Solvent Effects on the Elasticity of Electrospinnable Polymer Solutions.

ABSTRACT: Ultrafine fibers manufactured through electrospinning are a frontrunner for advanced fiber applications, but transitioning from potential to commercial applications for ultrafine fibers requires a better understanding of the behavior of polymer solutions in electrospinning to enable the design of more complex spinning dopes. In complex fluids, there are viscoelastic stresses and microstructural transitions that alter free surface flows. These may not be seen in shear rheology; therefore, an in-depth analysis of the extensional rheological behavior must be performed. In this work, we use dripping-onto-substrate rheometry to characterize the extensional viscosities of electrospinning dopes from four polymer solutions commonly used in electrospinning (low- and high-molecular-weight polyvinylp

SUBMITTER: Ewaldz E 

PROVIDER: S-EPMC9954283 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature