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一种高性能被动辐射冷却元结构,具有简斯湿透性和导热
Peibo Du1, Xingshun Zhao1, Xiongwei Zhan1
1National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|June 28, 2024
概括
这项研究介绍了一种新的冷却元结构,它结合了被动辐射,汗蒸发和热传导,以增强个人冷却. 创新的织品可显著降低温度和节省能源,提高可穿戴舒适度.
科学领域:
- 材料科学 材料科学 材料科学
- 织工程 织工程 织工程
- 纳米技术 纳米技术
背景情况:
- 越来越多的工业化和全球变暖需要节能解决方案来制冷和预防与热有关的疾病.
- 现有的冷却织品在实际条件下经常在汗水管理和可穿戴舒适性方面表现出局限性.
研究的目的:
- 开发一个具有集成的被动辐射,热导和汗水蒸发能力的等级冷却元结构.
- 为了提高可穿戴的舒适性,并解决当前制冷织品的局限性.
主要方法:
- 使用电回旋策略制造一个层次冷却元织物.
- 光学属性的表征,包括太阳反射率和红外辐射选择性.
- 评估湿度疏散特性 (水蒸气传输和定向水传输) 和导热.
主要成果:
- 超级织物实现了高太阳反射率 (99.7%) 和选择性红外辐射 (92.4%).
- 证明了强大的吸湿能力 (2985 g m−2 d−1 WVT) 和传热能力.
- 户外实验显示,冷却效应为13.8°C (干燥) 和19.3°C (出汗),每年可能节省约19.3%的能源.
结论:
- 开发的冷却元结构有效地整合了多个冷却机制,以获得卓越的性能.
- 这种织品具有出色的透气性,机械强度,可洗性和成本效益.
- 这种高性能元织物为下一代个人冷却织品提供了有希望的进步.
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