Water-repellent coating films on glass prepared from hydrolysis and polycondensation reactions of fluoroalkyltrialkoxylsilane

Comparative study on hydrophobic anti-reflective films from three kinds of methyl-modified silica sols

“…So generally the acquirement of hydrophobic surface is out of two approaches [39][40][41][42][43][44][45][46]: chemical modification to surface or roughening the surface. But most researches about hydrophobic films did not aim to improve the hydrophobicity of optical film.…”

“…Generally, with fluoroalkyltrialkoxylsilane (FAS) as hydrophobic precursor, the chemical modification to solid surface was used to form hydrophobic films by several studies [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46]. Nakagawa [31], Hong [32] and Aksmatsu et al [46] synthesized fluoroalkyl-modified SiO 2 sols through acid-catalyzed hydrolysis of FAS in ethanol, and prepared hydrophobic films.…”

Application of Nano Coating (SiO2) on Textile Products

“…Recently, with the increasing demands toward functionality of materials that cannot withstand high temperatures, such as textiles and plastics, the control of surface wettability via low-temperature processing is particularly significant. Surface modification with hydrophobic properties using the sol-gel method has been investigated during recent years [8]. Although D DAVID PUBLISHING simple sol-gel reactions usually result in the formation of amorphous materials, self-organization of organosilane molecules offers an opportunity to create ordered hybrid materials with hydrophobic properties [9].…”

Superhydrophobic surfaces prepared from water glass and non-fluorinated alkylsilane on cotton substrates

“…However, the preparation of silica sols has been limited to use silicon alkoxides such as tetraethoxysilane (TEOS) as precursor in the sol-gel synthesis [7][8][9][10][11][12][13][14][15][16]. This chemical method using TEOS has some advantages, such as convenience in controlling size distribution.…”

“…The common chemicals used were fluoroalkylsilanes (FAS) [9][10][11][12][13][14][15][16]. It is true that fluorochemicals have extremely low surface free energy; however, such compounds are high cost and have a potential risk for human health and for environment [17,18].…”