Hydroxyapatite-Resin Composites Produced by Vat Photopolymerization and Post-Processing via In Situ Hydrolysis of Alpha Tricalcium Phosphate

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dc.contributor.authorOliver Urrutia, Carolinacs
dc.contributor.authorDrotárová, Lenkacs
dc.contributor.authorGascón-Pérez, Sebastiáncs
dc.contributor.authorSlámečka, Karelcs
dc.contributor.authorRavaszová, Simonacs
dc.contributor.authorČelko, Ladislavcs
dc.contributor.authorMontufar Jimenez, Edgar Benjamincs
dc.coverage.issue4cs
dc.coverage.volume6cs
dc.date.issued2023-11-24cs
dc.description.abstractVat photopolymerization is an additive manufacturing technique that utilizes photosensitive resins to fabricate 3D polymeric objects with high precision. However, these objects often lack mechanical strength. This study investigated the strengthening of a resin based on epoxidized soybean oil acrylate, specifically designed for vat photopolymerization, by the in situ formation of hydroxyapatite nanocrystals. First, a stable alpha tricalcium phosphate (-TCP)-resin feedstock mixture was developed (~30 vol.% -TCP), which proved suitable for fabricating monoliths as well as complex triply periodic minimal surface (gyroid, diamond, and Schwarz) porous structures through vat photopolymerization. The results demonstrated that the incorporation of -TCP particles led to a significant mechanical improvement of the resin. Second, post-printing hydrothermal treatments were utilized to transform the -TCP particles into hydroxyapatite crystals within the resin. It was observed that the space between hydroxyapatite crystals within the composites was occupied by the cured resin, resulting in a more compact, stronger, and mechanically more reliable material than the porous hydroxyapatite produced by the hydrolysis of -TCP mixed with water. Moreover, water absorption during the hydrothermal treatments caused the plasticization of the cured resin. As a consequence, the hydroxyapatite-resin composites displayed slightly lower mechanical properties compared to the as-printed -TCP-resin composite.en
dc.formattextcs
dc.format.extent2282-2294cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationCeramics-Switzerland. 2023, vol. 6, issue 4, p. 2282-2294.en
dc.identifier.doi10.3390/ceramics6040139cs
dc.identifier.issn2571-6131cs
dc.identifier.orcid0009-0003-7028-5427cs
dc.identifier.orcid0000-0001-8847-075Xcs
dc.identifier.orcid0000-0002-8451-1822cs
dc.identifier.orcid0000-0003-0264-3483cs
dc.identifier.orcid0000-0002-8122-4000cs
dc.identifier.other185725cs
dc.identifier.researcheridJVM-9421-2024cs
dc.identifier.researcheridD-9475-2012cs
dc.identifier.researcheridD-6870-2012cs
dc.identifier.researcheridF-8040-2016cs
dc.identifier.scopus16242487800cs
dc.identifier.scopus57202953298cs
dc.identifier.scopus25621022900cs
dc.identifier.scopus23397943300cs
dc.identifier.urihttp://hdl.handle.net/11012/245165
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofCeramics-Switzerlandcs
dc.relation.urihttps://www.mdpi.com/2571-6131/6/4/139cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2571-6131/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectvat polymerizationen
dc.subjectalpha tricalcium phosphateen
dc.subjecthydroxyapatiteen
dc.subjectporous compositeen
dc.subjectmechanical strengthen
dc.titleHydroxyapatite-Resin Composites Produced by Vat Photopolymerization and Post-Processing via In Situ Hydrolysis of Alpha Tricalcium Phosphateen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-185725en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:46:03en
sync.item.modts2025.01.17 15:37:38en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav technologie stavebních hmot a dílcůcs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé povlakycs
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