Using the method of kinetic colorimetry, the degree of polymerization and sizes of silicon-oxygen anions in solutions of water glass were studied depending on the silicate modulus, on the density (concentration) of silica, and also on the nature of the alkaline cation. With an increase in modulus above 2.6 and density above 1.3, the degree of polymerization increased markedly. Moreover, the modulus of liquid glass was the most significant factor in the range of characteristics studied. After exceeding the critical values ??of the silicate modulus and the concentration of soluble silicate, the system from a true polyelectrolyte solution, characterized by the presence of discrete polymer anions, goes to the state of a coherent-dispersed colloidal system with a high degree of bulk polymerization
Korneev V.I., Danilov V.V. Liquid and soluble glass. SPb .: Stroyizdat, 1996.216 p.
Shabanova N. A., Sarkisov P. D. Fundamentals of sol-gel technology of nanodispersed silica. M .: Akademkniga, 2004.208 p.
Matveev M.A., Rabukhin A.I. Investigation of the physicochemical properties of liquid glasses in connection with their structure. Tr. MHTI. 1962. no. 38.S. 32? 43.
Tikhomirova IN Influence of composition and anionic structure of calcium hydrosilicates on the strength of silicate stone hydrothermal hardening: dis. ? Cand. tech. sciences. M., 1994.255 s.
Ayler R.K.Silica Chemistry: in 2 volumes: trans. from English Moscow: Mir, 1982.
The article can be purchased
electronic!
PDF format
700 руб
UDK 665.93:666.968
Article type:
At the enterprises and institutes
Make a request
