Матеріалознавство

Постійний URI для цього зібранняhttps://repositary.knuba.edu.ua/handle/987654321/1859

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  • Документ
    Increase of fire resistance of coating wood with adding mineral fillers
    (Transbud-2018, 2018) Tsapko, Y.; Kyrycyok, V.; Tsapko, A.; Bondarenko, O.; Guzii, S.
    The article covers all the stages of the process of fire protection: as the separation of gases, heat transfer, the swelling of the coating, which is formed during by the action of fire. To determine the fire protection efficiency in the coatings developed, studies have been carried out on determining the combustibility of wood in terms of mass loss and increase in the temperature of flue gases, and it has been established that mass loss of coated wood does not exceed 3% and the temperature does not exceed 160°C. The results of the determination of the protection efficiency for the system have shown that under the influence of the hightemperature flame of burning of the material and the loss of the mass of the coating is reduced due to the formation of high-temperature compounds, while the time to reach the limiting temperature increases. Studies on determining the quality of fire protection wood treatment by coating showed that the rate of cooking for a rough sample of wood was more than 2 mm/min, for fire-proof samples - did not exceed 0.5 mm/min, which makes it possible to conclude that it is advisable to use them.
  • Документ
    Research of the efficiency of the fire fighting roof composition for cane
    (2019) Tsapko, Y.; Bondarenko, O.; Tsapko, А.
    Results of experimental researches about affectivity of firebiopotection products made from cane. Due to the unique properties of the cane, such as small volume weight, low thermal conductivity, rather high atmospheric resistance, high chemical resistance, the possibility of manufacturing parts at the site, efficiency, etc., cane products, despite the high pace of new technologies, are widely used in construction. Using cane in construction has a significant number of advantages, but needs protection from fire, from it produce a variety of products, equip the buildings. The unresolved issue of fire protection of products from such materials reduces the possibility of their use in construction. The experimental research on the determination of the firesafety properties of the cane set the ignition of the raw sample, while for fire-proof - the process of ignition and propagation of the flame did not occur. Especially inhibition of the process of ignition and propagation of cane fire treated with a covering impregnation solution, which consist of fire retardants under the influence of temperature with the absorption of heat and the release of noncombustible gases (nitrogen, carbon dioxide), change in the direction of the expansion in the direction of formation of non-combustible gases and heavy-duty coke residue, reducing the combustion of the material and, accordingly, the index of flammability. This indicates the possibility of directed control of the processes of transfer of high temperature to organic material by using special covering compositions for cane products. Introduction