Investigation of <scp>3D</scp> printing strategy on the mechanical performance of coextruded continuous carbon fiber reinforced <scp>PETG</scp>

Fused filament fabrication (FFF) has been used to create prototypes and functional parts for various applications using plastic filaments. It also extended the use of continuous fibers reinforcing thermoplastic polymers. This study aims optimize deposition design a coextruded carbon fiber (CCF) composite with polyethylene terephthalate glycol?modified (PETG) filament. The characterizations on raw materials revealed that matrix polymer in CCF had similar physicochemical properties as PETG, were homogeneously distributed effect raster orientation shells number mechanical non?reinforced CCF?reinforced PETG was investigated. highest obtained at 0° both reinforced materials. With increase orientation, Young's modulus ultimate tensile strength decreased. presence improved PETG. For samples printed unreinforced shells, decreased due decrease content, elongation break increased. Tomographic observations showed behavior specimens depended anisotropy porosity