Synthesis and air permeability of electrospun PAN/PVDF nanofibrous membranes

Abstract

Electrospun nanofibers present well-design membranes for filtration applications. In this study, the synthesis of polyacrylonitrile (PAN)/polyvinylidene fluoride (PVDF) bicomponent nanofibers was reported for air filtration application. Polymer concentration effect on the morphology of PAN/PVDF nanofibers was investigated and 10, 20, 30, and 40 wt% PVDF were examined. PVDF amount influences the morphology, diameter, and thermal stability of the fibers. Morphological results revealed that beadless PAN/PVDF nanofiber was obtained and the diameter of the PAN/PVDF nanofibers decreased with the increasing amount of PVDF. However, at 30 wt% beads formation on the fibers was begun to observe. Optimum conditions to obtain uniform and beadless PAN/PVDF nanofibers were determined as 20 wt% PVDF concentration. The air permeability tests of PAN/PVDF nanofibers containing 20 wt% PVDF indicated that these nanofibrous membranes are appropriate materials for air filtration applications.

Development of Tannic Acid Coated Polyvinylidene Fluoride Membrane for Filtration of River Water Containing High Natural Organic Matter

“…Due to its durability, biocompatibility, chemical resistance, and insolubility in most organic solvents, PVDF is a well-liked polymer [4]. The concentration of PVDF used during the membrane fabrication is one of many variables that can affect its filtration performance [5,6]. PVDF can be blended with other polymers, which can be dissolved in a variety of solvents, such as N-Methyl-2 Pyrrolidone, Tetrahydrofuran, and Dimethylformamide [5].…”