Synthesis and characterization of hydrophobic silica nanocomposites

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)5368-5371
Journal / PublicationApplied Surface Science
Volume252
Issue number15
Publication statusPublished - 30 May 2006
Externally publishedYes

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. © 2005 Elsevier B.V. All rights reserved.

Research Area(s)

  • Coatings, Hydrophobicity, Nanocomposites, Nanophase-materials, Sol-gel processing

Citation Format(s)

Synthesis and characterization of hydrophobic silica nanocomposites. / Daoud, Walid A.; Xin, John H.; Tao, Xiaoming.

In: Applied Surface Science, Vol. 252, No. 15, 30.05.2006, p. 5368-5371.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review