Abstract
Production of modified liquid glass and quartz materials from kaolinite clay of Alekseev deposit of Kazakhstan was studied. The sodium liquid glass processed by kaolinite clay, with chemical composition (g/dm3): SiO2-350; Na2O-155; Al2O3-2.1; Fe2O3- 0.3, silicate module-2.33 and density-1.49 g/cm3 has been used. The sodium liquid glass complies with the Russian Interstate standard 13078-81 for sodium liquid glass.10 samples of modified liquid glass were synthesized by introducing modifiers in an amount of 4% by weight of the solution into the liquid glass. Hard quartz material produced by using synthesized modified liquid glass was obtained. It has been established that the obtained modified liquid glass from kaolinite clay can improve the strength of the quartz material for 1.6 - 3.12 times higher than the initial liquid glass. Using liquid glass modifier to the inorganic sodium nitrate (NaNO3) increases the strength 3.12 times.
Highlights
As the inorganic binder, liquid glass is perspective material in the production of ceramics, composites and coverings silicate [1]
It has been established that the obtained modified liquid glass from kaolinite clay can improve the strength of the quartz material for 1.6 - 3.12 times higher than the initial liquid glass
To reduce manufacturing costs for the production of the modified liquid glass, we offer a way to simultaneously produce sodium modified liquid glass from low-quality aluminum-containing raw material-kaolinite clay at their complex processing
Summary
Liquid glass is perspective material in the production of ceramics, composites and coverings silicate [1]. During the long-term storage, polymerization reactions may occur spontaneously in the liquid glass, which lead to the “aging” and reducing strength and heat resistance of products and limiting the periods of storage and operating. These problems can be solved by substituting the traditional liquid glass with the modified liquid glass. Materials obtained on the basis of the modified liquid glass have high strength, durability, heat resistance, water resistance and other performance characteristics [2]
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