保护层对建筑外反射油漆光学行为的影响
Beatrice Castellani1,2, Alessia Di Giuseppe2, Aron Pazzaglia2
1Department of Engineering, University of Perugia, Perugia, Italy.
Heliyon
|January 11, 2024
概括
反射材料可以帮助减轻城市热岛效应. 一个保护层增强了RR涂层的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续的建筑 可持续的建筑
- 光学工程是指光学工程.
背景情况:
- 建筑包裹上的反射材料 (RR) 提供了一种策略,通过反射阳光来对抗城市热岛 (UHI) 效应.
- 通过将玻璃珠沉积在扩散材料上而产生的RR涂层,随着时间的推移因老化和污染而降解.
- 没有保护的玻璃珠可以脱落,导致环境分散和材料性能降低.
研究的目的:
- 研究保护层对反射材料的光学性能和耐久性的影响.
- 评估保护层在防止玻璃珠在老化后脱离RR涂层时的有效性.
- 为了比较RR材料的性能,有和没有保护层.
主要方法:
- 使用反射漆基,RR玻璃珠和保护层制造了五个RR样本.
- 还准备了一个没有玻璃珠的比较扩散样本.
- 对所有样品进行了光谱光度和角分布分析.
主要成果:
- 与未受保护的样本相比,带有保护层的RR样本显示出更高的整体反射率.
- 对于具有保护层的RR样本,在近红外 (NIR) 区域观察到反射率的下降.
- 添加了一层保护层导致反射光的角分布不那么集中.
结论:
- 一个保护层增强了RR材料的反射率和角分布.
- 保护层减轻了玻璃珠的脱落,改善了长期性能和环境安全.
- 这些发现支持在城市环境中使用受保护的RR涂层来缓解UHI.
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