Preparation and Characterization of Silica Aerogels/Glass Wool Composites

Jing Xiao Liu; Xiao Jie Wang; Fei Shi; Jia Yu Luo

doi:10.4028/www.scientific.net/AMR.534.106

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Pore Structure Characterization of TiO₂-SiO₂ Composite Aerogel Prepared via Ambient Pressure Drying by Sol Pre-Modification Process
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Preparation and Characterization of Silica Aerogels/Glass Wool Composites
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 534Preparation and Characterization of Silica...

Preparation and Characterization of Silica Aerogels/Glass Wool Composites

Abstract:

Using industrial water glass as silica source, silica aerogel/glass wool composite heat insulation materials were prepared through the gel moulding, surface modification and ambient pressure drying method. The microstructure and porous characteristics of the silica aerogel/glass wool composites were studied by scanning electron microscopy (SEM) and BET nitrogen adsorption-desorption method. The thermal conductivity of silica aerogel/glass wool composites was measured by the thermal conductivity measurement instrument. The results indicate that the as-prepared silica aerogel/glass wool composites exhibit strong hydrophobicity and excellent thermal insulation performance. The thermal conductivity of the obtained silica aerogel/glass wool composites is 1.1×10^-2～2.0 W∙m-1∙K-1, and with the increasing of aerogels content, the thermal conductivity of the composites could be decreased further.

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Periodical:

Advanced Materials Research (Volume 534)

Pages:

106-109

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.534.106

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Online since:

June 2012

Authors:

Jing Xiao Liu, Xiao Jie Wang, Fei Shi, Jia Yu Luo

Keywords:

Ambient Pressure Drying, Glass Wool, Heat Insulation, Silica Aerogel, Thermal Conductivity (TC)

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