材料科学
润湿
电子设备和系统的热管理
发射率
湿度
水分
热导率
热传导
水运
温度梯度
膜
复合材料
光电子学
环境科学
机械工程
环境工程
气象学
化学
光学
水流
工程类
生物化学
物理
作者
Leqi Lei,Shuo Meng,Ying Si,Shuo Shi,Hanbai Wu,Jieqiong Yang,Jinlian Hu
标识
DOI:10.1007/s40820-024-01359-8
摘要
Thermoregulatory textiles, leveraging high-emissivity structural materials, have arisen as a promising candidate for personal cooling management; however, their advancement has been hindered by the underperformed water moisture transportation capacity, which impacts on their thermophysiological comfort. Herein, we designed a wettability-gradient-induced-diode (WGID) membrane achieving by MXene-engineered electrospun technology, which could facilitate heat dissipation and moisture-wicking transportation. As a result, the obtained WGID membrane could obtain a cooling temperature of 1.5 °C in the "dry" state, and 7.1 °C in the "wet" state, which was ascribed to its high emissivity of 96.40% in the MIR range, superior thermal conductivity of 0.3349 W m-1 K-1 (based on radiation- and conduction-controlled mechanisms), and unidirectional moisture transportation property. The proposed design offers an approach for meticulously engineering electrospun membranes with enhanced heat dissipation and moisture transportation, thereby paving the way for developing more efficient and comfortable thermoregulatory textiles in a high-humidity microenvironment.
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