Synthesis and characterization of transparent hydrophobic silica thin films by single step sol–gel process and dip coating

2010 ◽  
Vol 496 (1-2) ◽  
pp. 436-441 ◽  
Author(s):  
D.Y. Nadargi ◽  
J.L. Gurav ◽  
N. El Hawi ◽  
A.V. Rao ◽  
M. Koebel
2016 ◽  
Vol 36 (3) ◽  
pp. 309-320 ◽  
Author(s):  
Wei-Ming Chiu ◽  
Jhih-Siao Syu ◽  
Peir-An Tsai ◽  
Jyh-Horng Wu

Abstract Organic/inorganic hybrid materials were formed using the sol-gel process, in which SiO2/fluoroalkyl-trialkoxysilane (FAS)/2-hydroxyethyl methacrylate (2-HEMA)/trimethylolpropane triacrylate (TMPTA) and SiO2/3-(trimethoxysilyl)propyl methacrylate (MSMA)/ 2-HEMA/TMPTA thin films were formed on a glass substrate using dip coating. Experimental results revealed that FAS and MSMA improved the pencil hardness of SiO2/2-HEMA/TMPTA thin films without affecting their optical properties. FAS strengthened the hydrophobic and hydrophilic characteristics of SiO2/2-HEMA/TMPTA thin films more than did MSMA. However, an excess of FAS and an increase in withdrawal rates deteriorates the gloss, because both increased the SiO2 content, reducing the reflectivity.


2012 ◽  
Vol 28 (6) ◽  
pp. 500-505 ◽  
Author(s):  
Sebastian Wiegand ◽  
Stefan Flege ◽  
Olaf Baake ◽  
Wolfgang Ensinger

1991 ◽  
Vol 24 (6) ◽  
pp. 1431-1434 ◽  
Author(s):  
Timothy E. Long ◽  
Larry W. Kelts ◽  
S. Richard Turner ◽  
Jeffrey A. Wesson ◽  
Thomas H. Mourey

2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Marek Nocuń ◽  
Sławomir Kwaśny

AbstractIn our investigation, V doped SiO2/TiO2 thin films were prepared on glass substrates by dip coating sol-gel technique. Chemical composition of the samples was studied by X-ray photoelectron spectroscopy (XPS). Transmittance of the samples was characterized using UV-VIS spectrophotometry. Subsequently band-gap energy (Eg) was estimated for these films. Powders obtained from sols were characterized by FTIR spectroscopy. It was found that vanadium decreases optical band gap of SSiO2/TiO2 films.


2011 ◽  
Vol 13 (6) ◽  
pp. 1232-1234 ◽  
Author(s):  
Vaishali Patil ◽  
Arun Patil ◽  
Ji-Won Choi ◽  
Seok-Jin Yoon

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