材料科学
复合数
相变
过滤(数学)
可穿戴计算机
相(物质)
热的
复合材料
矿物
相变材料
可穿戴技术
化学工程
纳米技术
冶金
工程物理
计算机科学
有机化学
气象学
化学
嵌入式系统
工程类
物理
统计
数学
作者
Yihang Li,Xiaoguang Zhao,Yili Tang,Xiaochao Zuo,Huaming Yang
标识
DOI:10.1002/adfm.202403059
摘要
Abstract The emerging concept of aerogel composite phase change materials (PCMs) represents a promising approach for thermal energy storage and utilization. However, the thermal storage aerogels currently reported usually lack essential aerogel properties, thereby constraining their potential for functional design and advanced applications. Herein, multifunctional thermal storage aerogels with aerogel characteristics and thermoregulation performance are prepared by chemically crosslinking and unidirectional freezing to make functionalized mineral‐based composite PCMs as cavity walls. Thanks to the cross–linked continuous skeleton and retained hierarchical porous, this novel thermal storage aerogel possesses an 89.7% porosity and demonstrates excellent resilience under 80% compression. As the PCMs in the cavity walls can convert phonon transport modes through phase transitions, the thermal storage aerogel has enhanced thermal insulation properties, reaching a thermal conductivity of 29.6 mW m −1 K −1 . Drawing upon the multifunctional properties of thermal storage aerogels, it is demonstrated that thermal storage masks with thermal comfort and health protection, as well as passive thermal management wrist guards capable of harnessing solar radiation for temperature regulation. This work encompasses the exploration of novel approaches in developing advanced thermal management materials to cater to the diverse thermal regulation requirements of PCMs across various domains.
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