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Thermal insulation and antibacterial honeycomb aerogel derived from carboxymethyl chitosan for integrated sound absorption

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Abstract

In this study, the pore structure of carboxymethyl chitosan aerogel (CCSA) was modulated by adjusting the concentration of carboxymethyl chitosan (CCS) in combination with targeted freezing. The hierarchically porous structures were obtained by the freeze-drying process. The results show that the CCSAs prepared by directional freezing have excellent broadband acoustic absorption properties, and also expand the scope of application of CCSAs in practical applications due to the excellent thermal and mechanical properties of the prepared CCSAs. Since the CCSAs prepared by directional freezing still has excellent antimicrobial properties, it also provides a new strategy for aerogels with acoustic properties to be used in medical industry applications.

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The data presented in this study are available on request from the corresponding author.

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Acknowledgments

This work was supported by National Natural Science Foundation of China (grant numbers 11702187) and Natural Science Foundation of Tianjin City (18JCQNJC03400). We would like to thank the Analytical andTesting Center of Tiangong University for the work related to surface morphology and chemical structure of composite fabric.

Funding

This work was supported by the National Natural Science Foundation of China (grant number 11702187), 2021 Tianjin Postgraduate Research Innovation Project (grant number 2021YJSB235), Research Fund of China National Textile and Apparel Council (grant number 2022033).

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KZ: designed the experiment, experimented, and wrote the manuscript. CWL: The corresponding author, Offered Suggestions for the experiments. XW: Assisted with the experiments, prepared Fig. s and tables, polished the English language. LL, HP, TR, LZ: Offered suggestions for the characterizations of materials. JHorngL: Formal analysis, Offered Suggestions for the experiments. TTL: Corresponding author, critical revision of the article, final approval of the article.

Corresponding authors

Correspondence to Ching-Wen Lou or Ting-Ting Li.

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Zang, K., Wang, X., Liu, L. et al. Thermal insulation and antibacterial honeycomb aerogel derived from carboxymethyl chitosan for integrated sound absorption. Cellulose 31, 3573–3588 (2024). https://doi.org/10.1007/s10570-024-05815-x

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  • DOI: https://doi.org/10.1007/s10570-024-05815-x

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