Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31996
Title: Synthesis and characterization of hydrophobic silica nanocomposites
Authors: Daoud, WA
Xin, JH 
Tao, X 
Keywords: Coatings
Hydrophobicity
Nanocomposites
Nanophase-materials
Sol-gel processing
Issue Date: 2006
Publisher: North-Holland
Source: Applied surface science, 2006, v. 252, no. 15, p. 5368-5371 How to cite?
Journal: Applied surface science 
Abstract: Hydrophobically modified silica nanocomposites have been prepared using a low temperature sol-gel process. In this study, an alkyltriethoxysilane derivative, hexdecyltrimethoxysilane (HDTMS), was co-condensed with tetraethoxyorthosilicate (TEOS) with and without a cross-linking agent, 3-glycidoxypropyltrimethoxysilane (GPTMS), to produce the modified composites. The hydrophobic properties were determined using contact angle measurement. FESEM observations revealed a semispherical nanostructure of the composites with grain size of about 50-75 nm in diameter. The chemical modification was studied by FTIR and EDX, whereas the physicothermal properties were analyzed by DSC and TGA. These long-chain alkyl modified silica nanocomposites are promising materials for use in hydrophobic and water-resistant applications.
URI: http://hdl.handle.net/10397/31996
ISSN: 0169-4332
EISSN: 1873-5584
DOI: 10.1016/j.apsusc.2005.12.020
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