Self-cleaning silica coatings on glass by single step sol–gel route

Ganbavle, V.V.; Bangi, Uzma K.H.; Latthe, Sanjay S.; Mahadik, Satish A.; Rao, A. Venkateswara

doi:10.1016/j.surfcoat.2011.05.055

Cited by 99 publications

(46 citation statements)

References 27 publications

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“…For pure silica xerogel, there are absorption bands observed at around 3450 cm −1 , 2964 cm −1 , 1630 cm −1 , 1090 cm −1 , 954 cm −1 , and 800 cm −1 . The broad absorption band at around 3450 cm −1 is attributed to Si-OH bonds or absorbed water [16,17]. The three peaks around 2964 cm −1 corresponds to the stretching vibration of C-H bonds from -CH3 [18].…”

Section: Ftir Characterizationmentioning

confidence: 99%

Surface Modification of Sol-Gel Silica Antireflective Coatings by F-PMHS: A Simple Method for Improvement of Amphiphobicity

et al. 2018

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Sol-gel silica antireflective coatings (ARCs) with improved amphiphobicity were simply fabricated on BK7 glass substrates via fluorinated-poly(methylhydrogen)siloxane (F-PMHS) surface modification by the dip-coating method. The results of Fourier Transform Infrared (FTIR) and X-ray Photoelectron Spectroscopy (XPS) showed that F-PMHS were covalently bonded to the surface of ARCs. F-PMHS modification significantly improved hydrophobicity and oleophobicity of silica ARCs by increasing their water contact angles from 27 • to 105 • and oil contact angles from 17 • to 45 • . In addition to the improved amphiphobicity, the modified ARCs also possessed excellent transmittance. Most importantly, it was found that with increasing F-PMHS content the atom amounts and porous property of modified ARCs were almost unchanged. This result had been shown to be associated with the changes of optical property and amphiphobicity for silica ARCs, and the details were discussed.

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Section: Ftir Characterizationmentioning

confidence: 99%

Surface Modification of Sol-Gel Silica Antireflective Coatings by F-PMHS: A Simple Method for Improvement of Amphiphobicity

et al. 2018

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“…However, the sol-gel method has been widely used to prepare hydrophobic coatings due to its advantages such as higher homogeneity, better purity from raw material, lower temperature of preparation and special product ranging from thin film to composites [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…These are the most common sites for hydrogen bonding and leading to the hydrophilicity of surface[22].As the M value is increased in basic condition, nucleophilic deprotonated silanol on the silica nanoparticles are attacked by Iso-OTMS. As the result, the hydrogen of hydroxyl groups can be eliminated by non-polar and hydrolytically stable -Si(C8 H 17 ) groups and water contact angle increased up to 100° at M = 0.6. However, with further increase in the mole fraction of Iso-OTMS (M > 0.6), the silica films show the lower contact angle of 100°.…”

mentioning

confidence: 99%

The influence of the hydrophobic agent, catalyst, solvent and water content on the wetting properties of the silica films prepared by one-step sol–gel method

Ramezani

Vaezi

Kazemzadeh

2015

Applied Surface Science

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“…10,11 These functional surfaces have fascinating potential applications in the field of tissue engineering, innovative energy and micro-fluidic chips. For this reason, researchers have made great efforts to reproduce these biomimetic surfaces by a variety of methods like chemical solvents treatment, 12,13 sol-gel method, 14 plasma fluorination, 15 self organization. 16,17 and atomic layer deposition.…”

Section: Introductionmentioning

confidence: 99%

Facile fabrication of functional PDMS surfaces with tunable wettablity and high adhesive force via femtosecond laser textured templating

Cai

et al. 2014

AIP Advances

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Femtosecond laser processing is emerged as a promising tool to functionalize surfaces of various materials, including metals, semiconductors, and polymers. However, the productivity of this technique is limited by the low efficiency of laser raster scanning. Here we report a facile approach for efficiently producing large-area functional polymer surfaces, by which metal is firstly textured by a femtosecond laser, and the as-prepared hierarchical structures are subsequently transferred onto polydimethylsiloxane (PDMS) surfaces. Aluminum pieces covered by laser induced micro/nano-structures act as template masters and their performance of displaying diverse colors are investigated. Polymer replicas are endowed with tunable wetting properties, which are mainly attributed to the multi-scale surface structures. Furthermore, the surfaces are found to have extremely high adhesive force for water drops because of the high water penetration depth and the resultant high contact angle hysteresis. This characteristic facilitates many potential applications like loss-free tiny water droplets transportation. The reusability of metal master and easiness of soft lithography make it to be a very simple, fast and cost-efficient way for mass production of functional polymeric surfaces.

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Self-cleaning silica coatings on glass by single step sol–gel route

Cited by 99 publications

References 27 publications

Surface Modification of Sol-Gel Silica Antireflective Coatings by F-PMHS: A Simple Method for Improvement of Amphiphobicity

Surface Modification of Sol-Gel Silica Antireflective Coatings by F-PMHS: A Simple Method for Improvement of Amphiphobicity

The influence of the hydrophobic agent, catalyst, solvent and water content on the wetting properties of the silica films prepared by one-step sol–gel method

Facile fabrication of functional PDMS surfaces with tunable wettablity and high adhesive force via femtosecond laser textured templating

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