纤维球架构用于有效的白天辐射冷却和湿度管理
Dhandayuthapani Thiyagarajan1, Shichen Li1, Bong-Kee Lee1,2
1School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea.
Nano letters
|March 26, 2025
概括
这项研究引入了一种用于个人热管理的新纳米织物. 这种先进的织物提供了出色的太阳反射率和辐射率,在炎热的户外条件下显著降低皮肤温度.
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
- 热管理 热管理
背景情况:
- 在炎热的环境中,个人热管理对于舒适和安全至关重要.
- 现有的织品往往缺乏足够的太阳反射性,排放性和水分管理.
- 需要先进的材料来解决这些限制,以实现有效的冷却.
研究的目的:
- 设计和开发一种具有集成辐射冷却和吸湿特性的新型纳米织物.
- 评估面料在反射太阳光,发射热辐射和管理水分方面的性能.
- 评估其在户外条件下进行个人热管理的潜力.
主要方法:
- 使用纤维球体架构制造纳米织物的制造,具有特定的水友和疏水层 (多烯-SiO2和PVDF-co-HFP-TiO2-Al2O3).
- 织物的太阳反射率 (93%) 和发射率 (~0.95) 的表征.
- 在直接阳光下进行实验测试,以测量皮肤温度的降低和下环境的辐射冷却能力.
主要成果:
- 该纳米织物表现出极好的太阳反射性和高发射性.
- 皮肤温度降低了15°C,相比于在阳光直射下的棉织品.
- 在中午达到5°C,夜间达到2°C的环境下辐射降温.
结论:
- 开发的纤维球纳米织物为个人热管理提供了一个有前途的解决方案.
- 集成的辐射冷却和湿度管理能力提高了其适用于炎热环境的适用性.
- 这项技术为先进的制冷织品和热控制解决方案铺平了道路.
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