Preparation and characterization of polyvinylidene fluoride nanofibrous membranes by forcespinning™

Document Type

Article

Publication Date

7-6-2012

Abstract

Nanofibers of polyvinylidene fluoride (PVDF) were prepared using solutions of PVDF with acetone and dimethylacetamide. The solutions were prepared at different concentrations (18, 21.5, and 25% wt) of PVDF. The nanofiber membranes were produced by using the Forcespinning™ method. Parameters such as the orifice size and spinneret angular velocity were varied. The produced membranes were characterized using scanning electron microscopy, differential scanning calorimetry, and X-ray diffraction to determine the effect of varying parameters in the Forcespinning™ process on fiber diameter, bead formation, thermal stability, polymorphism, and morphology of the fibers and overall structure of the membrane. It was observed that polymer concentration played a key role in fiber and bead formation; at higher concentrations (such as 25 wt%), the fiber diameter increased but the bead formation decreased. The prepared composite membranes have potential applications on separators for Li-ion batteries, ultra filtration membranes, and proton conductivity membranes for fuel cells applications. POLYM. ENG. SCI., 2012.

Comments

© 2012 Society of Plastics Engineers

https://onlinelibrary.wiley.com/share/IKYBF5AJPWNBRZI9FS2T?target=10.1002/pen.23169

Publication Title

Polymer Engineering & Science

DOI

10.1002/pen.23169

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