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Updated: Jan 10, 2026

Fabrication and Design of Wood-Based High-Performance Composites
Published on: November 9, 2019
基于纤维素的结构层次结构彩色木材复合材料用于白天辐射冷却
Biyao Sun1, Shaoyi Cao2, Shuliang Dou3
1State Key Laboratory of Woody Oil Resources Utilization, Northeast Forestry University, Harbin, 150040, China.
研究人员开发了一种新的多彩的木质材料,用于白天的辐射冷却 (DRC). 这种可持续技术提供了高效的冷却,并减少了能源消耗,以实现更绿色的未来.
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:
- 白天辐射冷却 (DRC) 为能源密集型冷却方法提供了一个可持续的替代方案,有助于碳中和.
- 目前的DRC材料通常由于它们的白色或类似镜子的外观而具有有限的美学应用.
研究的目的:
- 开发一种新的,在美学上多功能的光子辐射冷却材料,使用脱木材.
- 探索纤维素纳米晶 (CNC) 和西兰自组装的潜力,在木质基板上创建可调节的结构色彩.
主要方法:
- 使用脱木材作为辐射冷却材料的纤维素基.
- 采用CNC和西兰的自组自下而上,以创建具有可调可见光谱外观的结构性彩色光子层.
- 结合PDMS来提高疏水性,而不会影响冷却性能.
主要成果:
- 开发的材料具有高太阳反射率 (95.0%) 和高大气窗口发射率 (93.0%),导致高效的辐射冷却.
- 结构彩色CNC薄膜和木材材料实现了室外冷却效果分别为2.1°C和4.3°C.
- 木材上的有图案的CNC涂层证明了其作为装饰和冷却材料的双重功能.
结论:
- 层次结构,可调色的木制材料为白天有效的辐射冷却提供了有前途的解决方案.
- 这些材料为节能,装饰性建筑材料提供了可行的选择,为可持续建筑做出了贡献.
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