Results 261 to 270 of about 671,705 (314)

Production of Silica Aerogel

Physica Scripta, 1981
A production facility for silica aerogel has been set up in Lund. Aerogel is now produced in large quantities with the refractive indices of 1.03 and 1.05. The standard block size is 18 × 18 × 3 cm3.
S Henning, L Svensson
openaire   +1 more source

Hydrophobic silica CO2 aerogels

Journal of Non-Crystalline Solids, 1993
A hydrophobic silica gel is prepared by hydrolysis of a triethoxysilane solution. The SiH group induces a repelling water effect. CO2 hypercritical drying is performed on such a gel. The obtained aerogel exhibits hydrophobic properties similar to those of the starting gel.
M. Pauthe, F. Despetis, J. Phalippou
openaire   +1 more source

Preparation and characterization of hollow glass microsphere ceramics and silica aerogel/hollow glass microsphere ceramics having low density and low thermal conductivity

Journal of Alloys and Compounds, 2020
Novel thermal insulation material consisting of a frame work of hollow glass microspheres (HGMs) and embedded silica aerogel was prepared by allowing silica sol to penetrate into HGM ceramics, followed by drying under ambient pressure.
Junjie Ding, Qiang Liu, Biao Zhang, F. Ye, G. Ye   +4 more
semanticscholar   +1 more source

Surfactant-templated silica aerogels

Microporous and Mesoporous Materials, 1998
By combining the molecular silica precursor tetramethoxysilane (TMOS) with an alkaline, micellar, water: methanol solution, we form surfactant-templated silica gel (STSG) monoliths. The wet monoliths can be exchanged with ethanol and then supercritically extracted with carbon dioxide to produce surfactant-templated silica aerogels (STSAs).
Mark T. Anderson, Patricia S. Sawyer, Thomas Rieker   +2 more
openaire   +1 more source

Advances in multiple reinforcement strategies and applications for silica aerogel

Journal of Materials Science, 2023
Jieyu Xue, Ruonan Han, Yanming Li, Jianxun Zhang, Jinxin Liu, Yong Yang   +5 more
semanticscholar   +1 more source

Biopolymer-Containing Aerogels: Chitosan-Silica Hybrid Aerogels

2011
Hybrid aerogels comprising bioderived polymers and metal oxides have been explored in the case of chitosan and silica. The physical properties of homogeneous aerogels have been explored extensively and structural models have been formulated on the basis of the data.
Chunhua Jennifer Yao, Xipeng Liu, William M. Risen   +2 more
openaire   +1 more source

Iron-Cobalt-Silica Aerogel Nanocomposite Materials

Journal of Sol-Gel Science and Technology, 2003
Iron-Cobalt-Silica nanocomposites were prepared in form of aerogels. X-ray diffraction, transmission electron microscopy and N2 physisorption at 77 K were used to investigate the structure, size and dispersion of the nanocrystals and the porous structure in the aerogels and in the final composites.
CASULA, MARIA FRANCESCA, CORRIAS, ANNA, PASCHINA G.   +2 more
openaire   +2 more sources

Nanomechanical Property Analysis of Silica Aerogel

Volume 1: 15th International Conference on Advanced Vehicle Technologies; 10th International Conference on Design Education; 7th International Conference on Micro- and Nanosystems, 2013
Aerogels (AGs) are open-cell nanofoams. AGs are lightweight and possess high thermal and acoustic insulation properties. Due to their ∼ 90% porosity, AGs are very brittle and fragile, which inhibits its use for load-bearing applications. For this reason an area of open research is the study and improvement of the mechanical properties of aerogels ...
Claudia Pagano, Curtis R Taylor
openaire   +1 more source

Thermal Insulation of Flame Retardant Silica Aerogel Composites from Rice Husk Ash and Plastic Waste Fibers

Journal of Inorganic and Organometallic Polymers and Materials, 2023
N. H. Do, Nguyen N.T. Can, P. Le
semanticscholar   +1 more source

Fabrication of silica aerogel composite blankets from an aqueous silica aerogel slurry

Ceramics International, 2018
Abstract Low-density silica aerogel composite blankets were successfully fabricated from silica aerogel slurries via an impregnation technique. Silica aerogel powder formed a stable slurry in a mixed ethanol/water solution with a polyvinyl alcohol (PVA) binder.
Kyoung-Jin Lee, Yeong-Ju Choe, Young Hun Kim, Je Kyun Lee, Hae-Jin Hwang   +4 more
openaire   +1 more source