Study of the Propagation Mechanism of Plasma Impingement on Multilayer Fiber Membranes

Atmospheric pressure low-temperature plasma is widely recognized as an environmentally friendly and efficient approach for the surface modification of fiber membranes. However, achieving a uniform modification effect presents a substantial challenge. Therefore, to tackle this pivotal issue, it is essential to investigate the mechanisms and patterns of plasma-fiber membrane interactions. In this paper, we delved into the interaction mechanism between the plasma jet and multilayer fiber membrane, leveraging a combination of experimental capture, simulation, and theoretical modeling. Our findings reveal that an increase in the number of fiber membrane layers significantly enhances the resistance to plasma axial propagation, a phenomenon also echoed in our simulation results. Moreover, we discovered that the plasma propagation mechanism operates according to an induced penetration pattern. The implications of this study provide a novel perspective on improving the uniformity of plasma surface-modified fiber membranes, which is of vital importance for advancing the development and practical application of this surface modification technology. Our findings provide both valuable theoretical insights and practical guidance for optimizing plasma-based surface modification processes, ultimately contributing to the broader field of materials science and engineering.