Scalable Super-hydrophobic Polyurethane/Fluorinated Polyurethane/SiO2 Nanofibrous Membranes for Waterproof and Breathable Application 


Vol. 26,  No. 7, pp. 2741-2749, Jul.  2025
10.1007/s12221-025-00996-z


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  Abstract

Superhydrophobic fibrous materials are highly desirable for improving wearing comfort and protection however, constructing durable superhydrophobic fabrics with excellent moisture permeability and high resistance to water penetration remains a great challenge. Therefore, we present an efficient and facile approach to construct super-hydrophobic polyurethane/fluorinated polyurethane/SiO2 (PU/FPU/SiO2) nanofibrous membranes via the incorporation of electrospinning and hot-pressing. SiO2 nanoparticles are incorporated into the PU/FPU nanofibers, creating a multi-level micro/nano-scale roughness. Specifically, the aggregation of composite nanofibers contributes to micro-roughness, while the addition of SiO2 nanoparticles gives rise to nano-roughness. FPU has an extremely low surface energy. We intend to add FPU to boost the hydrophobicity of the membranes, so as to obtain super-hydrophobic characteristics. Moreover, we comprehensively study the effect of the SiO2 nanoparticles concentration on the hydrophobicity of nanofibrous membranes and also discover the influence of heat treatment temperature on the porous structure of nanofibrous membranes. According to our design, the final membranes are anticipated to show a combination of an outstanding super-hydrophobic surface (water contact angle of 152°), good waterproof and breathable properties (high water vapor transmission rate of 7.9 kg m-1 d-1 and excellent hydrostatic pressure of 59 kPa). This indicates that PU/FPU/SiO2 nanofibrous membranes have great potential for use in the next generation of protective fabrics.

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  Cite this article

[IEEE Style]

X. Yu, G. Xu, J. Huang, X. Zhao, J. Zhang, "Scalable Super-hydrophobic Polyurethane/Fluorinated Polyurethane/SiO2 Nanofibrous Membranes for Waterproof and Breathable Application," Fibers and Polymers, vol. 26, no. 7, pp. 2741-2749, 2025. DOI: 10.1007/s12221-025-00996-z.

[ACM Style]

Xi Yu, Guiying Xu, Jinfu Huang, Xinglei Zhao, and Jingwei Zhang. 2025. Scalable Super-hydrophobic Polyurethane/Fluorinated Polyurethane/SiO2 Nanofibrous Membranes for Waterproof and Breathable Application. Fibers and Polymers, 26, 7, (2025), 2741-2749. DOI: 10.1007/s12221-025-00996-z.

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pISSN : 1229 - 9197
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