通过微相分离的水凝组合辐射和蒸发冷却的高强度透明被动冷却涂层
Jing Shang1, Jiahe Zhang1, Yihe Zhang1
1Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China.
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|May 29, 2024
概括
研究人员开发了一种透明的水凝膜,用于被动冷却. 这种创新材料实现了高光透射率和红外辐射率,显著降低太阳能电池和显示器的温度,同时节省能源.
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:
- 透明的被动冷却材料对于太阳能电池和显示器等设备至关重要.
- 当前材料在平衡光传输与有效的热管理方面面临着挑战.
- 高光传输往往导致不必要的热吸收,限制冷却效率.
研究的目的:
- 开发一种新的透明材料,用于有效的被动冷却.
- 在需要高光透光度的应用中提高冷却性能.
- 探索用于热管理的水凝中微尺度相位分离的潜力.
主要方法:
- 制造一个具有微相分离的聚 ((N-异烯烯胺-协同烯胺) 水凝膜.
- 光学性质 (光透率) 和热性质 (红外辐射率) 的表征.
- 对光伏电池板和柔性发光二极管屏幕进行现场测试.
主要成果:
- 水凝膜实现了>96%的光透率和95%的红外发射率.
- 证明了显著的温度降低:太阳能电池板的9.14°C和显示器的7.68°C.
- 模拟预测在各种气候条件下每年可节省大量能源 (32.76-51.65 MJ m-2年-1).
结论:
- 在水凝中的微尺度相位分离可以实现强大的透明被动冷却.
- 开发的材料为光电子设备的节能冷却提供了一个有前途的解决方案.
- 这种进步有助于开发可持续材料,以实现碳中和的未来.
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