Results 161 to 170 of about 3,171 (198)

Crystallinity studies of PEKK and carbon fibre/PEKK composites: A review [PDF]

open access: yesComposites Part B: Engineering, 2021
Abstract Poly(etherketoneketone) (PEKK) is a thermoplastic, part of the poly(aryletherketone) (PAEK) family of polymers, with excellent mechanical performance and chemical resistance properties that make it an interesting candidate as a matrix for high-performance composites.
Conchúr Ó Brádaigh
exaly   +6 more sources

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

Composites 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   +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

CRYSTALLISATION STUDIES ON NEAT PEKK AND CARBON FIBRE/PEKK COMPOSITES

2023
Study of the crystallisation behaviour, morphology, kinetics and modelling of unreinforced PEKK and carbon fibre-PEKK composite.
Helena Pérez-Martín   +4 more
openaire   +1 more source

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

Microstructure and Phase Separation of Pekk, Pekk and their Blends

MRS 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   +1 more source

Thermomechanical investigations of PEKK-HAp-CS composites

Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 2019
In this experimental study, a composite of poly-ether-ketone-ketone by reinforcement of hydroxyapatite and chitosan has been prepared for possible applications as orthopaedic scaffolds. Initially, different weight percentages of hydroxyapatite and chitosan were reinforced in the poly-ether-ketone-ketone matrix and tested for melt flow index in order ...
Rupinder Singh   +5 more
openaire   +2 more sources

PEEK-PEKK en de PEAK-familie

Tandartspraktijk, 2016
Sinds 1980 wordt PEEK in de orthopedie en de traumatologie gebruikt voor onder andere kunstheupen en als transplantaat bij botdefecten. Sinds de opmars van cad/cam-toepassingen in de tandheelkunde is dit lichte maar sterke materiaal ook toepasbaar in de tandheelkunde. Op de IDS-beurs van 2014 in Keulen liet een fabrikant als Cendres+Metaux toepassingen
Frederique van der Werff, Hilko de Wolf
openaire   +1 more source

Nanotribological Properties of Poly(ether ketone ketone) (PEKK) and Sulfonated Poly(ether ketone ketone) (S-PEKK) Thin Films

High Performance Polymers, 2002
An atomic force microscope (AFM) was used to determine the nanotribological properties of poly(ether ketone ketone) (PEKK) and sulfonated poly(ether ketone ketone) (S-PEKK) thin films, by sliding the AFM tip on the polymer surfaces and stepwise increasing the loading forces on the cantilever.
Caisheng Song   +3 more
openaire   +1 more source

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