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3D printing high interfacial bonding polyether ether ketone components via pyrolysis reactions

Li, Q.; Zhao, W.; Niu, Bingjie; Wang, Y.; Wu, X.; Ji, J.; Li, Y.; Zhao, T.; Li, H.; Wang, G.

Abstract:
Recently, 3D-printed polyether-ether-ketone (PEEK) components have been shown to offer many applications in state-of-the-art electronics, 5G wireless communications, medical implantations, and aerospace components. Nevertheless, a critical barrier that limits the application of 3D printed PEEK components is their weak interfacial bonding strength. Herein, we propose a novel method to improve this unsatisfied situation via the interface plasticizing effect of benzene derivatives obtained from the thermal pyrolysis of trisilanolphenyl polyhedral oligomeric silsequioxane (POSS). Based on this method, the bonding strength of the filaments and interlayers of 3D-printed POSS/PEEK components can reach 82.9 MPa and 59.8 MPa, respectively. Moreover, the enhancing mechanism of the pyrolysis products derived from the POSS is characterized using pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), Fourier transform infrared spectroscopy (FTIR), and X-ray computed tomography (X-CT). Our proposed strategy broadens the novel design space for developing additional 3D-printed materials with satisfactory interfacial bonding strength.

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Verlagsausgabe §
DOI: 10.5445/IR/1000128360
Veröffentlicht am 12.01.2021
Originalveröffentlichung
DOI: 10.1016/j.matdes.2020.109333
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mechanische Verfahrenstechnik und Mechanik (MVM)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 0141-5530, 0261-3069, 0264-1275, 1873-4197, 1878-2876
KITopen-ID: 1000128360
Erschienen in Materials and design
Verlag Elsevier
Band 198
Seiten Art.-Nr.: 109333
Schlagwörter 3D printing; Bonding strength; Thermal pyrolysis; POSS; PEEK; Mechanical properties
Nachgewiesen in Scopus
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