生物模拟金字塔结构片用于增强建筑物的辐射冷却
Qian-Hao Pan1, Mei-Hua Wang1, Zong-Ying Huang1
1Shenzhen Key Laboratory of Sustainable Biomimetic Materials, Department of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Sustainable Biomimetic Materials and Green Energy, Institute of Innovative Materials, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, 518055, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|February 14, 2025
概括
本研究介绍了一种具有微金字塔结构的生物模拟辐射冷却膜,用于高效的建筑热管理. 创新的薄膜实现了高太阳反射率和红外辐射率,为被动冷却提供了具有成本效益的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 热力工程是热力工程中的一个.
背景情况:
- 辐射冷却提供了被动的,节能的建筑热管理.
- 可扩展,稳定和经济高效的辐射冷却器仍然是一个挑战.
- 优化太阳反射率和大气窗口发射率至关重要.
研究的目的:
- 开发一种具有增强性能和可扩展性的仿生辐射冷却膜.
- 为了研究一种微型金字塔结构,灵感来自耐热生物.
- 创建一个成本效益高的解决方案,用于被动建筑冷却.
主要方法:
- 分析了一种仿生微金字塔结构模型.
- 使用模板,介电材料,聚合物和PVDF涂层制造了一个辐射冷却膜.
- 集成 каучук的机械性能和防尘的疏水性.
主要成果:
- 实现了97.3%的太阳反射率.
- 在8-13μm大气窗口内,暴露的红外光辐射>98%.
- 证明了强大的拉力/反弹性能和耐尘性.
结论:
- 生物模拟微金字塔膜显示了被动建筑热管理的巨大潜力.
- 制造方法简单,具有成本效益,适合大规模生产.
- 这种方法解决了最先进的辐射冷却技术的关键挑战.
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