STUDY OF THE STRUCTURE OF HEAT-INSULATING MATERIALS BASED ON LIQUID GLASS DEPENDING ON THE AMOUNT OF GAS-FORMING AGENT
Journal Title: Вчені записки Таврійського національного університету імені В. І. Вернадського. Серія: Технічні науки - Year 2018, Vol 29, Issue 6
Abstract
In paper are considered composite foam-materials obtained by chemical foaming of the liquid-glass binder, which monoliths the granular filler also on the basis of liquid glass. The introduction of the granular filler into the liquid-glass composition makes it possible to reduce shrinkage, water absorption, hygroscopicity, improve the strength characteristics of the foam material, and improve him macrostructure. The purpose of this work is to study the process of porisation during the preparation of liquid-glass foam-materials, by studying their macrostructure and phase composition, as well as the kinetics of the foaming process, depending on the type blowing agent. In the course of the research it was found that aluminum powder is the optimal blowing agent. When it is used, the structure restructuring processes are intensively carried out, which contributes to the formation of a uniform, finely porous structure of the foam, leading to an increase in its strength characteristics.
Authors and Affiliations
Т. Э. Рымар
Keywords
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