Harnessing light to create functional, three-dimensional polymeric materials: multitasking initiation systems as the critical key to success

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dc.contributor.authorTomal, Wiktoriacs
dc.contributor.authorKrok, Dominikacs
dc.contributor.authorChachaj-Breskiesz, Annacs
dc.contributor.authorLepcio, Petrcs
dc.contributor.authorOrtyl, Joannacs
dc.coverage.issue1cs
dc.coverage.volume48cs
dc.date.issued2021-11-29cs
dc.description.abstractNowadays, the lack of suitable photoinitiators (PI) and photoinitiating systems (PISs) represents the utmost challenge in 3D-VAT printing. High photoinitiating efficiency is needed for example in the presence of nanofillers such as carbon nanotubes (CNTs) which absorb and scatter light. Many prominent PISs contains iodonium salt as an initiator and a second component as a photosensitizer. This study addresses the high demand for innovative PISs with improved photoinitiating efficiency by a complete cycle of research: from the synthesis of new biphenyl derivatives, through their employment as photosensitizers of iodonium salt for light-induced cationic, free-radical, and hybrid polymerization processes, to the representative application in 3D printing processes such as digital light processing (DLP) or laser printing. The ultimate performance of the newly synthetized compounds was tested by preparing 3D-printable photosensitive nanocomposite resins filled with CNTs as a nanoscale filler. Their photopolymerization kinetics as well as the effect of the CNT concentration on the crosslinking were analyzed via real-time FTIR and photo-rheology. The printouts were observed with optical microscopy and scanning electron microscopy. In addition, the key printing parameters were determined, i.e. Ec (critical energy to initiate polymerization) and Dp (penetration depth of curing light). Our results evidence the capability of the synthetized compounds to take part in the photoinitiating systems of complex and demanding 3D printing applications.en
dc.formattextcs
dc.format.extent1-15cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationAdditive Manufacturing. 2021, vol. 48, issue 1, p. 1-15.en
dc.identifier.doi10.1016/j.addma.2021.102447cs
dc.identifier.issn2214-8604cs
dc.identifier.orcid0000-0002-7056-5571cs
dc.identifier.other174958cs
dc.identifier.researcheridAAB-9822-2019cs
dc.identifier.scopus55991983000cs
dc.identifier.urihttp://hdl.handle.net/11012/203337
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofAdditive Manufacturingcs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S2214860421005996cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2214-8604/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subject3D-VAT printingen
dc.subjectCNTs nanocompositesen
dc.subjectDLP printingen
dc.subjectLaser 3D printingen
dc.subjectPhoto-rheologyen
dc.subjectPhotoinitiating systemen
dc.subjectPhotopolymerizationen
dc.titleHarnessing light to create functional, three-dimensional polymeric materials: multitasking initiation systems as the critical key to successen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-174958en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:51:22en
sync.item.modts2025.01.17 18:38:27en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Sdílená laboratoř RP1cs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé polymerní materiály a kompozitcs
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Pokročilé polymerní materiály a kompozit
Sdílená laboratoř RP1