Abstract
Chitosan is a green substance that has antibacterial, non-toxic, and good biocompatibility properties. It is becoming more and more popular in the food, pharmaceutical, and textile industries. In this work, paraffin@chitosan microcapsules were synthesized through a single coacervation method, then modified zinc oxide (ZnO) nanoparticles were grafted onto paraffin@chitosan microcapsules to prepare ZnO/chitosan composite microcapsules through Michael addition reaction. The obtained ZnO/chitosan composite microcapsules were further treated on the wool fabric via a thiol-ene click reaction. After treatment, cuticle layers of wool fibers became tender, and the wool fiber surface was covered with ZnO/chitosan composite microcapsules. The bacterial inhibition rates of treated wool fabric could reach 98.9% and 97.2% against the gram-positive bacteria (Staphylococcus aureus) and gram-negative bacteria (Escherichia coli), which was attributed to the synergistic antibacterial effect of chitosan and ZnO. The treated wool fabric also presented enhancement of superhydrophobicity with a water contact angle of 160.9°. Furthermore, the thermal imager analysis of treated wool fabric illustrated that it had a good thermal energy storage performance due to the loaded paraffin.
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Acknowledgments
The authors acknowledge the financial support from the Innovation Team and Talents Cultivation Program of National Administration of Traditional Chinese Medicine (ZYYCXTD-D-202206), Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University and Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University.
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This work was financially supported by Innovation Team and Talents Cultivation Program of National Administration of Traditional Chinese Medicine (ZYYCXTD-D-202206), Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University and Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University (18050033251903).
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ZC: investigation, methodology, validation, data curation and analysis, and writing-original draft. YN: investigation, validation, and methodology. WZ: investigation and validation. ZW: investigation and validation. RM: investigation and validation. ZJ: conceptualization, supervision, and project administration. KC: conceptualization, supervision, data curation and analysis, project administration, funding acquisition, and writing-review and editing.
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Chen, Z., Ni, Y., Zhang, W. et al. Fabrication of multiple protective fabric based on ZnO/chitosan composite microcapsules via thiol-ene click modification. Cellulose 30, 8023–8036 (2023). https://doi.org/10.1007/s10570-023-05389-0
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DOI: https://doi.org/10.1007/s10570-023-05389-0