Tailoring Photonic-Engineered Textiles with Butterfly-Mimetic Tertiary Micro/Nano Architectures for Superior Passive Radiative Cooling

Hongyu Guo , Tianye Niu , Jianyong Yu , Xueli Wang , Yang Si

Engineering ›› 2023, Vol. 31 ›› Issue (12) : 120 -126.

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Engineering ›› 2023, Vol. 31 ›› Issue (12) : 120 -126. DOI: 10.1016/j.eng.2023.07.019
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Tailoring Photonic-Engineered Textiles with Butterfly-Mimetic Tertiary Micro/Nano Architectures for Superior Passive Radiative Cooling

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Abstract

People could potentially mitigate heat discomfort when outdoors by combining passive radiative cooling (PRC) strategies with personal thermal management techniques. However, most current PRC materials lack wearing comfort and durability. In this study, a microarray technique is applied to fabricate the tailoring photonic-engineered textiles with intriguing PRC capability and appealing wearability. The developed radiative cooling textiles (RCTs) demonstrate appropriate air-moisture permeability, structural stability, and extended spectroscopic response with high sunlight reflectivity (91.7%) and robust heat emissivity (95.8%) through the atmospheric transparent spectral window (ATSW). In a hot outdoor cooling test, a skin simulator covered by the RCTs displays a temperature drop of approximately 4.4 °C at noon compared with cotton textiles. The evolution of our mimetic structures may provide new insights into the generation of wearable, thermal-wet comfortable, and robust textiles for exploring PRC techniques in personal thermal management applications.

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Biomimetic materials / Personal thermal management / Textiles / Passive radiative cooling

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Hongyu Guo,Tianye Niu,Jianyong Yu,Xueli Wang,Yang Si. Tailoring Photonic-Engineered Textiles with Butterfly-Mimetic Tertiary Micro/Nano Architectures for Superior Passive Radiative Cooling. Engineering, 2023, 31(12): 120-126 DOI:10.1016/j.eng.2023.07.019

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Funding

the Ministry of Industry and Information Technology; the National Development and Reform Commission of the People’s Republic of China; the Fundamental Research Funds for the Central Universities(2232020A-06)

the Science and Technology Commission of Shanghai Municipality(20QA1400500, 21130750100, 22dz1200102)

Huo Yingdong Education Foundation(171065)

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