Non-linear Langevin model for the early-stage dynamics of electrospinning jets

TL;DR

This paper introduces a non-linear Langevin model to analyze the early-stage behavior of electrospinning jets, emphasizing the impact of air drag on jet elongation, which aids in optimizing electrospinning processes.

Contribution

The study develops a novel non-linear Langevin model specifically for early-stage electrospinning jet dynamics, highlighting air drag effects not previously modeled in detail.

Findings

Air drag significantly influences jet elongation near the nozzle

The model provides insights for optimizing electrospinning experiments

Numerical simulations match experimental observations

Abstract

We present a non-linear Langevin model to investigate the early-stage dynamics of electrified polymer jets in electrospinning experiments. In particular, we study the effects of air drag force on the uniaxial elongation of the charged jet, right after ejection from the nozzle. Numerical simulations show that the elongation of the jet filament close to the injection point is significantly affected by the non-linear drag exerted by the surrounding air. These result provide useful insights for the optimal design of current and future electrospinning experiments.