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<p>Super-hydrophobic fibrous materials are highly sought after for improving protective performance and wearer comfort. However, developing durable superhydrophobic fabrics with exceptional moisture permeability and strong resistance to water penetration remains a considerable challenge. To address this, we propose a simple, yet efficient method for producing PVDF/FPU superhydrophobic nanofibers via direct coaxial electrospinning. The nanofibers exhibit stable hierarchical micro–nano-roughness, featuring numerous integrated nano-protrusions derived from the shell solution. Further modification with low-surface-energy FPU enhances the super-hydrophobicity. Additionally, the PVDF/FPU nanofibrous membranes possess a finely structured hydrophobic porous network, characterized by small pore size and high porosity, which ensures outstanding water penetration resistance while Maintaining high moisture permeability. As a consequence, the resultant membranes display remarkable comprehensive waterproof and breathable properties with high water vapor transmission rate of 9.3&#xa0;kg&#xa0;m<sup>−2</sup> d<sup>−1</sup>, excellent hydrostatic pressure of 94&#xa0;kPa, as well as good superhydrophobic property with water contact angle of 153°, suggesting great promise as exceptional candidates for personal protection and comfort management.</p> Graphical Abstract <p></p>

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Coaxial Electrospun Polyvinylidene Fluoride/Fluorinated Polyurethane Nanofibrous Membranes with Superhydrophobicity for Waterproof and Breathable Application

  • 期刊论文

  • 发表日期：

    2025年9月12日

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  • Wener Huang,
  • Chuyun Ling,
  • Qiang Zhou,
  • Qiulei Fan,
  • Peimin Shen,
  • Xi Yu,
  • Chi-wai Kan,
  • Xuexian Du,
  • Xuan Kong,
  • Lingrui Wen,
  • Lihuan Wang,
  • Yuxiao Wu,
  • Baoliu Qu

摘要

Super-hydrophobic fibrous materials are highly sought after for improving protective performance and wearer comfort. However, developing durable superhydrophobic fabrics with exceptional moisture permeability and strong resistance to water penetration remains a considerable challenge. To address this, we propose a simple, yet efficient method for producing PVDF/FPU superhydrophobic nanofibers via direct coaxial electrospinning. The nanofibers exhibit stable hierarchical micro–nano-roughness, featuring numerous integrated nano-protrusions derived from the shell solution. Further modification with low-surface-energy FPU enhances the super-hydrophobicity. Additionally, the PVDF/FPU nanofibrous membranes possess a finely structured hydrophobic porous network, characterized by small pore size and high porosity, which ensures outstanding water penetration resistance while Maintaining high moisture permeability. As a consequence, the resultant membranes display remarkable comprehensive waterproof and breathable properties with high water vapor transmission rate of 9.3 kg m−2 d−1, excellent hydrostatic pressure of 94 kPa, as well as good superhydrophobic property with water contact angle of 153°, suggesting great promise as exceptional candidates for personal protection and comfort management.

Graphical Abstract