Volume 20, Issue 43 2403751
Research Article

A High-Performance Passive Radiative Cooling Metafabric with Janus Wettability and Thermal Conduction

Peibo Du

Peibo Du

National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620 P. R. China

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Xingshun Zhao

Xingshun Zhao

National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620 P. R. China

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Xiongwei Zhan

Xiongwei Zhan

National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620 P. R. China

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Xiaoyan Li

Xiaoyan Li

National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620 P. R. China

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Keru Hou

Keru Hou

National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620 P. R. China

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Yating Ji

Yating Ji

National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620 P. R. China

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Zhuizhui Fan

Zhuizhui Fan

National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620 P. R. China

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Javed Muhammad

Javed Muhammad

State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237 P. R. China

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Fengyan Ge

Fengyan Ge

National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620 P. R. China

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Zaisheng Cai

Corresponding Author

Zaisheng Cai

National Engineering Research Center for Dyeing and Finishing of Textiles, Key Lab of Science & Technology of Eco-Textile, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620 P. R. China

E-mail: [email protected]

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First published: 28 June 2024
Citations: 22

Abstract

With the development of industry and global warming, passive radiative cooling textiles have recently drawn great interest owing to saving energy consumption and preventing heat-related illnesses. Nevertheless, existing cooling textiles often lack efficient sweat management capacity and wearable comfort under many practical conditions. Herein, a hierarchical cooling metafabric that integrates passive radiation, thermal conduction, sweat evaporation, and excellent wearable comfort is reported through an electrospinning strategy. The metafabric presents excellent solar reflectivity (99.7%, 0.3–2.5 µm) and selective infrared radiation (92.4%, 8–13 µm), given that the unique optical nature of materials and wettability gradient/micro-nano hierarchical structure design. The strong moisture-wicking effect (water vapor transmission (WVT) of 2985 g m−2 d−1 and directional water transport index (R) of 1029.8%) and high heat-conduction capacity can synergistically enhance the radiative cooling efficiency of the metafabric. The outdoor experiment reveals that the metafabric can obtain cooling temperatures of 13.8 °C and 19.3 °C in the dry and sweating state, respectively. Meanwhile, the metafabric saves ≈19.3% of annual energy consumption compared with the buildings with HAVC systems in Shanghai. The metafabric also demonstrates desirable breathability, mechanical strength, and washability. The cost-effective and high-performance metafabric may offer a novel avenue for developing next-generation personal cooling textiles.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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