鲜明的彩色冷却结构通过近红外反射和光发光来管理全太阳光谱

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Dongwoo Chae¹, Sang Yeop Lee¹, Hangyu Lim¹

¹Department of Materials Science and Engineering, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea.

ACS applied materials & interfaces

|December 5, 2023

概括

这项研究引入了一种新的彩色辐射冷却 (CRC) 油漆,使用光剂以以鲜的颜色高效地冷却表面. 开发的CRC材料在各种应用中显示出显著的温度降低和增强的耐用性.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
热力学是一种热力学.

背景情况:

彩色辐射冷却 (CRC) 介绍了一种被动冷却方法,可以保持对象的美学.
现有的CRC技术缺乏对生动色彩,性能,耐用性和结构灵活性同时进行全面的调查.

研究的目的:

开发一种新的彩色辐射冷却结构,利用光剂提高性能和美学效果.
调查开发的CRC结构的材料特性,性能和耐久性.

主要方法:

设计了一种彩色的冷却结构,其中有一个近红外 (NIR) 反射的底层和一个嵌入的聚合物矩阵顶层.
通过户外白天测量和理论验证来评估结构的冷却性能.
通过疏水性测试和暴露于紫外线辐射和脱离离子水来评估耐用性.

主要成果:

该CRC结构呈现出鲜的色彩 (红色,色,黄色),并且可涂料,疏水,耐UV和水.
户外测量显示,与白色油漆相比,红色,色和黄色的温度分别降低了4.7°C,7.2°C和7.4°C,相比之下,白色油漆的温度分别降低了4.7°C,7.2°C和7.4°C.
由于NIR反射和光发光,色结构的最大温度降低为16.1°C.

结论:

开发的基于的CRC结构为被动冷却提供了一个功能,耐用和美观的解决方案.
展示的柔性薄膜型CRC结构突出了各种彩色冷却技术的潜在应用.

关键词:

在NIR中反射反射.彩色的辐射冷却摄影光的发光效应降低温度降低温度的方法鲜的颜色和生动的颜色.

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