导热辐射冷却膜用于灵活设备的热管理
Xiyu Yu1,2, Xiangyu Sun1, Ang Wang1
1Institute of Thermal Science and Technology, Shandong University, Jinan 250061, China.
ACS applied materials & interfaces
|July 7, 2025
概括
一种新的导热辐射冷却 (TCRC) 薄膜增强了灵活的电子热管理. 这种先进的材料提供卓越的散热和机械性能,可靠的设备操作.
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:
- 灵活的电子设备需要有效的热管理解决方案.
- 现有的辐射冷却材料往往缺乏足够的导热性和机械强度,以适应苛刻的应用.
- 散热对于灵活设备的性能和寿命至关重要.
研究的目的:
- 为柔性电子产品开发具有增强机械性能的导热辐射冷却 (TCRC) 薄膜.
- 为了同时提高太阳反射率,红外辐射率和导热率.
- 为经历复杂变形的设备提供多功能热管理解决方案.
主要方法:
- 将六边形化 (h-BN) 纳米板和 (Al2O3) 纳米球纳入聚二甲基 (PDMS) 基质.
- 制造的TCRC膜的太阳反射率,红外辐射率和导热率的表征.
- 在阳光直射和室内条件下评估薄膜的冷却性能.
主要成果:
- 该TCRC薄膜实现了84.2%的太阳反射率和98.3%的宽带红外发射率.
- 与PDMS矩阵相比,热导率被提高了两倍.
- 在阳光下显示的高温环境降温为13.7°C,室内降温为5.9°C.
- 呈现出优越的抗磨损性,疏水性,阻燃性和抗紫外线.
结论:
- 开发的TCRC膜为灵活电子产品的热管理提供了有效的解决方案.
- 在PDMS中h-BN和Al2O3纳米结构的组合增强了辐射冷却和机械性能.
- 这种多功能材料解决了当前灵活设备冷却技术的关键局限性.
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