The Effect of Heat Treatments Applied to Continuous Fiber Reinforced Thermoplastic Composites on Mechanical Properties

Vatandaş B. B., Gümrük R., Uşun A., Yıldız N.

Open Journal of Nano, vol.7, no.1, pp.10-17, 2022 (Peer-Reviewed Journal)

  • Publication Type: Article / Article
  • Volume: 7 Issue: 1
  • Publication Date: 2022
  • Journal Name: Open Journal of Nano
  • Page Numbers: pp.10-17
  • Karadeniz Technical University Affiliated: Yes


This study investigated the effects of different heat treatments on continuous fiber-reinforced thermoplastic (CFRTP) 's. CFRTP composite is produced using fused deposition modeling (FDM), which is one of the additive manufacturing methods. Polylactic acid (PLA) was used as a matrix, and carbon fibers (3K) were utilized as reinforcement material. First, CFRTP filament was produced on a specially designed melt impregnation line. Afterward, test samples were manufactured via a conventional 3D printer. Then, heat treatments (re-melting in salt, microwave oven, oven) were applied to the produced samples, and the effects of these processes on mechanical properties were investigated. Three-point bending tests were used to investigate the mechanical properties of the test samples. As a result of the heat treatments applied to the CFRTP specimens, flexural stresses between 200 and 220 MPa was achieved. The highest bending stress was obtained by re-melting in salt. As a result of the heat treatments, the stress values are similar, but the re-melting in salt application exhibited a more rigid behavior.