Chitosan incorporation for improving the dimensional stability of PLA aerogel encapsulated phase change materials
Yang, Xiao-Mei; Zhou, Mei-Hui; Arevalo, Pedro Rincon; Mesa, Luis Soliverdi; Yin, Guang-Zhong (2023-08-15)
Avaa tiedosto
Sisältö avataan julkiseksi: 15.08.2025
Elsevier
15.08.2023
Yang, X.-M., Zhou, M.-H., Rincón Arévalo, P., Soliverdi Mesa, L., & Yin, G.-Z. (2023). Chitosan incorporation for improving the dimensional stability of PLA aerogel encapsulated phase change materials. Materials Letters, 351, 135050. https://doi.org/10.1016/j.matlet.2023.135050
https://creativecommons.org/licenses/by-nc-nd/4.0/
© 2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http:/creativecommons.org/licenses/by-nc-nd/4.0/
https://creativecommons.org/licenses/by-nc-nd/4.0/
© 2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http:/creativecommons.org/licenses/by-nc-nd/4.0/
https://creativecommons.org/licenses/by-nc-nd/4.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202406054235
https://urn.fi/URN:NBN:fi:oulu-202406054235
Tiivistelmä
Abstract
Chitosan (CH) was utilized to improve the shape stability and load resistance of Polylactic acid (PLA) aerogel encapsulated PCM during phase change. Specifically, PLA aerogel with high porosity (>90 %) was prepared first, and then soaked in ethanol and subsequently CH solution, to functionalize PLA aerogel. The aerogel is used to encapsulate paraffin to obtain a shape-stable bio-based PCM. We conduct a comprehensive analysis of its anti-leakage, shape stability, and phase transition properties. The results showed that the CH-modified PCM kept a high latent heat (169.5 J/g), maintained excellent anti-leakage performance, had stronger resistance to deformation in molten state, and improved anti-leakage performance under load. Combining the convenience and environmental protection of material preparation and modification, and the excellent performance of final PCM, this material is expected to be practically applied in building temperature regulation and solar energy capture.
Chitosan (CH) was utilized to improve the shape stability and load resistance of Polylactic acid (PLA) aerogel encapsulated PCM during phase change. Specifically, PLA aerogel with high porosity (>90 %) was prepared first, and then soaked in ethanol and subsequently CH solution, to functionalize PLA aerogel. The aerogel is used to encapsulate paraffin to obtain a shape-stable bio-based PCM. We conduct a comprehensive analysis of its anti-leakage, shape stability, and phase transition properties. The results showed that the CH-modified PCM kept a high latent heat (169.5 J/g), maintained excellent anti-leakage performance, had stronger resistance to deformation in molten state, and improved anti-leakage performance under load. Combining the convenience and environmental protection of material preparation and modification, and the excellent performance of final PCM, this material is expected to be practically applied in building temperature regulation and solar energy capture.
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