3D printing and post-curing optimization of photopolymerized structures: Basic concepts and effective tools for improved thermomechanical properties

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dc.contributor.authorŠtaffová, Martinacs
dc.contributor.authorOndreáš, Františekcs
dc.contributor.authorSvatík, Jurajcs
dc.contributor.authorJančář, Josefcs
dc.contributor.authorLepcio, Petrcs
dc.coverage.issue1cs
dc.coverage.volume108cs
dc.date.accessioned2022-06-21T22:54:27Z
dc.date.available2022-06-21T22:54:27Z
dc.date.issued2022-02-04cs
dc.description.abstractThe final thermo-mechanical properties of structural parts fabricated by masked stereolithography (MSLA) are highly determined not only by the processing parameters, but also by the post-processing methods. Improper implementation of post-treatment often leads to underperforming printouts. A novel tool for complex characterization of 3D printed bodies was developed and systematically demonstrated on a commercial free-radical photopolymerization (FRP) resin. The method relies on superimposed static and oscillatory mechanical test combining the heat deflection temperature (HDT) measurement together with the dynamic mechanical analysis (DMA) in a single test for fast and reliable characterization of parameters determining the curing behaviour of the photopolymer. The influence of post-curing time was addressed with a special focus on network density. Furthermore, the print orientation, having a high impact on mechanical properties, is discussed with a particular regard on the residual stress mitigation in future applications, such as 3D-printed cellular bodies.en
dc.formattextcs
dc.format.extent1-11cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPOLYMER TESTING. 2022, vol. 108, issue 1, p. 1-11.en
dc.identifier.doi10.1016/j.polymertesting.2022.107499cs
dc.identifier.issn0142-9418cs
dc.identifier.other176673cs
dc.identifier.urihttp://hdl.handle.net/11012/203965
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofPOLYMER TESTINGcs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0142941822000277cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0142-9418/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subject3D printingen
dc.subjectMasked stereolithographyen
dc.subjectPost processingen
dc.subjectDMAen
dc.subjectPrint orientationen
dc.subjectNetwork densityen
dc.title3D printing and post-curing optimization of photopolymerized structures: Basic concepts and effective tools for improved thermomechanical propertiesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-176673en
sync.item.dbtypeVAVen
sync.item.insts2022.06.22 00:54:26en
sync.item.modts2022.06.22 00:14:26en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé polymerní materiály a kompozitcs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Sdílená laboratoř RP1cs
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
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Ústav chemie materiálů
Pokročilé polymerní materiály a kompozit
Sdílená laboratoř RP1