Results 151 to 160 of about 1,407 (188)

Coupling between thermal ageing/degradation and creep behavior of PEKK and C/PEKK composites above the glass transition temperature [PDF]

open access: yesComposites Part A: Applied Science and Manufacturing, 2022
Abstract The present work aims at investigating the coupling between thermal ageing/degradation and creep behavior of PEKK and C/PEKK composites at 200 °C, above the glass transition temperature (which is close to 160 °C). Ageing tests were carried out at 200 °C, under 5 bar of oxygen conditioned atmosphere. DSC scans and DMA tests were carried out.
Giuseppe Pedoto   +2 more
exaly   +5 more sources

Raman spectroscopy investigation on amorphous polyetherketoneketone (PEKK) [PDF]

open access: yesVibrational Spectroscopy, 2023
International audienceWe used Raman spectroscopy to analyze amorphous polyetherketoneketone (PEKK) and identified the conditions to obtain this material’s exploitable Raman spectrum.
Karl Delbé, France Chabert
exaly   +3 more sources

Microstructure and Phase Separation of Pekk, Pekk and their Blends [PDF]

open access: yesMRS Proceedings, 1996
ABSTRACTMicrostructures of PEEK|PEKK blends at both structural and lamellar levels were studied using simultaneously time-resolved small-angle and wide-angle x-ray scattering (SAXS and WAXS) with synchrotron radiations. Lamellar dimensions and unit cell parameters were determined, and phase separation within the blends were observed.
Wu. Wang   +2 more
openaire   +2 more sources

Processing and Properties of Bioactive Surface-Porous PEKK

ACS Biomaterials Science and Engineering, 2016
Bioactive surface-porous polyetherketoneketone materials (PEKK-BSP) were prepared by first leaching hydroxyapatite (HA) microsphere templates from compression molded PEKK/HA composites (i.e., PEKK-P) followed by sulfonation with 80% sulfuric acid for 3 h (i.e., PEKK-SP) and then soaking in a simulated body fluid (SBF) for 5 days.
Bo Yuan, Hai Lin, Yueming Song
exaly   +3 more sources

Full Characterization of Water Transport Properties in Polyetherketoneketone (PEKK) [PDF]

open access: yesACS Applied Polymer Materials, 2023
International audiencePolyetherketoneketone (PEKK) is of increasing interest for the manufacture of composites in the aeronautical field. It is essential to evaluate PEKK absorption of fluids, especially water, with which it may come into contact during ...
Ilias Iliopoulos   +2 more
exaly   +2 more sources

Accuracy of patient-specific temporal implants using PEKK

Journal of Cranio-Maxillofacial Surgery, 2021
The main aim of this study was to evaluate the accuracy of immediate CAD/CAM reconstruction of the temporal hollowing following temporalis muscle surgery, using a patient-specific implant (PSI) PEKK model. This case series included ten patients who underwent maxillofacial reconstruction using temporalis muscle flap (TMF).
Mohammed M, Khashaba   +3 more
openaire   +2 more sources

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