高性能传输型白天辐射冷却膜,采用简单且可扩展的方法
Sujin Shao1, Siyuan Jia1, Xiaofeng Jiang1
1Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Education, and International Institute for Frontier Science, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
Advanced materials (Deerfield Beach, Fla.)
|September 9, 2025
概括
一种新方法创建了低成本,可扩展的辐射冷却薄膜,使用 styrene 乙烯 丁烯 styrene (SEBS) 和聚乙烯 (PE). 这些薄膜为个人热管理提供了显著的冷却,降低了成本和环境影响.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 可持续能源 可持续能源
背景情况:
- 辐射冷却织品对于个人热管理至关重要.
- 创造这些织品的传统方法昂贵且对环境有影响.
- 现有的方法在光学性能和可扩展性方面存在局限性.
研究的目的:
- 开发一种新的,具有成本效益和可扩展的方法,用于生产传输类型的辐射冷却膜.
- 为了提高光学性能和减少辐射冷却织品的环境足迹.
- 为个人和工业应用展示开发的薄膜的被动冷却能力.
主要方法:
- 一种新的制备技术涉及将中红外透明固体乙烯,乙乙 (SEBS) 与固体聚乙烯 (PE) 混合在一起.
- 通过溶解SEBS,形成孔隙,从而实现大规模,米尺度的辐射冷却膜的生产.
- 评估了光学性能 (太阳反射率,中红外传导率) 和冷却性能.
主要成果:
- 实现了传输类型辐射冷却膜的计量规模生产.
- 薄膜具有95%的太阳反射率和80%的中红外传输率.
- 在阳光明和阴云条件下,显示出大约4°C和3°C的环境下降温效应.
- 降低了68%的生产成本和92%的二氧化碳排放.
结论:
- 新的SEBS/PE混合方法为制造高性能辐射冷却膜提供了可扩展和可持续的方法.
- 开发的薄膜提供了显著的被动冷却,显示了工业和个人热管理的巨大潜力.
- 这种方法解决了传统技术的局限性,为更广泛采用辐射冷却技术铺平了道路.
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