Effect of printing parameters on tensile, thermal and structural properties of <scp>3D</scp>‐printed poly (ether ketone ketone) <scp>PEKK</scp> material using fused deposition modeling

Magri, Anouar El; Vaudreuil, Sébastien; Ayad, Anass Ben; Hakimi, Abdelhadi El; Otmani, Rabie El; Amegouz, Driss

doi:10.1002/app.54078

Cited by 7 publications

(1 citation statement)

References 48 publications

(113 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To the best of the authors’ knowledge, there is very limited literature on the mechanical properties of PEKK due to its novelty as a polymeric material for 3D printing [ 39 , 40 , 41 ]. In addition, no previous studies have dealt with the multiscale analysis of 3D-printed PEKK; even more widely used PEEK has been seldom analyzed, following a multiscale approach on 3D-printed specimens, with an exception made for Pérez-Martín et al [ 42 ] and Lu et al [ 43 ], who have performed nanoindentation analyses to characterize new PEEK composites.…”

Section: Introductionmentioning

confidence: 99%

Multiscale Mechanical Characterization of Polyether-2-ketone (PEKK) for Biomedical Application

Serino,

Distefano,

Zanetti

et al. 2024

Bioengineering

View full text Add to dashboard Cite

Polyether-ether-2-ketone (PEKK) is a high-performance thermoplastic polymer used in various fields, from aerospace to medical applications, due to its exceptional mechanical and thermal properties. Nonetheless, the mechanical behavior of 3D-printed PEKK still deserves to be more thoroughly investigated, especially in view of its production by 3D printing, where mechanical properties measured at different scales are likely to be correlated to one another and to all play a major role in determining biomechanical properties, which include mechanical strength on one side and osteointegration ability on the other side. This work explores the mechanical behavior of 3D-printed PEKK through a multiscale approach, having performed both nanoindentation tests and standard tensile and compression tests, where a detailed view of strain distribution was achieved through Digital Image Correlation (DIC) techniques. Furthermore, for specimens tested up to failure, their fractured surfaces were analyzed through Scanning Electron Microscopy (SEM) to clearly outline fracture modes. Additionally, the internal structure of 3D-printed PEKK was explored through Computed Tomography (CT) imaging, providing a three-dimensional view of the internal structure and the presence of voids and other imperfections. Finally, surface morphology was analyzed through confocal microscopy. The multiscale approach adopted in the present work offers information about the global and local behavior of the PEKK, also assessing its material properties down to the nanoscale. Due to its novelty as a polymeric material, no previous studies have approached a multiscale analysis of 3D-printed PEKK. The findings of this study contribute to a comprehensive understanding of 3D-printed PEKK along with criteria for process optimization in order to customize its properties to meet specific application requirements. This research not only advances the knowledge of PEKK as a 3D-printing material but also provides insights into the multifaceted nature of multiscale material characterization.

show abstract