基于二氧化的可回收和绿色涂层,用于高效的辐射冷却
Jing Lu1, Yile Fan1, Xing Lou1
1State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Biomimetics (Basel, Switzerland)
|January 22, 2024
概括
研究人员使用二氧化和甲基纤维素开发了一种环保的辐射冷却涂层. 这种绿色涂层实现了显著的环境下冷却,为全球变暖能源挑战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
- 可持续能源 可持续能源
- 纳米技术纳米技术
背景情况:
- 全球变暖需要创新的冷却解决方案.
- 辐射冷却提供了一个被动的,节能的替代方案.
- 商业化辐射冷却在性能和可扩展性方面面临挑战.
研究的目的:
- 开发一种可扩展,具有成本效益和环保的辐射冷却涂层.
- 为了研究一种新型甲基纤维素-二胺复合物的冷却性能.
- 评估开发的涂层的商业应用潜力.
主要方法:
- 使用甲基纤维素,二氧化和水制造绿色辐射冷却涂层.
- 涂层的光学特性 (太阳反射率和热发射率) 的表征.
- 在现场测量涂层在直接阳光下下降的环境下温度.
主要成果:
- 该涂层实现了高太阳反射率 (94%) 和热发射率 (0.9).
- 在阳光明的日子里,最高环境下温度下降6.1°C.
- 涂层在阴天显示温度下降2.5°C. 在阴天显示温度下降2.5°C.
- 制造过程是可扩展的,具有成本效益,并使用天然来源的材料.
结论:
- 开发的甲基纤维素二氧化涂层是被动辐射冷却的一个有前途的解决方案.
- 它的环保性和成本效益支持商业可行性.
- 这种方法提供了一个可持续的途径,以减轻全球变暖带来的能源挑战.
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