High Production Rate of High Purity, High Fidelity Nafion Nanofibers via Needleless Electrospinning AITranslate

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DOI：https://doi.org/10.1021/acsapm.9b00681

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This study demonstrates the needleless electrospinning of Nafion nanofibers via foam electrospinning. Compared to needle electrospinning, a 2 orders of magnitude higher production rate (9729 vs 14 mg h–1 m–2) was obtained at similar fidelity (233 ± 62 vs 216 ± 69 nm fiber diameters). Additionally, needleless electrospinning produced defect-free high purity Nafion nanofibers (98 wt % Nafion) compared to no fibers (beads) using needle electrospinning at a similar polymer solution concentration. Furthermore, the Young’s modulus and proton conductivity of the fiber mats produced by needleless electrospinning (42.6 MPa and 43.8 mS cm–1, respectively) were higher than those produced by needle electrospinning (20.9 MPa and 18.0 mS cm–1, respectively). Therefore, high fidelity, high purity Nafion nanofibers at higher production rates with improved mechanical properties and proton conductivity were produced with this needleless electrospinning technique.