Title: A feasibility study on production and optimization of PVDF/PU polyblend nanofiber layers using expert design analysis
Journal: Iranian Polymer Journal
Author: Behrang Adeli, Ali Akbar Gharehaghaji, Ali Asghar Asgharian Jeddi
Year: 2021
Address: Department of Textile Engineering, Amirkabir University of Technology, 1591634311 Tehran, Iran
Abstract: Different polymer blends are electrospun to produce nanofibers with novel combined features. In this study, the feasibility of combining polyurethane (PU) and polyvinilidine floride (PVDF) polymer was evaluated to produce an adequate nanoscale layer. This scale would increase the β-phase in PVDF; the lowest beads in the nanolayers, to achieve a smooth layer with more uniform strength. To manufacture PVDF/PU, the PVDF was combined with PU components for elastic behavior. Eighteen experimental design points were performed using Design-Expert software, based on electrospinning variables, including solution concentration, applied voltage, and the needle to collector distance. SEM study was carried out to assess the fiber diameter and the bead numbers to characterize the surface morphology of nanofibers. Chemical reactions between the two polymer components and the fibers inner structure were investigated through FTIR and XRD. According to the experiment design, 14% (wt) solution concentration, 18 kV voltage, and 24 cm distance between the needle tip and the collector were considered as the optimum conditions during electrospinning. FTIR test revealed that there was no chemical reaction between the TPU and PVDF components. Also, several β-phases were formed during the electrostatic drafting of a polyblend solution. Moreover, the XRD results showed that the PVDF/TPU composite had low crystallinity compared to pure TPU and PVDF. Finally, it was concluded that providing uniform nanofiber mats by applying the optimum condition during electrospinning would result in PVDF/TPU polyblend higher piezoelectric features nanofibers.
Keywords: Electrospinning, PVDF, TPU polyblend nanofiber, Experiment design, Surface morphology, β-phase
Application: Optimizing Electrospinning Parameters
Product Model 1: Electrospinning Setup
Product Model 2:
URL: #https://link.springer.com/article/10.1007/s13726-021-00910-3#