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Advanced 3D printing of polyetherketoneketone hydroxyapatite composites via fused filament fabrication with increased interlayer connection
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SYSNO ASEP 0588303 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Advanced 3D printing of polyetherketoneketone hydroxyapatite composites via fused filament fabrication with increased interlayer connection Author(s) Rodzeń, K. (GB)
O´Donnell, E. (GB)
Hasson, F. (GB)
McIlhagger, A. (GB)
Meenan, B. J. (GB)
Ullah, J. (GB)
Strachota, Beata (UMCH-V) RID
Strachota, Adam (UMCH-V) RID, ORCID
Duffy, S. (GB)
Boyd, A. (GB)Article number 3161 Source Title Materials. - : MDPI - ISSN 1996-1944
Roč. 17, č. 13 (2024)Number of pages 14 s. Language eng - English Country CH - Switzerland Keywords additive manufacturing ; crystallization kinetics ; advanced semicrystalline polymers Subject RIV CD - Macromolecular Chemistry OECD category Polymer science Method of publishing Open access Institutional support UMCH-V - RVO:61389013 UT WOS 001269225800001 EID SCOPUS 85198376927 DOI https://doi.org/10.3390/ma17133161 Annotation Additively manufactured implants, surgical guides, and medical devices that would have direct contact with the human body require predictable behaviour when stress is applied during their standard operation. Products built with Fused Filament Fabrication (FFF) possess orthotropic characteristics, thus, it is necessary to determine the properties that can be achieved in the XY- and Z-directions of printing. A concentration of 10 wt% of hydroxyapatite (HA) in polyetherketoneketone (PEKK) matrix was selected as the most promising biomaterial supporting cell attachment for medical applications and was characterized with an Ultimate Tensile Strength (UTS) of 78.3 MPa and 43.9 MPa in the XY- and Z-directions of 3D printing, respectively. The effect of the filler on the crystallization kinetics, which is a key parameter for the selection of semicrystalline materials suitable for 3D printing, was explained. This work clearly shows that only in situ crystallization provides the ability to build parts with a more thermodynamically stable primary form of crystallites. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2025 Electronic address https://www.mdpi.com/1996-1944/17/13/3161
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