持久的自清洁辐射冷却涂层用于建筑节能效率
Huiquan Ju1, Haibin Long1, Shasha Yang1
1School of Materials Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China.
ACS applied materials & interfaces
|June 13, 2024
概括
这项研究开发了一种实际的被动白天辐射冷却 (PDRC) 涂层,使用改性化高. 耐用,超疏水涂层提供显著的冷却效果和节能,证明了建筑应用的卓越可扩展性.
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:
- 无源日间辐射冷却 (PDRC) 是一个有前途的节能技术.
- 现有的PDRC涂层往往缺乏耐用性和可扩展性等实用特性.
- 需要PDRC材料,以平衡高性能与现实世界的适用性.
研究的目的:
- 开发一种高度实用的PDRC涂层,增强耐用性和可扩展性.
- 为了研究用于PDRC应用的改性化高基涂层的性能.
- 评估开发的涂层的冷却性能,耐用性和节能潜力.
主要方法:
- 制备一种经过修改的化考林/乙烯三化乙烯共聚物-聚二甲基) (MK/FEVE-PDMS) 涂层.
- 光学特性 (太阳反射率,红外发射率),超水性 (接触角度) 和粘合强度的表征.
- 在太阳辐射下对冷却性能的评估以及对抗紫外线老化和机械损坏的耐用性的评估.
主要成果:
- 该MK/(FEVE-PDMS) 涂层实现了高太阳反射率 (92.5%) 和中红外辐射率 (94.6%).
- 该涂层表现出超性 (ACA: 160.2°),并实现温度下降高达 13.12 °C.
- 证明了出色的附着性 (二级),耐用性,自清洁性能和可扩展性,具有超过10%的潜在能源节约.
结论:
- 开发的MK/{FEVE-PDMS) 涂层为被动白天辐射冷却提供了一种实用且持久的解决方案.
- 它的高性能,超疏水性和可扩展性的结合使其适用于广泛的建筑应用.
- 该涂层显示出在炎热的气候下降降低冷却能耗的巨大潜力.
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