Thermal management of textiles requires local microclimate control over heat and wet dissipation to create a comfortable thermal-wet environment at the interface of the human body and clothing. Herein, we design a fabric capable of both sweat- and cooling-management using a knitted fabric featuring a bilayer structure consisting of hydrophobic polyethylene terephthalate and hydrophilic cellulose fibers to simultaneously achieve high infrared (IR) transmittance and good thermal-wet comfort. The IR transmission of this cooling textile increased by ~ twofold in the dry state and ~ eightfold in the wet state compared to conventional cotton fabric. When the porosity changes from 10 to 47% with the comparison of conventional cotton fabric and our cooling textile, the heat flux is increased from 74.4 to 152.3 W/cm². The cooling effect of the cooling fabric is 105% greater than that of commercial cotton fabric, which displays a better thermal management capacity for personal cooling. This bilayer design controls fast moisture transfer from inside out and provides thermal management, demonstrating high impact not only for garments, but also for other systems requiring heat regulation, such as buildings, which could mitigate energy demand and ultimately contribute to the relief of global energy and climate issues.

Graphic Abstract

中文翻译：

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设计用于高能效人体出汗和降温管理的纺织体系结构

纺织品的热管理要求对热量和湿气的散布进行局部微气候控制，以在人体和衣服的界面处创造舒适的热湿环境。本文中，我们设计了一种织物，该织物使用具有疏水性聚对苯二甲酸乙二酯和亲水性纤维素纤维的双层结构的针织物，既可以实现汗水管理又可以进行冷却管理，从而同时实现高红外（IR）透射率和良好的热湿舒适性。与常规棉织物相比，该冷却纺织品的红外透射率在干燥状态下增加了约两倍，在湿润状态下增加了约八倍。与常规棉织物和我们的冷却织物相比，当孔隙率从10％变为47％时，热通量从74.4升高至152.3 W / cm ²。冷却织物的冷却效果比商业棉织物的冷却效果大105％，这显示出更好的个人冷却热管理能力。这种双层设计可控制水分从内到外的快速传递，并提供热量管理功能，不仅对服装，而且对需要调节热量的其他系统（如建筑物）也产生了很大的影响，例如建筑物，这可以减轻能源需求并最终有助于缓解全球能源需求和气候问题。

图形摘要