Measuring the Contact Angles of Powders by the Sessile Drop Method

Measuring the Contact Angles of Powders by the Sessile Drop Method

It is found that the time of establishing a critical contact angle of wetting the surface of a pressed sample made of polycrystalline quartz powder with different liquids is determined primarily by the viscosity of the liquid. It is shown that, in order to determine the critical contact angle of pow...

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Veröffentlicht in:Inorganic materials : applied research 2021-05, Vol.12 (3), p.794-798
Hauptverfasser: Danilov, V. E., Korolev, E. V., Ayzenshtadt, A. M.
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry and Materials Science
Composite Materials
Contact angle
Diameters
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Sessile drop method
Wetting
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Zusammenfassung:It is found that the time of establishing a critical contact angle of wetting the surface of a pressed sample made of polycrystalline quartz powder with different liquids is determined primarily by the viscosity of the liquid. It is shown that, in order to determine the critical contact angle of powder materials, it is necessary to record the moment at which the diameter of the base of a liquid droplet on the surface of a powder sample has a maximum value.
ISSN:2075-1133
2075-115X
DOI:10.1134/S2075113321030084