Exploring the Influence of Collector Acceleration on Deposition in Melt Electrospinning Writing

Abstract

Melt electrospinning writing (MEW) technology has demonstrated its utility in additive manufacturing 3D micrometer structures, such as biodevices and flexible electronic devices. It needs to achieve high-precision and micrometer-scale deposition through the 3D jet formed by the Taylor cone. However, jet lag effects during high-speed direct printing present a significant challenge in realizing high-precision deposition, especially at 90° angles. This study first analyzes the generation of jet lag effects. Subsequently, a detection model for the jet deflection angle $\theta$ is constructed using a real-time charge coupled device camera. The exploration of collector acceleration and the jet-deposited trajectory is also described. Finally, the influence and relationship of various MEW parameters—such as nozzle height, heating temperature, and acceleration—on achieving high-precision jet deposition are examined. This study provides a new perspective and ideas for adjusting collector acceleration to enhance MEW high-precision jet deposition.