Single overall 'H-shaped' multifunctional compound achieves fire safety, durability, enhanced strength, and smoke suppression of cotton fabrics.

Autor: Jin X; College of Textile and Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Functional Textiles and Advanced Materials, College of Chemistry and Chemical Engineering Qingdao University, Qingdao 266071, China., Li X; College of Textile and Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Functional Textiles and Advanced Materials, College of Chemistry and Chemical Engineering Qingdao University, Qingdao 266071, China., Yang C; College of Textile and Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Functional Textiles and Advanced Materials, College of Chemistry and Chemical Engineering Qingdao University, Qingdao 266071, China., Liu X; College of Textile and Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Functional Textiles and Advanced Materials, College of Chemistry and Chemical Engineering Qingdao University, Qingdao 266071, China., Zhang T; College of Textile and Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Functional Textiles and Advanced Materials, College of Chemistry and Chemical Engineering Qingdao University, Qingdao 266071, China., Lu Z; College of Textile and Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Functional Textiles and Advanced Materials, College of Chemistry and Chemical Engineering Qingdao University, Qingdao 266071, China. Electronic address: yudija@163.com., Dong C; College of Textile and Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Functional Textiles and Advanced Materials, College of Chemistry and Chemical Engineering Qingdao University, Qingdao 266071, China. Electronic address: dongzhh11@163.com.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Nov; Vol. 280 (Pt 2), pp. 135878. Date of Electronic Publication: 2024 Sep 21.
DOI: 10.1016/j.ijbiomac.2024.135878
Abstrakt: Challenges currently faced by phosphorus-based flame retardants for cotton fabrics include reduced fabric strength after treatment, high smoke release during combustion, formaldehyde release from commercial phosphorus-based flame retardants and poor flame retardant durability after treatment. In the present work, a P/N/B synergistic flame retardant TBST is synthesized using phosphoric acid, cyanuric acid, boric acid, pentaerythritol, etc. The phosphorus‑nitrogen‑boron atomic ratio is 2:3:1, and it is successfully prepared on cotton fabric to prepare TBST/Cotton. When the weight gain rate is 29.8 %, the LOI value is 41.6 ± 0.3 %, indicating that TBST/Cotton has excellent flame retardant performance. At the same time, in the vertical flame test, the length of residual carbon is 5.6 cm. In addition, the THR and HRR are reduced by 58.4 % and 91.9 % respectively compared to Cotton, indicating that TBST/Cotton has excellent combustion performance. In addition, compared to the residual carbon content of Cotton at 710 °C, the residual carbon content of TBST/Cotton in nitrogen increased by 27.79 %. For a 30 % increase in weight, the increase in longitudinal mechanical strength is 23.1 %. Inferred the decomposition mechanism and flame retardant mechanism of TBST/Cotton. TBST/Cotton has the advantages of good flame retardant durability and enhanced mechanical properties, and the reinforcement mechanism of TBST has been speculated.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. All the authors listed have approved the manuscript enclosed.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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