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Developing the functional cotton fabric with N-halamine antibacterial structure based on DA/PEI

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Abstract

In this study, functional coatings with N-halamine structure were formed on cotton fabrics by dopamine (DA) auto-deposition and DA/Polyethyleneimine (PEI) covalent co-deposition, respectively. SEM、UV-Vis and XPS had confirmed the deposition of DA and DA/ polydopamine (PDA) on the cotton fabrics. When the mass ratio of DA/PEI was 1:1.5, a uniform functional coating was formed. XRD had indicated that the coating and the oxidative sodium hypochlorite solution did not affect the crystal structure of cellulose. The DA/PEI co-deposited modified cotton fabric had excellent antibacterial property after chlorination, and the inactivation rate against E coli and S aureus could reach 100% with a contact time of 30 min. In vitro cell cytocompatibility studies demonstrated that the DA/PEI co-deposited modified cotton fabric has good biocompatibility. The functional coating on the cotton fabric remained stable after 50 washing cycles. The UPF values and the wrinkle recovery angle (WRA) tests showed that the DA/PEI co-deposited coating imparted great durable press and UV protective properties to the cotton fabric. The breaking strength loss rate of the modified cotton fabrics after chlorination was about 20%, which had little effect on the wearing property.

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Funding

We are grateful to the scientific research funding project of the “Five Strategies” of Education Service of Industrial Technology Research Institute of Liaoning Universities (No.2018LY027).

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Jiansheng Wan, Hong Li, and Jun Yan designed the experiments and referenced conception. Xiaoyu Cai and Yongping Liao participated in the experiments. Jiansheng Wan analyzed the data. Jiansheng Wan, Hong Li, and Xiaoyu Cai wrote the paper. All authors had read and agreed to the published version of the manuscript.

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Correspondence to Hong Li.

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Wan, J., Li, H., Cai, X. et al. Developing the functional cotton fabric with N-halamine antibacterial structure based on DA/PEI. Cellulose 29, 9953–9967 (2022). https://doi.org/10.1007/s10570-022-04876-0

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  • DOI: https://doi.org/10.1007/s10570-022-04876-0

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