Effect of Carbon Fiber Content in Polyethylene Terephthalate Glycol on Tribological Behavior of 3D-Printed Parts

This study explores the impact of carbon fiber reinforcement on the friction properties of PETG-based composite materials fabricated using FFF/FDM printing technology. The effect of carbon fiber content and orientation on mechanical properties are investigated, specifically focusing on tribological behavior. Results indicate a significant correlation between the content of carbon fiber and friction coefficient. Moreover, the arrangement of carbon fibers introduces anisotropic friction properties in the PETG composites. Additionally, the application of ironing treatment substantially enhances surface quality without significant alteration to internal material properties. These findings contribute to the understanding of the interplay between carbon fiber reinforcement, printing parameters, and friction characteristics, thereby facilitating the optimization of PETG-based composite materials for various applications.