tribo‐system, thermal gradients will drive the liquid lubricant to migrate from warm to cold regions, resulting in starved lubrication. This study reports an experimental investigation on the influence of surface topography on the migration behavior of paraffin oil lubricants. Experimental results are provided for specimens treated by polishing, shot‐blasting, and sandpaper grinding techniques. 3D surface parameters of average surface roughness Sa and developed interfacial area ratio Sdr are measured via a 3D optical microscope, and the influences on migration behavior are discussed. Experimental results demonstrate that shot‐blasting process is an effective approach to impede the thermocapillary migration, and that decreasing surface roughness will contribute to the obstruction effect. A particular attention is paid to the inherent correlation of the migration capacity with the contact angle and surface free energy.

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“…However, the introduction of a larger amount of WPP leads to a smoother surface (profilometer) but with a significant amount of hydrophobic groups. These groups are more responsible for wettability than surface structure (Terpiłowski et al , ). Madadlou et al () emphasise that the inter‐particle and repulsive forces such as electrostatic and hydrophobic interactions affect the surface properties.…”

Section: Resultsmentioning

confidence: 99%

The effect of native and polymerised whey protein isolate addition on surface and microstructural properties of processed cheeses and their meltability determined by Turbiscan

Nastaj

Terpiłowski

Sołowiej

2020

Int J of Food Sci Tech

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The aim of this paper was to investigate the effect of whey protein isolate (WPI) and polymerised whey protein isolate (WPP) addition on physicochemical properties of processed cheese with partial fat replacement. Surface properties were determined by advancing (h a ) and receding (h r ) contact angles, apparent free surface energy (c s ). Roughness measurements, cheese meltability and Turbiscan Stability Index (TSI) were evaluated by Turbiscan. Higher WPP concentrations produced the more hydrophobic surfaces of the samples. Conversely, increase in WPI addition promoted the hydrophilic cheese surfaces. The effect of roughness was much larger for samples containing WPI. The increase in protein addition caused a decrease in meltability and an increase in stability of cheeses. The optical and confocal images have proved that cheeses with WPP demonstrated more packed and denser structure in comparison to samples with WPI.Surface properties of processed cheese M. Nastaj et al.

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Wettability of modified silica layers deposited on glass support activated by plasma

Cited by 22 publications

References 53 publications

Synthesis and Characterization of Superhydrophobic, Self-cleaning NIR-reflective Silica Nanoparticles

Synthesis and Characterization of Superhydrophobic, Self-cleaning NIR-reflective Silica Nanoparticles

The thermocapillary migration on rough surfaces

The effect of native and polymerised whey protein isolate addition on surface and microstructural properties of processed cheeses and their meltability determined by Turbiscan

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