辐射调节面料:实现自我适应的辐射冷却和动态的身体辐射操纵
Xin Hu1,2, Yingbo Zhang3, Wei Cai1,2
1Materials Synthesis and Processing Lab, School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|August 6, 2025
概括
这项研究引入了一种新型的自适应辐射冷却面料 (SARCF),通过改变其红外发射率来调节温度. 该面料提供了增强的保温和冷却性能,用于个人热管理.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 织工程 织工程 织工程
背景情况:
- 有效的热管理对于各种应用非常重要.
- 辐射冷却提供了一种被动的温度调节方法.
- 调节用于辐射冷却的织品发射率仍然是一个未经探索的领域.
研究的目的:
- 开发和演示具有可调节红外发射功率的自适应辐射冷却面料 (SARCF).
- 研究W-VO2纳米颗粒在织品中对排放性调节的潜力.
- 为了评估所开发的面料的热性能和强度.
主要方法:
- 通过在低排放性 (低e) 织物上沉积添加二氧化 (W-VO2) 纳米颗粒来制造SARCF.
- 用纳米多孔聚乙烯 (NanoPE) 接涂层织物.
- 通过室内和室外测试对太阳反射率,红外发射强度对比度 (Δɛ) 和热性能进行表征.
主要成果:
- 由于W-VO2.2.的温度诱导的相变,SARCF实现了高太阳反射率 (85.19%) 和显著的发射率对比度 (Δɛ,34.82%),这是由于W-VO2.2的温度诱导的相变.
- SARCF表现出优越的升温 (3°C高于低E面料) 和冷却 (4.67°C低于棉花) 性能.
- 织物表现出极好的强度,在10个洗周期后保留了96%的Δε,在2000个磨损周期后保留了94.8%的Δε.
结论:
- 一种新型的自适应辐射冷却面料 (SARCF) 已经成功开发出来.
- 该SARCF通过温度诱导的发射率变化和高太阳反射率有效调节辐射冷却功率.
- 这一进步对下一代个人热管理系统具有重大潜力.
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