4.7 Article

Novel passive cooling composite textile for both outdoor and indoor personal thermal management

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2019.105738

关键词

Layered structures; Textiles; Nanocomposites; Optical properties

资金

  1. National Natural Science Foundation of China [51573119, 51773135, 51533004, 51803138]
  2. Program of Introducing Talents of Discipline to Universities [B13040]

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Personal cooling generally controls the temperature of an individual instead of a large space and therefore needs less energy. In this study, a novel design of a personal cooling textile utilizing thermal radiation to dissipate excessive heat on hot days was proposed for the first time, which was a tri-layered structure of nylon (PA), polyvinylidene fluoride (PVDF) and polyethylene (PE). By selectively absorbing/emitting the thermal radiation eta = 3.44) and reflecting sunlight (> 90%), the composite textile decreased the temperature of the human body by 4.5-6.5 degrees C under direct sunlight, showing a high cooling capability, ca. 2.5 times that of traditional natural textiles. The composite textile provided cooling powers of 72.78 W/m(2) indoors and 118.18 W/m(2) outdoors, much more than traditional natural textiles. This cooling textile has the potential to be widely used among ordinary persons owing to the characteristics of lightweight, high cooling capability, high wearable comfort, no need for energy input and economy.

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