通过构建层间声桥梁来有效地管理电子设备的热量
Gaojie Han1, Hongli Cheng1, Yuezhan Feng2
1State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, China.
Nature communications
|November 26, 2025
概括
一种新的蜂凝密集化策略显著提高了层叠膜的导热性. 这一突破改善了电子设备的散热,从而实现了高效的环境下冷却.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 热管理 热管理
背景情况:
- 层状薄膜对于热管理至关重要,但受限于通过平面传热.
- 在平面内高的导热率有助于散热热量,但在平面内低的导热率阻碍了整体设备的冷却.
- 克服这一局限性是电子领域先进的热管理解决方案的关键.
研究的目的:
- 开发一种新的策略,用于增强层叠膜中的内平面和横平面导热率.
- 为了研究蜂凝密集方法对热传输特性的影响.
- 通过使用工程膜来实现热生成装置的高效次环境冷却.
主要方法:
- 制造阿拉米德纳米纤维/化纳米板薄膜.
- 应用蜂凝密度化策略来创建层间的语音桥梁.
- 在平面内和通过平面的导热率的表征.
- 评估太阳反射率,红外辐射率和辐射冷却性能.
主要成果:
- 蜂凝密集化策略创造了连续的,齐格扎格的层间音声桥梁.
- 与随机凝密封膜相比,在平面内导热率增加了488.9%,在平面内导热率增加了503.3%,而在平面内导热率增加了503.3%.
- 由于太阳能反射率高和热辐射,工程膜在100mW/cm2时显示出有效的17.2°C的低环境冷却.
结论:
- 蜂凝密集化策略有效地增强了层叠膜中的双向热通路.
- 这种方法显著提高了导热率,解决了当前热管理材料的关键局限性.
- 开发的薄膜为产生热量的电子设备的高效辐射冷却提供了一个有前途的解决方案.
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