Dependence of the fractality of the silica gel on the method of sol emulsification
https://doi.org/10.21122/1683-6065-2021-3-88-90
Abstract
The article presents experimental data confirming the effect of capillary active substance (surfactants) and sedimentation stability on the final structure of the gel with stabilized silicic acid. Studies of the macrostructure of silica gel depending on the method of emulsifi ation of silicic acid sol and the effect of the resulting fractality on the strength of the mold are presented.
The direction of modifying the binder for lost‑wax casting (LWC) with obtaining the specified properties of the ceramic shell is shown.
The complex effect of organic polymers on the sol – gel system has been established. The conclusion is made about the possibility of using an aqueous dispersion of acrylic to form a given structure of a silica gel.
About the Authors
S. S. Tkachenko
Creative Workshop “Liteyny Dvor” – Branch of the Russian Academy of Arts
Russian Federation
St. Petersburg; Russia; 1; Rasstanny proezd.
Russian Federation
St. Petersburg; Russia; 1; Rasstanny proezd.
V. O. Yemelyanov
Creative Workshop “Liteyny Dvor” – Branch of the Russian Academy of Arts
Russian Federation
St. Petersburg; Russia; 1; Rasstanny proezd.
Russian Federation
St. Petersburg; Russia; 1; Rasstanny proezd.
K. V. Martynov
Creative Workshop “Liteyny Dvor” – Branch of the Russian Academy of Arts
Russian Federation
St. Petersburg; Russia; 1; Rasstanny proezd.
Russian Federation
St. Petersburg; Russia; 1; Rasstanny proezd.
References
1. Brechko A.A.; Emel’janov V. O.; Martynov K. V. Osobennosti formirovanija struktury i poverhnosti kontaktnogo sloja keramicheskih form na osnove JeTS‑40 i Sialit‑20S [Features of the formation of the structure and surface of the contact layer of ceramic molds based on ETS‑40 and Sialit‑20C]. Litejshhik Rossii = Foundry of Russia; 2006; no. 2.
2. Brechko A.A.; Emel’janov V. O.; Martynov K. V. Prochnost’ keramicheskih form dlja lit’ja po vyplavljaemym modeljam [Strength of ceramic investment casting molds]. Sbornik trudov IX s'ezda litejshhikov; 21–23 aprelja 2009 g.; Ufa = Collection of works of the 9th congress of foundry workers; April 21–23; 2009; Ufa.
Review
For citations:
Tkachenko S.S., Yemelyanov V.O., Martynov K.V. Dependence of the fractality of the silica gel on the method of sol emulsification. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2021;(3):88-90. (In Russ.) https://doi.org/10.21122/1683-6065-2021-3-88-90
Views:
345
Email this article 