State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, Shanghai, 201620, China.
Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 200051, China.
Small. 2018 Aug;14(32):e1801527. doi: 10.1002/smll.201801527. Epub 2018 Jul 13.
Directional water transport is a predominant part of functional textiles used for continuous sweat release in daily life. However, it has remained a great challenge to design such textiles which ensure continuous directional water transport and superior prevention of water penetration in the reverse direction. Here, a scalable strategy is reported to create trilayered fibrous membranes with progressive wettability by introducing a transfer layer, which can guide the directional water transport continuously and spontaneously, thus preventing the skin from being rewetted. The resulting trilayered fibrous membranes exhibit a high one-way transport index R (1021%) and a desired breakthrough pressure (16.1 cm H O) in the reverse direction, indicating an ultrahigh directional water transport capacity. Moreover, on the basis of water transport behavior, a plausible mechanism is proposed to provide insight into the integrative and cooperative driving forces at the interfaces of trilayered hydrophobic/transfer/superhydrophilic fibrous membranes. The successful synthesis of such fascinating materials would be valuable for the design of functional textiles with directional water transport properties for personal drying applications.
定向输水是日常生活中用于持续排汗的功能性纺织品的主要组成部分。然而，设计出能够确保连续定向输水和优异的反向防水渗透的纺织品仍然是一个巨大的挑战。在这里，报道了一种通过引入转移层来制造具有渐进润湿性的三层纤维膜的可扩展策略，该转移层可以持续和自发地引导定向输水，从而防止皮肤重新润湿。所得到的三层纤维膜在反向具有高单向传输指数 R（1021%）和所需的突破压力（16.1 cm H2O），表明具有超高的定向输水能力。此外，基于输水行为，提出了一种合理的机制，以深入了解三层疏/转移/超亲水纤维膜界面的综合和协同驱动力。这种引人入胜的材料的成功合成对于设计具有定向输水性能的功能性纺织品用于个人干燥应用将具有重要价值。
