ArticleSmall (Weinheim an der Bergstrasse, Germany)2026
Low-Density and Flexible Silicone with Tunable Transparency for Thermal Insulation and Passive Cooling.
Article in Small (Weinheim an der Bergstrasse, Germany), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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10 authors.
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Abstract
Optimizing the performance of windows is central to reducing energy consumption. However, existing passive radiative cooling technologies primarily focus on reflecting solar radiation, often at the expense of visible light transmittance, which hinders their practical application. Herein, we report a low-density, flexible silicone with tunable transparency fabricated through a facile sol-gel transition and atmospheric pressure drying process. Utilizing polyethylene glycol-isocyanatopropyltriethoxysilane as a functional crosslinker, methyltrimethoxysilane and dimethyldimethoxysilane as copolymerized monomers, we achieved precise control over the material's microstructure and optical properties by tuning its content. The resulting transparent silicone samples exhibit outstanding overall performance: an average visible light transmittance as high as 92.97%, surpassing that of commercial ultra-clear glass, and an infrared emissivity of 94.33% within the atmospheric window. Additionally, the silicone demonstrates a low density (0.343-0.857 g/cm
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