We investigated the infrared radiation (IR) absorption coefficients of several polymer types to propose a novel approach through the development of radiative-cooling polymeric films and composites. We studied polymeric films and their infrared characterization for selective IR radiation absorption. Specifically, we prepared and analyzed films of Styrene-Isoprene-Styrene (SIS), Styrene-Butadiene-Styrene (SBS), and Styrene-Ethylene-Butadiene-Styrene (SEBS) copolymers for radiative cooling applications. The linear optical properties of the films in the mid-infrared range were characterized using Fourier-transform infrared (FT-IR) spectrophotometry. To evaluate the cooling performance, we introduced a quality factor that accounts for emissivity within the two key infrared transmission windows of Earth's at mosphere. Based on the experimental results, we calculated the quality factor to compare the radiative cooling efficiency of the different investigated polymers.
Assessing radiative cooling potential of polymeric films: a quality factor for energy-efficient materials / Ireddy, Vijayasimha Reddy; Chiarotto, Isabella; Ceneda, Daniele; Bile, Alessandro; Centini, Marco; Larciprete, Maria Cristina. - In: OPTICAL MATERIALS. - ISSN 0925-3467. - 159:(2024), pp. 1-5. [10.1016/j.optmat.2024.116615]
Assessing radiative cooling potential of polymeric films: a quality factor for energy-efficient materials
Ireddy, Vijayasimha Reddy;Chiarotto, Isabella;Ceneda, Daniele;Bile, Alessandro;Centini, Marco;Larciprete, Maria Cristina
2024
Abstract
We investigated the infrared radiation (IR) absorption coefficients of several polymer types to propose a novel approach through the development of radiative-cooling polymeric films and composites. We studied polymeric films and their infrared characterization for selective IR radiation absorption. Specifically, we prepared and analyzed films of Styrene-Isoprene-Styrene (SIS), Styrene-Butadiene-Styrene (SBS), and Styrene-Ethylene-Butadiene-Styrene (SEBS) copolymers for radiative cooling applications. The linear optical properties of the films in the mid-infrared range were characterized using Fourier-transform infrared (FT-IR) spectrophotometry. To evaluate the cooling performance, we introduced a quality factor that accounts for emissivity within the two key infrared transmission windows of Earth's at mosphere. Based on the experimental results, we calculated the quality factor to compare the radiative cooling efficiency of the different investigated polymers.File | Dimensione | Formato | |
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