Integrated cooling (i-Cool) textile of heat conduction and sweat transportation for personal perspiration management

Yucan Peng, Wei Li, Bofei Liu, Weiliang Jin, Joseph Schaadt, Jing Tang, Guangmin Zhou, Guanyang Wang, Jiawei Zhou, Chi Zhang, Yangying Zhu, Wenxiao Huang, Tong Wu, Kenneth E. Goodson, Chris Dames, Ravi Prasher, Shanhui Fan and Yi Cui ()
Additional contact information
Yucan Peng: Stanford University
Wei Li: Stanford University
Bofei Liu: Stanford University
Weiliang Jin: Stanford University
Joseph Schaadt: University of California
Jing Tang: Stanford University
Guangmin Zhou: Stanford University
Guanyang Wang: Stanford University
Jiawei Zhou: Stanford University
Chi Zhang: Stanford University
Yangying Zhu: Stanford University
Wenxiao Huang: Stanford University
Tong Wu: Stanford University
Kenneth E. Goodson: Stanford University
Chris Dames: University of California
Ravi Prasher: University of California
Shanhui Fan: Stanford University
Yi Cui: Stanford University

Nature Communications, 2021, vol. 12, issue 1, 1-12

Abstract: Abstract Perspiration evaporation plays an indispensable role in human body heat dissipation. However, conventional textiles tend to focus on sweat removal and pay little attention to the basic thermoregulation function of sweat, showing limited evaporation ability and cooling efficiency in moderate/profuse perspiration scenarios. Here, we propose an integrated cooling (i-Cool) textile with unique functional structure design for personal perspiration management. By integrating heat conductive pathways and water transport channels decently, i-Cool exhibits enhanced evaporation ability and high sweat evaporative cooling efficiency, not merely liquid sweat wicking function. In the steady-state evaporation test, compared to cotton, up to over 100% reduction in water mass gain ratio, and 3 times higher skin power density increment for every unit of sweat evaporation are demonstrated. Besides, i-Cool shows about 3 °C cooling effect with greatly reduced sweat consumption than cotton in the artificial sweating skin test. The practical application feasibility of i-Cool design principles is well validated based on commercial fabrics. Owing to its exceptional personal perspiration management performance, we expect the i-Cool concept can provide promising design guidelines for next-generation perspiration management textiles.

Date: 2021
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DOI: 10.1038/s41467-021-26384-8

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