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Facile synthesis of bio-based phosphorus/nitrogen compound for high efficiency flame retardant finishing of cotton fabric

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Abstract

The high flammability of cotton fabric limits its wide application in interior decoration and clothing. In this work, a phosphorus/nitrogen compound named chitosan modified ammonium polyphosphate (CS@APP) was facilely prepared by mechanochemical strategy and used for flame retardant finishing of cotton fabric (CF). The characterization results showed that CS@APP was successfully synthesized through the –NH3+–OP– bond. The CF with CS@APP showed remarkable reductions of 88.7% and 61.3% in peak heat release rate (pHRR) and total heat release rate than CF. Also, the limiting oxygen index of flame retardant CF reached 53.5%, and the damaged length during the vertical flammability test was 84 mm. The flame-retardant mechanism was speculated on char residues and pyrolysis gas. The work provides new sights on the facile synthesis of phosphorylated chitosan and explores a new way to the utilization of biological resources.

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Acknowledgments

The authors gratefully acknowledge the National Natural Science Foundation of China (No. 51776101), the Natural Science Foundation of Shandong Province (ZR2021MB083), and Shandong Provincial Major Science and Technology Innovation Program (2019JZZY010821).

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YJR: Investigation, Methodology, Writing–original draft, Project administration. JXP: Investigation, Data curation. YFW: Visualization, Formal analysis. YXW: Formal analysis, Software. TTF: Formal analysis, Validation, Investigation. LL: Writing– review & editing, Supervision. CMJ: Writing – review & editing, Supervision. XLC: Conceptualization, Writing – review & editing, Supervision.

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Correspondence to Chuanmei Jiao or Xilei Chen.

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Ren, J., Piao, J., Wang, Y. et al. Facile synthesis of bio-based phosphorus/nitrogen compound for high efficiency flame retardant finishing of cotton fabric. Cellulose 30, 1245–1264 (2023). https://doi.org/10.1007/s10570-022-04923-w

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  • DOI: https://doi.org/10.1007/s10570-022-04923-w

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