Effect of Solvent Type on PAN–Based Nonwoven Nanofibers Membranes Characterizations

Electrospun nanofiber membranes are employed in a variety of applications due to its unique features. the nanofibers' characterizations effected by polymer solution. The used solvent for dissolving powder is critical preparing precursor In this paper, Polyacrylonitrile (PAN)-based nanofibers were prepared concentration 10 wt.% using various solvents (NMP, DMF, and DMSO). surface morphology, porosity, mechanical strength three PAN-based (PAN/NMP, PAN/DMF, PAN/DMSO) characterized Scanning Electron Microscopy (SEM), Dry-wet Weights method, Dynamic Mechanical Analyzer (DMA). Using DMF as resulted long, beaded, homogeneous, smooth fibrous structure with an average diameter 260 nm, which was best among tested study terms porosity strength.