An eco-friendly, highly efficient, and transparent coating derived from guar gum and citric acid for flame retardant treatment of cotton fabrics.

Autor: Kalali EN; Department of Fire Safety Engineering, Faculty of Geosceince and Environmental Engineering, Southwest Jiaotong University, Chengdu, China., Abdel-Mohsen AM; Institute of Macromolecular Chemistry, Czech Academy of Sciences, 16200 Praha, Czech Republic; CEITEC-Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, Brno 61200, Czech Republic; Pretreatment and Finishing of Cellulosic Based Textiles Department, Textile Industries Research Institute, National Research Centre, 33 EL Buhouth St., Dokki, Giza 12622, Egypt., Shabestari ME; Department of Fire Safety Engineering, Faculty of Geosceince and Environmental Engineering, Southwest Jiaotong University, Chengdu, China., Pop-Georgievski O; Institute of Macromolecular Chemistry, Czech Academy of Sciences, 16200 Praha, Czech Republic., Stary Z; Institute of Macromolecular Chemistry, Czech Academy of Sciences, 16200 Praha, Czech Republic., Abdel-Rahman RM; Institute of Macromolecular Chemistry, Czech Academy of Sciences, 16200 Praha, Czech Republic., Zhao C; Department of Fire Safety Engineering, Faculty of Geosceince and Environmental Engineering, Southwest Jiaotong University, Chengdu, China., Wang X; State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China. Electronic address: wxcmx@ustc.edu.cn., Esmaeili N; Department of Civil, Environmental and Natural resources engineering, Luleå University of Technology, Luleå 97187, Sweden., Lotfian S; Department of Naval Architecture, Ocean and Marine Engineering, University of Strathclyde, Glasgow G4 0LZ, UK., Petrus J; CEITEC-Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, Brno 61200, Czech Republic.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2023 Dec 31; Vol. 253 (Pt 7), pp. 127506. Date of Electronic Publication: 2023 Oct 18.
DOI: 10.1016/j.ijbiomac.2023.127506
Abstrakt: A highly efficient, bio-ecofriendly, and transparent flame retardant (FR) for cotton fabric was developed and deposited onto the cellulose skeletal structure of cotton fabric through a one-pot sol-gel process. The flame retardant functional coating is composed of ammonium polyphosphate (APP), guar gum (GG), citric acid (CA), and a negligible amount of catalyst. Cotton fabrics were impregnated with different concentrations of ammonium polyphosphate and guar gum, with citric acid as a crosslinking agent. The overall crosslinking and grafting process was proven by FTIR and XPS. Based on the results, the designed coating exhibits over 90 % transmittance in the visible region. A 15 g/m 2 flame-retardant coating induces excellent flame retardant efficiency at ultra-low flame-retardant concentrations of less than 6.25 wt%. Only a 5.25 wt% flame retardant concentration demonstrated condensed phase action, which resulted in 58.5 % and 73.6 % reductions in the pHRR and THR, respectively. Moreover, the limiting oxygen index (LOI) value showed a 74 % increase. The mechanical performance of FR coated cotton fibers was slightly reduced.
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.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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