Chitosan incorporation for improving the dimensional stability of PLA aerogel encapsulated phase change materials

被引：0
|
作者：
Yang, Xiao-Mei [1 ]
Zhou, Mei-Hui [2 ]
Arevalo, Pedro Rincon [3 ]
Mesa, Luis Soliverdi [3 ]
Yin, Guang-Zhong [3 ]
机构：
[1] Univ Oulu, Fibre & Particle Engn, POB 4300, FI-90014 Oulu, Finland
[2] Univ Rey Juan Carlos, Calle Tulip S-N, Madrid 28933, Spain
[3] Univ Francisco Vitoria, Ctra Pozuelo Majadahonda Km 1 800, Madrid 28223, Spain
来源：
MATERIALS LETTERS | 2023年 / 351卷
关键词：
Phase change materials; Chitosan; Aerogel; Energy storage; PLA;
D O I：
10.1016/j.matlet.2023.135050
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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 antileakage, 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 defor-mation 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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页数：5
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