Results 171 to 180 of about 499,894 (252)
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ACS Applied Materials and Interfaces, 2021
Silica aerogels are attractive materials for various applications due to their exceptional performances and open porous structure. Especially in thermal management, silica aerogels with low thermal conductivity need to be processed into customized ...
Lukai Wang +8 more
semanticscholar +1 more source
Silica aerogels are attractive materials for various applications due to their exceptional performances and open porous structure. Especially in thermal management, silica aerogels with low thermal conductivity need to be processed into customized ...
Lukai Wang +8 more
semanticscholar +1 more source
Carbohydrate Polymers, 2023
Chitosan aerogels could be applied potentially in thermal insulation for energy-saving buildings, separation/adsorption, and catalysis. However, disadvantages of chitosan aerogels include their hydrophilicity and low insufficient mechanical strength ...
Sizhao Zhang +9 more
semanticscholar +1 more source
Chitosan aerogels could be applied potentially in thermal insulation for energy-saving buildings, separation/adsorption, and catalysis. However, disadvantages of chitosan aerogels include their hydrophilicity and low insufficient mechanical strength ...
Sizhao Zhang +9 more
semanticscholar +1 more source
, 2021
The existing preparation processes of silica aerogels suffer several problems, such as high cost, long preparation period and unsatisfactory performance.
C. Yao +4 more
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The existing preparation processes of silica aerogels suffer several problems, such as high cost, long preparation period and unsatisfactory performance.
C. Yao +4 more
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Organofunctional silica aerogels
Journal of Sol-Gel Science and Technology, 1997Organically modified silica aerogels were prepared from mixtures of tetramethoxysilane (TMOS) and organofunctional alkoxysilanes RSi(OMe)3 with R = mercaptopropyl, diphenylphosphinoethyl and chloropropyl. The base catalyzed hydrolysis and condensation reactions, followed by supercritical drying with liquid carbon dioxide were investigated.
N. Hüsing, U. Schubert
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Stiff and tough hydrophobic cellulose-silica aerogels from bacterial cellulose and fumed silica
, 2021This work reports hydrophobic and compressible cellulose- silica composite aerogels prepared by freeze drying fumed silica (FS) infiltrated bacterial cellulose (BC) hydrogels.
S. Padmanabhan +2 more
semanticscholar +1 more source
Journal of Hazardous Materials, 2020
Silica aerogels are ultra-porous materials with three-dimensional cage-like morphology that makes these materials ideal for separation applications.
Selay Sert Çok, F. Koç, N. Gizli
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Silica aerogels are ultra-porous materials with three-dimensional cage-like morphology that makes these materials ideal for separation applications.
Selay Sert Çok, F. Koç, N. Gizli
semanticscholar +1 more source
Journal of Non-Crystalline Solids, 1995
Abstract Hydrophobic silica aerogels were produced by the -Si(Me)3 (trimethylsilyl substituent: TMS) modification of alcogels followed by CO2 supercritical drying. The structure of trimethylsilyl modified silica aerogel (TMSA) was the silica matrix produced by hydrolysis and condensation of only tetramethoxysilane (TMOS).
H. Yokogawa, M. Yokoyama
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Abstract Hydrophobic silica aerogels were produced by the -Si(Me)3 (trimethylsilyl substituent: TMS) modification of alcogels followed by CO2 supercritical drying. The structure of trimethylsilyl modified silica aerogel (TMSA) was the silica matrix produced by hydrolysis and condensation of only tetramethoxysilane (TMOS).
H. Yokogawa, M. Yokoyama
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Journal of the European Ceramic Society, 2020
In this study, monolithic alumina–silica aerogels with high surface areas and good mechanical properties were synthesized via a facile sol–gel method without solvent exchange.
F. Peng +5 more
semanticscholar +1 more source
In this study, monolithic alumina–silica aerogels with high surface areas and good mechanical properties were synthesized via a facile sol–gel method without solvent exchange.
F. Peng +5 more
semanticscholar +1 more source
Synergistic effects of silica aerogels/xerogels on properties of polymer composites: A review
, 2020The present review focuses on synergistic effectsof silica aerogels/xerogels on properties of polymer composites. In first part of the review, synthesis of silica aerogels/xerogels from inexpensive silica precursors in addition to silicon alkoxides is ...
G. Kaya, H. Deveci
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