PEEK materials have different grade with different MFI (e.g.MFi-3.4 – 4.5), I am sure you have considered these for the polymer selection
2. As you know with increasing the percentage of carbon fibers in PEEK the elastic modulus and the tensile strength increases, on the other hand, the tensile elongation reduces and the material become less elastic.
For glass reinforced peek please see
Glass peek composite promotes proliferation and osteocalcin production of human osteoblastic cells by Lin et al
For CF reinforced peek please see
Biological response to chopped-carbon-fiber-reinforced peek by Jockisch et al
Thanks Amin! I was thinking about higher MFR grades PEEK for better processing (~4) Please feel free to share if you see literature around other high temp polymer (say PEI..) extrusion. All the best,,