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0222U002810,
0119U002230
,
Development of technology of guided structure formation of Thermal insulation materials with predicted thermal physical characteristics
15-02-2022
Ivano-Frankivsk National University of Oil and Gas
Execution of work is directed on creation of technological and theoretical bases of processes of production of highly effective heat-insulating materials with the forecasted structural parameters and thermophysical properties. The technology is based on the process of swelling of the raw material mixture, which contains TPP ash at the stage of its optimal plastic-viscous properties, which ensures the achievement of a homogeneous structure of porous materials and the formation of closed pores. The technology provides a controlled effect on the kinetics of gas formation and the formation of a porous structure during the swelling of silicon-containing raw material mixture, which additionally contains waste coal ash from thermal power plants and medium-temperature gasifiers (clay, water). The developed technology allows: to reduce the cost of raw material components of the mixture, to obtain a homogeneous porous structure of the material, low thermal conductivity, the possibility of using the resulting porous material at higher temperatures. The basis of the technology is swelling by controlled formation of the porous structure of materials, where as a component of the silicon-containing component of the raw material mixture is used for the first time waste coal ash Burshtyn TPP. The technology includes grinding of bulk components of the raw mixture; steaming the mixture; granulation; swelling of granules. Determination of porosity, thermophysical characteristics and strength of the material was carried out by electron microscopy, dynamic calorimetry on the thermal conductivity meter IT - λ - 400 and destructive load on the sample.
Demianchuk Yaroslav Mykhailovych
Koshlak Hanna Volodymyrivna
Рavlenko Anatolii Mykhailovych
2022-03-09
Updated: 2025-12-07
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