机械耐用双面织复合材料集成辐射冷却和双功能加热,用于全年热管理
Qi Gao1, A Jun Chang1, Chao-Hua Xue1
1College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China.
ACS applied materials & interfaces
|September 18, 2025
概括
本研究提出了一种耐用的织复合材料,用于全年热管理. 它提供辐射冷却和按需的太阳能或朱尔加热,提高了材料的适应性和应用潜力.
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:
- 当前的热管理材料往往是单功能和机械脆弱的.
- 这限制了它们的应用范围和寿命.
- 需要适应性强,耐用性强的材料来全年进行热控制.
研究的目的:
- 开发一种机械坚固的双面织复合材料,用于集成的辐射冷却和按需加热.
- 为了在各种环境条件下实现全年热管理.
- 克服当前单功能和脆弱的热材料的局限性.
主要方法:
- 使用有孔的TPU/SiO2和TPU/CNT两步涂层工艺制造织复合材料.
- 复合材料的辐射特性 (反射率,发射率,吸收率) 的表征.
- 评估太阳能加热和电气焦耳加热性能.
- 评估机械性能,包括拉伸强度和耐久性.
主要成果:
- 由于高反射率 (92%) 和发射率 (95%),TPU/SiO2侧实现了显著的辐射冷却 (白天8.1°C,夜晚9°C).
- 在TPU/CNTs方面提供太阳能加热 (12.5°C增加) 和焦尔加热 (14°C增加),具有高太阳吸收率 (96%) 和电导率 (65 S/cm).
- 复合材料显示出出色的机械强度和耐用性.
结论:
- 开发的织复合材料通过联合辐射冷却和双重功能加热提供灵活的全年热管理.
- 它的机械强度支持长期的户外应用.
- 这种材料比传统的单一功能热管理解决方案具有显著的进步.
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