Articles
| Open Access | IMPROVING FIRE AND HEAT RESISTANCE OF WOOL-BASED NONWOVEN MATERIALS THROUGH ADVANCED MODIFICATION TECHNOLOGIES
Bozorov Shohabbos Abduvihid ugli , Doctoral student of the 2st stage of the Termez State University of Engineering and Agrotechnology, Uzbekistan Urazov Mustofokul Kulto‘rayevich , Vice-Rector for Scientific Affairs of Termez State University of Engineering and Agrotechnology, UzbekistanAbstract
Wool fiber is a natural protein-based material composed of keratin containing sulfur-rich amino acids, disulfide bonds, and α-helix molecular structures that provide inherent flame resistance. This study analyzes the thermal behavior, decomposition mechanism, and fire resistance of wool fibers using international standards such as LOI, ASTM D6413, TGA, and DSC. Additionally, the research evaluates the effectiveness of phosphorus-, boron-, silicon-based and nanocomposite chemical modifications for enhancing flame resistance. Comparative studies of international and Uzbek researchers are included, with special attention to the performance of Uzbek merino wool. Experimental results show that phosphorus-containing treatments improve char formation by 18–40%, while nanocomposite additives reduce flame spread by up to 50%. The study also outlines technological steps for producing flame-resistant wool-based nonwoven fabrics suitable for protective clothing, insulation panels, and eco-safe composite materials. The findings demonstrate the feasibility of developing high-performance fire-resistant technical textiles using local raw materials.
Keywords
Wool fiber; Flame resistance; Fire-retardant modification; Nonwoven materials; Thermal decomposition; Nanocomposites; Keratin; LOI; ASTM D6413; Eco-friendly textiles
References
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O‘zbekiston merinos juni bo‘yicha ilmiy izlanishlar, TSTU va TDMAU laboratoriya natijalari, 2021–2024.
ASTM D6413 – Standard Test Method for Flame Resistance of Textiles.
ISO 15025 – Protective clothing — Protection against heat and flame.
Nazarov, B., & Xidirova, G. Jun tolalarining olovbardoshligi bo‘yicha tadqiqotlar. O‘zbekiston To‘qimachilik Jurnali, 2023.
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