Fabrication of ordered aerogel samples with different densities

Fabrication of ordered aerogel samples with different densities

A method is described that allows the synthesis of denser samples of a nematically ordered aerogel from commercial Nafen with the effective density of 72 mg/cm 3 . The method is based on the drying of Nafen pre-immersed in a liquid (water, ethanol, pentane, or liquid nitrogen). The density of the fi...

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Veröffentlicht in:Instruments and experimental techniques (New York) 2017-09, Vol.60 (5), p.737-741
Hauptverfasser: Volkov, V. V., Dmitriev, V. V., Zolotukhin, D. V., Soldatov, A. A., Yudin, A. N.
Format: Artikel
Sprache:eng
Schlagworte:
Aerogels
Electrical Engineering
Ethanol
Laboratory Techniques
Liquid nitrogen
Measurement Science and Instrumentation
Physical Chemistry
Physics
Physics and Astronomy
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Beschreibung
Zusammenfassung:A method is described that allows the synthesis of denser samples of a nematically ordered aerogel from commercial Nafen with the effective density of 72 mg/cm 3 . The method is based on the drying of Nafen pre-immersed in a liquid (water, ethanol, pentane, or liquid nitrogen). The density of the final product is measured as a function of the surface-tension coefficient of the liquid filling the sample.
ISSN:0020-4412
1608-3180
DOI:10.1134/S0020441217050104