Structure and diffuse-boundary in hydrophobic and sodium dodecyl sulfate-modified silica aerogels
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- 作者：Amanda P. Perissinottoa ; Carlos M. Awanoa ; Fabio S. de Vicentea ; Dario A. Donattia ; Alexandre Mesquitaa ; Luí ; s F. da Silvab ; Dimas R. Volleta ; vollet@rc.unesp.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Diffuse-boundary ; APD aerogels ; Silylation ; SAXS ; Nitrogen adsorption
- 刊名：Microporous and Mesoporous Materials
- 出版年：2016
- 出版时间：15 March 2016
- 年：2016
- 卷：223
- 期：Complete
- 页码：196-202
- 全文大小：987 K
文摘
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Hydrophobic ambient pressure drying aerogels were prepared from surfactant-modified silica gels.
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A mixture of hexamethyldisiloxane and trimethylchlorosilane was used as silylating agent.
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Silytation and ambient pressure drying modified the mass-fractal structure of the wet gels.
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The silica particles in the aerogels exhibited interfacial diffuse-boundary and internal inhomogeneity.