Reversible Water Transportation Diode: Temperature‐Adaptive Smart Janus Textile for Moisture/Thermal Management,Advanced Functional Materials

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Reversible Water Transportation Diode: Temperature‐Adaptive Smart Janus Textile for Moisture/Thermal Management
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2019-12-05 , DOI: 10.1002/adfm.201907851
Yuanfeng Wang ₁ , Xin Liang ₁ , He Zhu ₁ , John H. Xin ₂ , Qi Zhang ₁ , Shiping Zhu ₁

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“Air‐conditioning” textiles with thermal‐ or moisture‐managing functions are of high interest for not only improving human comfort but also reducing energy consumption. However, making the textile sensitive to the surrounding environment and exhibit adaptive thermal/moisture management still remains a great challenge. Herein, a double‐sided synergetic Janus textile is developed, featuring reversible diode‐like water transportation and adjustable thermal convection upon temperature change. The incorporated responsive polymer networks with inverse transitions on the opposite sides provide synergistic surface energy gradients and capillary gradients that generate drying and cooling effects (with 50% faster water evaporation and 1.2–2.3 °C cooler than with cotton fabric) in hot weather while offering thermal preservation (120 s longer needed to be cooled down and maximumly 3.3 °C warmer than with cotton fabric) in a cold environment. This method could provide ideas for the development of more adaptive textiles and clothing to address maximum personal comfort in demanding situations.

中文翻译：

可逆水输送二极管：用于水分/热量管理的温度自适应智能Janus纺织品

具有热或湿气管理功能的“空调”纺织品不仅可以改善人体舒适度，而且可以降低能耗，因此备受关注。然而，使纺织品对周围环境敏感并表现出自适应的热/水分管理仍然是一个巨大的挑战。在此，我们开发了一种双面协同的Janus纺织品，该纺织品具有可逆的二极管状水传输功能，并且在温度变化时可调节热对流。并入的具有响应性的聚合物网络在相反的两面具有相反的跃迁，从而提供了协同的表面能梯度和毛细管梯度，从而产生了干燥和冷却效果（水蒸发速度提高了50％，速度为1.2–2。在炎热的天气中，温度比棉织物要低3°C，同时提供保温功能（冷却时间比棉织物要长120 s，最大温度比棉织物要高3.3°C）。这种方法可以为开发更具适应性的纺织品和服装提供解决方案，以解决苛刻情况下的最大个人舒适度。

更新日期：2020-02-06

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