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Low-temperature and efficient crosslinking of lyocell knitted fabric with an eco-friendly diepoxy agent for fibrillation resistance

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Abstract

Lyocell fiber is a low-carbon fiber and has many remarkable characteristics, which makes it a good application prospect in the future. However, lyocell fiber is prone to fibrillate under wet friction conditions. This work aimed to prepare lyocell fabric with low fibrillation tendency by an eco-friendly, low-temperature and efficient crosslinking method. Here, the N1, N6-bis(oxiran-2-ylmethyl)hexane-1,6-diamine crosslinked with lyocell fabric to achieve fibrillation resistance. The dosage of crosslinking agent, pH values of crosslinking solution, temperature, and time on fibrillation tendency of lyocell fabrics were investigated. Scanning electron microscopy was used to observe fibrillation tendency, which showed that the lyocell fabric impregnated in 5% EH and pH = 10 solution at 40 °C for 30 min had almost no microfibrils. In addition, the results showed that the whiteness, mechanical property retained, dyeing performance of crosslinked lyocell fabric did not reduce, and the wear resistance was enhanced. This study demonstrated a potential and practical application of this crosslinking agent to diminish the fibrillation of lyocell fabrics.

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Acknowledgments

The authors gratefully acknowledge the financial support from the Fundings.

Funding

This work was supported by (1) Shandong Province Key Technology R&D Program for Middle and Small Enterprises, Grant No. 2021TSGC1189; (2) Shandong Province Key Technology R&D Program, Grant No. 2023CXGC010612, 2023CXGC010504, and 2023CXPT022; (3) State Key Laboratory for Biofibers and Eco-textiles, Grant No. ZDKT202008, ZDKT202103 and ZKT33; (4) Shandong Province Department of Science and Technology, Grant No. ZR2020QE099.

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Contributions

XL: conceptualization, methodology, validation, data curation, writing – original draft, writing—review and editing. KF: supervision, project administration, funding acquisition. LS: writing—original draft preparation, validation, supervision. ZX: software, investigation supervision. BF: validation. QZ: data curation. ZX: conceptualization. RX: supervision, project administration, funding acquisition.

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Correspondence to Kuanjun Fang or Ruyi Xie.

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Li, X., Fang, K., Shi, L. et al. Low-temperature and efficient crosslinking of lyocell knitted fabric with an eco-friendly diepoxy agent for fibrillation resistance. Cellulose 31, 717–735 (2024). https://doi.org/10.1007/s10570-023-05618-6

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  • DOI: https://doi.org/10.1007/s10570-023-05618-6

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