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Preparation of biomass-based green cotton fabrics with flame retardant, hydrophobic and self-cleaning properties

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Abstract

Cotton fabrics have high hydrophilicity and low limiting oxygen index (LOI) value, so they are susceptible to fires and bacterial growth, which endanger people’s lives and property and limit their further application. To solve the issue, the prepared green flame retardant β-cyclodextrin phosphate ammonium salt (β-CPAS) was first used to prepare flame retardant cotton fabric, which was then treated with hydrophobic agent phosphorylated hexadecanol (HP) to obtain flame retardant and hydrophobic cotton fabrics (FR-H-cotton) by the traditional dip-dry-cure technique. Fourier transforms infrared spectroscopy showed that β-CPAS and HP were covalently bonded to the cotton sample by a P–O–C bond. The treated cotton was self-extinguished under a vertical flame and had an LOI value of up to 31%. Cone calorimeter analysis showed that both the total heat release rate and peak heat release rate of treated cotton were decreased by about 80% than the control sample. Furthermore, the treated samples have excellent hydrophobicity and self-cleaning capabilities because of the presence of long-chain hexadecanol. Interestingly, FR-H-cotton remained excellent flame retardant and hydrophobic properties after 50 laundering cycles. This green and multifunctional cotton fabric has excellent potential for future market applications.

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All data generated or analyzed in this study are included in this paper and its Supplementary Information document.

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Acknowledgments

The authors are very grateful for the financial support of the Open Research Fund of the State Key Laboratory of Biobased Fiber Manufacturing Technology. (No. SKL202202).

Funding

This study was supported by the Open Research Fund of the State Key Laboratory of Biobased Fiber Manufacturing Technology. (No. SKL202202).

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Xinke Zhou: Investigation, Experiments, Writing-original draft. Xiaowei Su: Formal analysis, Experiments, Writing-revision. Jieyun Zhao: Investigation, Methodology, Formal Analysis. Yansong Liu: Visualization, Formal analysis. Zhiwei Xu: Verification, Editing, Review. Yuanlin Ren: Validation, Supervision, Writing-Review. Xiaohui Liu: Supervision, Conceptualization, Editing. Xinke Zhou and Xiaowei Su contribute equally to the work.

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Correspondence to Yuanlin Ren or Xiaohui Liu.

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Zhou, X., Su, X., Zhao, J. et al. Preparation of biomass-based green cotton fabrics with flame retardant, hydrophobic and self-cleaning properties. Cellulose 31, 3871–3892 (2024). https://doi.org/10.1007/s10570-024-05814-y

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  • DOI: https://doi.org/10.1007/s10570-024-05814-y

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