Human Skin-Like, Robust Waterproof, and Highly Breathable Fibrous Membranes with Short Perfluorobutyl Chains for Eco-Friendly Protective Textiles.
Human Skin-Like, Robust Waterproof, and Highly Breathable Fibrous Membranes with Short Perfluorobutyl Chains for Eco-Friendly Protective Textiles.
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DOI：
10.1021/acsami.8b10408
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发表时间：
2018-08
影响因子：
9.5
通讯作者：
Jing Zhao;Xianfeng Wang;Lifang Liu;Jianyong Yu;B. Ding
中科院分区：
文献类型：
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作者：
Jing Zhao;Xianfeng Wang;Lifang Liu;Jianyong Yu;B. Ding
具有上级防水性和极端透气性的柔性智能膜对于可穿戴用途是非常期望的。然而，目前的防水和透气材料具有有限的性能效率、令人担忧的环境风险和复杂的制造过程。我们报道了具有人类皮肤样、坚固防水和高度透气能力的生态友好型纤维膜，这些纤维膜可以通过简单的静电纺丝策略制备。首次合成了一种具有双端全氟丁基（-C4 F9）短链的新型聚氨酯弹性体（C4 FPU），并将其引入到聚氨酯（PU）纤维基体中，赋予膜强大而持久的疏水性。此外，硝酸银的就业大大降低了最大孔径（dmax），有助于显着提高防水性。所得PU/C4 FPU/AgNO 3纤维膜具有优异的静水压（102.8 kPa）、优异的水蒸气透过率（12.9 kg m-2 d-1）、高的机械性能（9.8 MPa）以及对大肠杆菌和金黄色葡萄球菌的显著抗菌效果等综合性能。这些有趣的膜的成功合成可能为高档防护服的新一代关键构件提供有希望的候选者。
Flexible smart membranes with superior waterproofness and extreme breathability are highly desirable for wearable uses. However, present waterproof and breathable materials suffer from limited performance efficiency, alarming environmental risks, and complicated fabrication procedures. We report on eco-friendly fibrous membranes with human skin-like, robust waterproof, and highly breathable capabilities that can be prepared via a facile electrospinning strategy. A novel polyurethane elastomer (C4FPU) possessing double-terminal short perfluorobutyl (-C4F9) chain is synthesized for the first time and incorporated into the polyurethane (PU) fiber matrix, endowing the membrane with mighty and durable hydrophobicity. Additionally, the employment of AgNO3 greatly decreased the maximum pore size ( dmax), contributing to the dramatically enhanced waterproofness. The resulting PU/C4FPU/AgNO3 fibrous membranes exhibit comprehensive properties of exceptional hydrostatic pressure (102.8 kPa), excellent water vapor transmission rate (12.9 kg m-2 d-1), high mechanical property (9.8 MPa), and significant antibacterial efficacy against Escherichia coli and Staphylococcus aureus. The successful synthesis of these intriguing membranes may provide a promising candidate for the new generation of key building blocks of the upscale protective garments.