Criteria for the development of effective inorganic flame retardants for nonwoven fine fiber polyester materials
DOI:
https://doi.org/10.33408/2519-237X.2022.6-3.263Keywords:
flame protected polyester fibers, metal phosphate flame retardantв, colloidal particlesAbstract
Purpose. Identification of the most important criteria for the effectiveness of inorganic flame retardants in relation to bulk polyester materials and the features of thermal-oxidative degradation of polyester heat-insulating materials modified by them.
Methods. Theoretical method of comparative analysis, experimental methods of gravimetry, transmission electron microscopy, differential scanning calorimetry, GOST fire tests.
Findings. The influence of the chemical and particle size distribution of ammonium phosphate flame retard-ants on the effectiveness of surface fire protection and the laws of thermo-oxidative destruction of polyester fiber materials modified by them was investigated. It has been proven that colloidal systems with particle sizes of no more than 50 nm, containing components of both gas-phase and solid-phase action, are the most effective. The principles for the development of synthetic inorganic flame retardants for fine-fiber polymeric materials are formulated.
Application field of research. The results obtained are the basis for the targeted synthesis of new non-toxic flame retardants for fine-fiber polyester materials for various purposes including building insulation and sound insulator.
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