High Production Rate of High Purity, High Fidelity Nafion Nanofibers via Needleless Electrospinning
High Production Rate of High Purity, High Fidelity Nafion Nanofibers via Needleless Electrospinning
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DOI：
10.1021/acsapm.9b00681
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发表时间：
2019-10-01
影响因子：
5
通讯作者：
Elabd, Yossef A.
中科院分区：
文献类型：
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作者：
Hwang, Monica;Karenson, Muizz O.;Elabd, Yossef A.
本研究展示了通过泡沫静电纺丝的Nafion纳米纤维的无针静电纺丝。与针静电纺丝相比，在相似的保真度（233 +/- 62 vs 216 +/- 69 nm纤维直径）下获得了高2个数量级的生产速率（9729 vs 14 mg h（-1）m（-2））。此外，与在类似聚合物溶液浓度下使用针式静电纺丝无纤维（珠）相比，无针静电纺丝产生了无缺陷的高纯度Nafion纳米纤维（98wt% Nafion）。此外，由无针静电纺丝生产的纤维毡的杨氏模量和质子传导率（分别为42.6 MPa和43.8 mS cm（-1））高于由针静电纺丝生产的纤维毡（分别为20.9 MPa和18.0 mS cm（-1））。因此，高保真度，高纯度的Nafion纳米纤维在更高的生产率与改善的机械性能和质子传导性，用这种无针静电纺丝技术。
This study demonstrates the needleless electro-spinning 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.