Characterization of composites of recycled polyether ether ketone with reclaimed carbon fibers
Lade...
Autor:in (Körperschaft)
Publikationsdatum
2026
Typ der Arbeit
Studiengang
Sammlung
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Journal of Reinforced Plastics & Composites
Themenheft
DOI der Originalpublikation
Link
Zugehörige Forschungsdaten
Reihe / Serie
Reihennummer
Jahrgang / Band
Ausgabe / Nummer
Seiten / Dauer
Patentnummer
Verlag / Herausgebende Institution
SAGE
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
This study investigates the fabrication and characterization of recycled polyether ether ketone (rPEEK) composites reinforced with 5–25 wt% reclaimed carbon fibers (rCF), produced by twin-screw extrusion and injection molding. SEM and X-ray micro-computed tomography revealed homogeneous fibers dispersion within the rPEEK matrix. Porosity remained between 4.0% and 7.4% up to 20 wt% rCF but increased to 15.9% at 25 wt% rCF. Significant fiber fragmentation during processing reduced the average fiber length to approximately 50 µm, well below the estimated critical fiber length (∼292 µm), indicating subcritical reinforcement and limited stress-transfer efficiency. Despite these limitations, the addition of rCF significantly improved mechanical performance. The tensile modulus increased from 3.1 GPa for neat rPEEK to 6.2 GPa at 25 wt% rCF, while tensile strength reached 113 MPa. Conversely, strain at break and impact strength decreased from 38% to 5% and from 8.9 to 5.9 kJ/m 2 , respectively, due to stress concentrations, interfacial debonding, and fiber pull-out. DMA confirmed increased stiffness and reduced damping capacity with increasing fiber content. The composites retained excellent thermal stability, with the onset of degradation remaining near 560°C. Overall, rPEEK/rCF composites represent a sustainable route to high-performance materials with potential applications in automotive and aerospace sectors.
Schlagwörter
Fachgebiet (DDC)
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
0731-6844
1530-7964
1530-7964
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Ja
Zukunftsfelder FHNW
Publikationsstatus
Veröffentlicht
Begutachtung
peer-reviewed
Open Access-Status
Closed
Zitation
Latko-Durałek, P., Misiak, M., Bamlaku, B. T., Kołbuk, D., Szlązak, K., Wolniak, K., & Rytka, C. (2026). Characterization of composites of recycled polyether ether ketone with reclaimed carbon fibers. Journal of Reinforced Plastics & Composites. https://doi.org/10.1177/07316844261490358