Abstract
In this paper, we have successfully focused on a hydrophobic silica aerogels synthesis by the ambient drying of silica gels and the silylation with mono-, di-, and tri-functional agents was studied to improve physico-chemical properties of the aerogels. Silylated silica aerogels with water contact angles 161 ± 2°, 152 ± 3°, 147 ± 3° were obtained using trimethylchlorosilane, dimethyldichlorosilane, and methyltrimethoxysilane as a mono-, di- and tri-functional silylation reagents, respectively. The prepared mono-functional silylated silica aerogels exhibited relatively high thermal stability, low thermal conductivity, transparency, high porosity, and enhanced superhydrophobicity with low surface free energy making them suitable as multifunctional for many domestic and industrial applications. Our mono-functional silylated silica aerogels showed superior physico-chemical properties compared with di- and tri-functional silylated silica aerogels.
| Original language | English |
|---|---|
| Pages (from-to) | 164-171 |
| Number of pages | 8 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 453 |
| DOIs | |
| Publication status | Published - 2016 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry
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Organically modified silica aerogel with different functional silylating agents and effect on their physico-chemical properties. / Mahadik, Satish A.; Pedraza, F.; Parale, V. G.; Park, Hyung Ho.
In: Journal of Non-Crystalline Solids, Vol. 453, 01.12.2016, p. 164-171.Research output: Contribution to journal › Article
TY - JOUR
T1 - Organically modified silica aerogel with different functional silylating agents and effect on their physico-chemical properties
AU - Mahadik, Satish A.
AU - Pedraza, F.
AU - Parale, V. G.
AU - Park, Hyung Ho
PY - 2016/12/1
Y1 - 2016/12/1
N2 - In this paper, we have successfully focused on a hydrophobic silica aerogels synthesis by the ambient drying of silica gels and the silylation with mono-, di-, and tri-functional agents was studied to improve physico-chemical properties of the aerogels. Silylated silica aerogels with water contact angles 161 ± 2°, 152 ± 3°, 147 ± 3° were obtained using trimethylchlorosilane, dimethyldichlorosilane, and methyltrimethoxysilane as a mono-, di- and tri-functional silylation reagents, respectively. The prepared mono-functional silylated silica aerogels exhibited relatively high thermal stability, low thermal conductivity, transparency, high porosity, and enhanced superhydrophobicity with low surface free energy making them suitable as multifunctional for many domestic and industrial applications. Our mono-functional silylated silica aerogels showed superior physico-chemical properties compared with di- and tri-functional silylated silica aerogels.
AB - In this paper, we have successfully focused on a hydrophobic silica aerogels synthesis by the ambient drying of silica gels and the silylation with mono-, di-, and tri-functional agents was studied to improve physico-chemical properties of the aerogels. Silylated silica aerogels with water contact angles 161 ± 2°, 152 ± 3°, 147 ± 3° were obtained using trimethylchlorosilane, dimethyldichlorosilane, and methyltrimethoxysilane as a mono-, di- and tri-functional silylation reagents, respectively. The prepared mono-functional silylated silica aerogels exhibited relatively high thermal stability, low thermal conductivity, transparency, high porosity, and enhanced superhydrophobicity with low surface free energy making them suitable as multifunctional for many domestic and industrial applications. Our mono-functional silylated silica aerogels showed superior physico-chemical properties compared with di- and tri-functional silylated silica aerogels.
UR - http://www.scopus.com/inward/record.url?scp=84992529852&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84992529852&partnerID=8YFLogxK
U2 - 10.1016/j.jnoncrysol.2016.08.035
DO - 10.1016/j.jnoncrysol.2016.08.035
M3 - Article
AN - SCOPUS:84992529852
VL - 453
SP - 164
EP - 171
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
SN - 0022-3093
ER -