Effects of non-linear rheology on the electrospinning process: a model study

TL;DR

This paper presents an analytical model to study how non-linear rheology, especially yield stress, influences the early dynamics of electrified jets in electrospinning, with implications for optimizing experimental design.

Contribution

It introduces a novel bead-spring model that incorporates non-linear rheological effects to better understand electrospinning jet behavior.

Findings

Non-zero yield stress reduces jet elongation.

Non-linear rheology significantly affects jet dynamics.

Model suggests potential for improved electrospinning control.

Abstract

We develop an analytical bead-spring model to investigate the role of non-linear rheology on the dynamics of electrified jets in the early stage of the electrospinning process. Qualitative arguments, parameter studies as well as numerical simulations, show that the elongation of the charged jet filament is significantly reduced in the presence of a non-zero yield stress. This may have beneficial implications for the optimal design of future electrospinning experiments.