期刊名称：Eastern-European Journal of Enterprise Technologies
印刷版ISSN：1729-3774
电子版ISSN：1729-4061
出版年度：2016
卷号：5
期号：10
页码：26-31
DOI：10.15587/1729-4061.2016.79869
语种：English
出版社：PC Technology Center
摘要：The analysis of methods of determining the intumescent ability of fire-retardant coatings was performed, and the need to develop reliable methods for the study of the blistering process for the creation of new types of coatings was identified. Evaluation of the swelling ratio of inorganic and organic coatings, revealed the unreliability of the real values of the kinetics of decomposition of materials. The method for determining the kinetics of swelling of coatings was validated, and with the constant heat and mass transfer conditions during the test, the device was designed. Studies of the kinetics of swelling of organic-inorganic coatings by this method have shown that under prolonged exposure to high temperature, the swelling coefficient decreases due to the foam-coke burnout. The results of determining the intumescent ability of coatings when adding fillers showed that when exposed to high-temperature stream, the material burnout and the coating weight loss are reduced by more than half due to the formation of high-temperature compounds, and this increases the time to reach the limit temperature. As a result of thermogravimetric study, the weight loss of the coatings depending on the temperature was determined, the activation energy was investigated in the temperature expansion of the coatings and it was found that for organic-inorganic coating, it was 18.79 kJ/mol, and in the case of the introduction of fillers – tripled. These data suggest the feasibility of the use of fillers based on oxides and hydroxides to improve the efficiency of organic-inorganic coatings.
