Abstract
To endow lyocell fabric with flame retardant and antibacterial properties, tri (2-hydroxyethyl) isocyanurate was utilized to synthesize a phosphorus and nitrogen-containing flame retardant (ATHEIC), which was then used to prepare flame retardant lyocell fabric (FR-lyocell). The antibacterial properties of FR-lyocell were achieved by adsorbing copper ions on the fabric surface followed by reducing to copper nanoparticles. The lyocell fabric treated with 30 wt% ATHEIC solution possessed an LOI value of 35.8%, which remained 31.9% even after 20 laundering cycles. The char residue at 800 °C of FR-lyocell under nitrogen and air atmosphere was 48.6 wt% and 27.3 wt%, respectively, indicating excellent char forming performance. Antibacterial tests showed that the modified lyocell fabric had a bacteriostatic zone width of 5.3 mm and 4.6 mm against E. coli and S. aureus, respectively. This work provides a new approach to fabricate multifunctional lyocell fabric with flame retardant and antibacterial properties.
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Acknowledgments
The authors are very grateful to the financial supports of the Open Research Fund of State Key Laboratory of Biobased Fiber Manufacturing Technology. (No. SKL202202).
Funding
This study was supported by the financial of the Open Research Fund of State Key Laboratory of Biobased Fiber Manufacturing Technology. (No. SKL202202).
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JZ Supplementary experiments, Writing. MX Formal analysis, Investigation, Resources. LJ Writing-Original Draft. YR Conceptualization, Resources, Formal analysis, Supervision, Methodology. XL Formal analysis, Visualization, Review and Editing. JZ and MX contribute equally to the work.
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Zhao, J., Xiao, M., Jiang, L. et al. Fabricating of flame retardant and antibacterial lyocell fabrics through the finishing of phosphorus and nitrogen-containing flame retardant and coating of copper nanoparticles. Cellulose 31, 2667–2683 (2024). https://doi.org/10.1007/s10570-024-05756-5
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DOI: https://doi.org/10.1007/s10570-024-05756-5