Dependence of fire-heat protective properties of styrene-acrylic intumescent composite material on the ratio of main components
https://doi.org/10.29235/1561-8331-2025-61-4-271-285
Abstract
The method of mathematical planning of the experiment was employed to optimize the fire-resistant and thermal insulating properties of the basic fire-retardant thermal foamable composite (FRTC). The variable factors included the main components of the composite formulation: the content (wt.%) of styrene-acrylic binder, gas-coke-forming system and thermal foaming agent. Using an adequate regression model of a full factorial experiment, the optimal ratios of components in the FRTC formulation were determined. The response function surfaces (weight loss, maximum temperature increase during the fire test, volume-foaming coefficient and relative compression deformation of the intumescent residue) affecting the fire resistance of the composite were constructed. It was shown that the optimized composite exhibited enhanced fire resistance and improved physical-mechanical characteristics of the thermolysis products compared to the basic FRTC, along with higher thermal stability, which collectively significantly improve its thermal insulating efficiency.
About the Authors
V. V. Bogdanova
Research Institute for Physical Chemical Problems of BSU
Belarus
Belarus
Bogdanova Valentina V. – Dr. Sc. (Chemistry), Professor, Head of the Laboratory
14, Leningradskaya Str., 220006, Minsk
O. I. Kobets
Research Institute for Physical Chemical Problems of BSU
Belarus
Belarus
Kobets Olga I. – Ph. D. (Chemistry), Leading Researcher
14, Leningradskaya Str., 220006, Minsk
A. S. Platonov
University of Civil Protection of the Ministry for Emergency Situations of Belarus
Belarus
Belarus
Platonov Aleksandr S. – Ph. D. (Physics and Mathe- matics), Associate Professor, Leading Researcher
25, Mashinostroiteley Str., 220118, Minsk
A. B. Perevoznikova
Belarusian State University
Belarus
Belarus
Perevoznikova Anna B. – Postgraduate Student
14, Leningradskaya Str., 220006, Minsk
O. N. Buraya
Research Institute for Physical Chemical Problems of BSU
Belarus
Belarus
Buraya Oksana N. – Researcher
14, Leningradskaya Str., 220006, Minsk
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