Fabrication of superhydrophobic and oleophobic sol–gel nanocomposite coating

Lakshmi, R.V.; Bharathidasan, T.; Bera, Parthasarathi; Basu, Bharathibai J.

doi:10.1016/j.surfcoat.2012.03.044

Cited by 127 publications

(52 citation statements)

References 43 publications

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“…It is important to mention that the mechanical properties of the superhydrophobic coatings are very important for their uses against surface erosion, friction as well as corrosion protection [31], [32], [33] and [34]. The typical hardness of the superhydrophobic coatings varies in the range of 2H to 9H and their adhesion strength is…”

Section: Methodsmentioning

confidence: 99%

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Corrosion resistance properties of superhydrophobic copper surfaces fabricated by one-step electrochemical modification process

Huang

Sarkar

Gallant

et al. 2013

Applied Surface Science

124

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Highlights• Superhydrophobic copper surfaces by a one-step electrochemical modification process in an ethanolic stearic acid solution.• Analysis of the corrosion properties of as-received, hydrophobic and superhydrophobic copper surfaces.• The corrosion resistance of the superhydrophobic surface is found to be 1220 kΩ cm 2 as compared to as-received bare copper surface 1 kΩ cm 2 . AbstractSuperhydrophobic copper surfaces have been prepared by a one-step electrochemical modification process in an ethanolic stearic acid solution. In this work, the corrosion properties of hydrophobic copper surface and superhydrophobic copper surfaces were analyzed by means of electrochemical analyses and compared with that of as-received bare copper substrate. The decrease of corrosion current density (icorr) as well as the increase of polarization resistance (Rp) obtained from potentiodynamic polarization curves revealed that the superhydrophobic film on the copper surfaces improved the corrosion resistance performance of the copper substrate.Graphical Abstract

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Section: Methodsmentioning

confidence: 99%

“…approximately 5B [34]. Keeping these important applications in mind, have carried out the adhesion test using the same experimental set up as described by Lakshmi et al…”

Section: Methodsmentioning

confidence: 99%

Corrosion resistance properties of superhydrophobic copper surfaces fabricated by one-step electrochemical modification process

Huang

Sarkar

Gallant

et al. 2013

Applied Surface Science

124

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“…No obstante, dichos productos, ya sean añadidos durante o después del proceso de curado, no están logrando los beneficios ofrecidos ni las necesidades de la industria de la construcción. En efecto, se han encontrado problemas asociados con una inadecuada aplicación, degradación provocada por la exposición constante a los rayos UV, incompatibilidad química y por tanto pérdida de la adherencia entre éste y el sustrato (Lakshmi et al,2012;Zhu et al, 2016;Zhu et al, 2013). Por lo que, se ha generado una amplia variedad de investigaciones durante las últimas décadas, debido principalmente al impacto económico causado por el problema de durabilidad, donde se han propuesto una variedad de métodos para mejorar las ECR y que estas sean más duraderas.…”

Section: Introductionunclassified

Tratamiento superficial con nanopartículas base silicio inducido durante el curado: Efecto en la durabilidad de materiales base cemento portland

Cruz-Moreno

Miguel

Vivián

et al. 2017

Revista de la Asociación Latinoamericana de Control de Calidad,

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El efecto de la introducción de nanopartículas base silicio (NBS) preparadas por sol-gel en la permeabilidad de materiales base cemento portland fue estudiado. La introducción de NBS en morteros fabricados con una relación a/c de 0.65 fue inducida durante el curado por 72h, utilizando suspensión de [NBS]=0.1% vs. el volumen del agua. Posteriormente, las muestras siguieron un periodo de inmersión en agua potable con el fin de promover la reacción de la NBS con la matriz cementante y la resistividad fue medida frecuentemente. Después, fueron expuestos en ambientes con Cl- o CO2. Los resultados indicaron una disminución en la penetración de estos agresivos y un incremento de la resistividad en los especímenes tratados; por ende un incremento de la vida útil.

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“…For blending referring to physical mixing of the silica nanoparticles and the polymer, the main difficulty is that silica nanoparticles in the polymer matrix usually tend to aggregate due to high surface energy and the formation of hydrogen bonds between nanoparticles through the hydroxyl groups on their surfaces [8,9]. Some researches prepared polymer/silica hybrid materials by chemical methods, like sol-gel process and polymerization.…”

Section: Introductionmentioning

confidence: 99%

“…Superhydrophobic surfaces like lotus leaves have a water contact angle (WCA) bigger than 150°which could be prepared by the cooperation of a low surface energy material and a rough surface structure [24][25][26]. It could be understandable that fluoropolymer/silica nanocomposites can be used to fabricate superhydrophobic surfaces because of the combination of low surface energy caused by fluoropolymer and rough surface structures due to nano-silica particles [8,15,[27][28][29]. Superhydrophobic surfaces on textiles subtrates have typical characteristics like flexibility, breathability, and light weight, attracting more and more attention.…”

Section: Introductionmentioning

confidence: 99%

Preparation of vinyl silica-based organic/inorganic nanocomposites and superhydrophobic polyester surfaces from it

Shen

Wang

et al. 2015

Colloid Polym Sci

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A fluoropolymer/silica (FP/SiO 2 ) organic-inorganic nanocomposite was synthesized by copolymerization of butyl acrylate (BA), methyl methacrylate (MMA), 2-hydroxyethyl acrylate (HEA), and dodecafluoroheptyl methacrylate (DFMA) based on vinyl nano-silica (V-SiO 2 ) using emulsion polymerization. The V-SiO 2 was prepared via water-based solgel reaction with vinyl trimethoxy silane (VTMS) as the precursor in the presence of the composite surfactant. The preparation of V-SiO 2 , influence of the composite surfactant on VSiO 2 , effect of composite emulsifier on the properties of FP/ SiO 2 , and the formation of the FP/SiO 2 nanocomposite were analyzed. The resulting V-SiO 2 and FP/SiO 2 were characterized by particle size analyzer, transmission electron microscopy (TEM), Fourier-transform infrared spectrometry (FTIR), and X-ray photoelectron spectroscopy (XPS). The obtained FP/ SiO 2 nanocomposites were applied to coat onto the flexible polyester fabrics by dip-pad-cure process. The results showed that the V-SiO 2 nanoparticles had been introduced into the FP/ SiO 2 nanocomposites and superhydrophobic polyester surfaces were achieved by the cooperation of the rough surface structure provided by the silica nanoparticles and the low surface energy caused by fluoropolymer.

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Fabrication of superhydrophobic and oleophobic sol–gel nanocomposite coating

Cited by 127 publications

References 43 publications

Corrosion resistance properties of superhydrophobic copper surfaces fabricated by one-step electrochemical modification process

Corrosion resistance properties of superhydrophobic copper surfaces fabricated by one-step electrochemical modification process

Tratamiento superficial con nanopartículas base silicio inducido durante el curado: Efecto en la durabilidad de materiales base cemento portland

Preparation of vinyl silica-based organic/inorganic nanocomposites and superhydrophobic polyester surfaces from it

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