Development of new types, environmentally safe flame retardants for production fire-protective coatings

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Lali Gurchumelia
Murman Tsarakhov
Dali Dzanashvili
Tengiz Machaladze
Olga Chudakova

Abstract

The main goal of this research is fabrication of new types, non-toxic, environmentally safe, highly effective and inexpensive flame retardants, based on local mineral raw materials, which in fire-protective coatings will play the role as fillers as well as efficient inert flame retardants and assess their fire safety. Raw materials: zeolites, perlites, dolomites and clay shales were selected according their high performance properties and due to the factors indicating the reduction of burning processes, which can be predicted using the results of chemical and thermal gravimetric analysis. Such raw materials are silicate origin and containing alkaline-earth metal hydroxides, carbonates, bicarbonates, silicates and crystallization water. At their intensive heating incombustible gases, water steam and metal oxides are separated. Separation incombustible gases and water steam in flame zone acts as phlegmatizers while in surface zone they cause the formation of risen layer. The risen layer, metal oxides protective film and coke layer create the “fire restricting” effect. This is indicating to the fact, that such raw materials are characterized by high inhibition properties. Along with it, it should be noted that composite powders of such raw materials, similarly to inert flame retardants, don’t participate in the process of polymer preparation and in contrast to them are characterized by high performance properties. Thus, high dispersity composite powders of such raw materials in fire-protective coatings will play the role as fillers as well as efficient inert flame retardants.


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Gurchumelia, L., Tsarakhov, M., Dzanashvili, D., Machaladze, T., & Chudakova, O. (2022). Development of new types, environmentally safe flame retardants for production fire-protective coatings. Scientific Collection «InterConf», (138), 345–352. Retrieved from https://archive.interconf.center/index.php/conference-proceeding/article/view/2093

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