Akademik Veri Yönetim Sistemi
4. INTERNATIONAL GÖBEKLİTEPE SCIENTIFIC RESEARCH CONGRESS, Şanlıurfa, Türkiye, 7 - 08 Ekim 2022, ss.1043-1050
Continuous fiber-reinforced
thermoplastic composite (CFRTP) manufacturing with fused deposition modeling
(FDM) platform is an up-and-coming method to produce parts with high mechanical
properties. Mechanical performance of CFRTP is still limited by interlayer
bonding performance and fiber-matrix interface. In this study, CFRTP samples
were produced using carbon fiber and PEEK thermoplastic, and it was aimed to
improve the mechanical properties by developing a more suitable fiber-polymer
interface. The sizing process has been applied to the fiber in order to ensure
that the applied force is transferred to the fibers more efficiently, with the
polymer holding onto the fiber surface more firmly. In the sizing process, a
production method was applied in the form of cleaning the fiber surfaces,
activation with Meldrum acid, and completing the sizing by using PEKK powder.
CFRTP filament was produced using the fibers coated with the sizing agent in
the melt impregnation method. Three-point bending test specimens were produced
by using the obtained filaments on an FDM-based printer. When the results were
examined, it was observed that the maximum stresses obtained from the
three-point bending test were 9.72%, and the elasticity modulus improved by
56.76%. An average of 974.75 MPa flexural strength and 166.97 GPa modulus of
elasticity were obtained in sizing applied samples. The stages of the sizing
process and its effects on the fiber were examined using SEM images.