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.
ACS Appl Mater Interfaces. 2021 Jan 13;13(1):2081-2090. doi: 10.1021/acsami.0c20172. Epub 2020 Dec 22.
Waterproof and breathable membranes (WBMs) are highly demanded worldwide due to their promising applications in outdoor protective clothing, medical hygiene, and electronic devices. However, the design of such materials integrated with environmental friendliness and high functionality has been considered a long-standing challenge. Herein, we report the green-solvent-processed polyamide fibrous membranes with amphiphobicity and bonding structure via ethanol-based electrospinning and water-based impregnating techniques, endowing the fibrous membranes with outstanding water/oil/dust-resistant and good breathable properties. The developed green smart fibrous membranes exhibit integrated properties with robust water and oil intrusion pressures of 101.2 and 32.4 kPa, respectively, excellent dust removal efficiency of above 99.9%, good water vapor transmission rate of 11.2 kg m d, air permeability of 2.6 mm s, tensile strength of 15.6 MPa, and strong toughness of 22.8 MJ m, enabling the membranes to protect human beings and electronic devices effectively. This work may shed light on designing the next generation green smart fibrous WBMs for protective textiles.
由于其在户外防护服装、医疗卫生和电子设备方面的应用前景广阔，防水透气膜（WBM）在全球范围内需求量很大。然而，设计具有环保和高功能的此类材料一直被认为是一个长期存在的挑战。在此，我们通过基于乙醇的静电纺丝和基于水的浸渍技术报告了具有疏水性和键合结构的绿色溶剂处理的聚酰胺纤维膜，赋予纤维膜出色的防水/油/尘性能和良好的透气性。开发的绿色智能纤维膜具有集成性能，其耐水和耐油侵入压力分别高达 101.2 和 32.4 kPa，出色的除尘效率超过 99.9%，良好的水蒸气透过率为 11.2 kg m d，透气性为 2.6 mm s，拉伸强度为 15.6 MPa，韧性强，为 22.8 MJ m，可有效保护人体和电子设备。这项工作可能为防护纺织品的下一代绿色智能纤维 WBM 设计提供了启示。
