Based on the sol-gel method for producing luminescent materials, the process kinetics is studied for the initial stages of hydrolysis and polycondensation of tetraethoxysiloxane for different temperatures and component ratios. A model of the process is proposed, and reaction rate constants are determined. A conclusion is made on the limiting effect of the polycondensation stage up to the moment of gel formation.
Origin
Mendeleev Russian Chemical Engineering University, Moscow, Russia.
Journal Title
Glass And Ceramics 57 3-4 2000 81 - 84
Sector
Special Glass
Class
S 3154