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机械强度高的无机-有机混合辐射冷却涂层

Mechanically robust inorganic-organic hybrid radiative cooling coating
Ruoyang Zhang;Xianghui Zhou;Fajun Wang;Junfei Ou
作者
Ruoyang Zhang;Xianghui Zhou;Fajun Wang;Junfei Ou
期刊
Colloids and Surfaces A: Physicochemical and Engineering Aspects
年卷期页
2026,751: 141713
DOI
10.1016/j.colsurfa.2026.141713
关键词
Passive daytime radiative cooling Zn2TiO4 BaSO4 Silicone resin Building energy conservation
文献编号
RC-N-361
来源
X-MOL

中文简介

被动式日间辐射冷却涂层无需外部能源供应即可有效降低建筑表面的太阳热吸收。然而,其优异的光学性能往往难以与良好的机械耐久性、防水性能和长期环境稳定性相结合。本研究提出了一种无机/有机双层混合结构策略,实现了涂层光学性能和综合性能的协同优化。底层采用锌。2二氧化钛4(ZT)和BaSO4以有机硅(BS)作为光学功能填料,碱性二氧化硅溶胶作为无机粘合剂,形成光学反射层。表面层为透明硅树脂(SR)作为保护层,提供硬度和附着力。采用简便的两步刷涂法制备了无机/有机混合辐射冷却涂层(ZT-BS/SR)。该涂层实现了92.3%的太阳反射率和95.8%的大气窗发射率。虽然表面SR改性略微降低了基涂层(ZR-BS)的太阳反射率(从96.2%降至92.3%),但显著提高了混合涂层的硬度、附着力和耐水性。ZT-BS/SR混合涂层实现了8H铅笔硬度、1级交叉划格附着力(ISO 2409)和121°的水接触角。值得注

英文摘要(原文)

inorganic binder to form an optical reflective layer. The surface layer is a transparent silicone resin (SR) as a protective layer, providing hardness and adhesion. The inorganic/organic hybrid radiative cooling coating (ZT-BS/SR) was fabricated via a facile two-step brush-coating strategy. The coating achieves a solar reflectance of 92.3% and an atmospheric window emissivity of 95.8%. Although surface SR

题录(GB/T 7714)

Zhang R, Zhou X, Wang F, 等. Mechanically robust inorganic-organic hybrid radiative cooling coating[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2026, 751: 141713. DOI: 10.1016/j.colsurfa.2026.141713.
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