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Preparation and characterization of PFSA-PVDF blend nanofiber membrane and its preliminary application investigation

Abstract

Electrospinnability of perfluorosulfonic acid (PFSA)-Polyvinylidene fluoride (PVDF) blends with different ratios were investigated in detail. A well formed nanofiber structure can be obtained only when the minimum ratio of PVDF in the blend reaches 9%. The reason was explained by the property change, such as viscosity, conductivity and surface tension, and interconnected aggregates in the blend solutions as revealed by dynamic light scattering (DLS) and viscoelasticity behavior. Afterward, the property and morphology of PFSA-PVDF nanofibers were investigated. SEM images showed that the average diameter of the nanofibers ranged from 75 to 170nm. Small-angle X-ray scattering (SAXS) and DSC results data showed the microstructure of PFSA and the crystallization of PVDF in nanofiber were interfered by each other, which was contributed to the interaction between the backbone of PFSA and PVDF. CA and IEC revealed that nanofibers were high hydrophobic. Finally, PFSA-PVDF nanofiber membranes were evaluated as a catalyst in esterification reaction and as a separator in Li-ions battery, respectively. It was found that PFSA/PVDF nanofiber membrane with a high PFSA ratio showed higher capacity and more stable cycle performance after 100 cycles than PVDF nanofiber, which can be used as Li-ions battery separator.

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Publication details

The article was received on 10 May 2017, accepted on 18 Jun 2017 and first published on 19 Jun 2017


Article type: Paper
DOI: 10.1039/C7NJ01555K
Citation: New J. Chem., 2017, Accepted Manuscript
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    Preparation and characterization of PFSA-PVDF blend nanofiber membrane and its preliminary application investigation

    M. Huang, Z. Jiang, F. Li, H. yang and Z. Xu, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ01555K

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