期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 224, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.solmat.2021.110985
关键词
MicroPCMs; Polypyrrole; Flexible phase change textile; Thermal energy storage; Photothermal conversion
资金
- Fundamental Research Funds for the Central Universities [2232019G-03, 2232019G04]
The study developed flexible phase change textiles with high photothermal storage efficiency and elasticity, demonstrating significant potential for applications in solar energy storage.
The design of flexible phase change textiles with photothermal conversion/storage performance provides a new direction for their potential applications in advanced solar energy storage. Herein, photothermal phase change microcapsules (microPCMs) were facilely prepared via surface modification of microPCMs with photothermal converter polypyrrole (PPy). A flexible photothermal phase change textile was further fabricated together with polyurethane (PU). The microPCMs coated with merely 1.91 wt% PPy exhibited high photothermal storage efficiency (up to 94.03%) under 1 solar irradiation and high melting enthalpy (231.6 J/g). Meanwhile, the microPCMs/PU composite fiber remained highly elastic (365% elongation) at a loading of 79.45 wt% microPCMs. Additionally, the photothermal phase change textile showed high cycling durability with essentially unchanged performance after 100 heating-cooling cycles. These favorable features of the composite textile grant it great potential for solar energy-related applications.
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