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dc.contributor.authorVenkatesh, Chaitra
dc.contributor.authorFuenmayor, Evert
dc.contributor.authorDoran, Patrick
dc.contributor.authorMajor, Ian
dc.date.accessioned2020-02-28T11:56:56Z
dc.date.available2020-02-28T11:56:56Z
dc.date.copyright2019
dc.date.issued2019
dc.identifier.citationVenkatesh, C., Fuenmayor, E., Doran, P., Major, I., Lyons, J.G., Devine, D.M. (2019). Additive manufacturing of PLA/HNT nanocomposites for biomedical applications. Procedia Manufacturing. 38: 17-24. DOI: 10.1016/j.promfg.2020.01.003en_US
dc.identifier.issn2351-9789
dc.identifier.otherArticles - Materials Research Instituteen_US
dc.identifier.urihttp://research.thea.ie/handle/20.500.12065/3017
dc.description.abstractAdditive manufacturing has been of great interest of research in various applications due to their ease in processability, cost effectiveness and adaptability. In this study Poly Lactic Acid (PLA) was used as the base polymer which was reinforced with Halloysite Nanotubes (HNT) powder as they are known to be biodegradable and has high mechanical properties individually. HNT loadings with 3% and 5% were added to PLA by the method of twin screw extrusion and pelletized. For comparison, the PLA on its own was also extruded and pelletized. The resultant homogeneous pellets was extruded successfully into filaments of 1.75±0.10 mm diameter using twin screw extruder with specialized die fixed to the extruder for the manufacture of production grade 3D printing filament. This resultant filament was utilized for Fused Filament Fabrication (FFF) into standard tensile test bars and 25mm medical implants using a standard FFF printing machine. The 3D printed samples were characterized for mechanical properties by uniaxial tensile test and thermal stability by Differential scanning calorimetry. Interestingly there was no significant change in the mechanical properties of the 3D printed tensile bars due to the processing parameters during FFF. However, the decrease in cold crystallization temperature by DSC indicates the nucleating effect of the HNT on the PLA matrix which in turn increases the mechanical properties. We could successfully 3D print model medical implants.en_US
dc.formatPDFen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofProcedia Manufacturingen_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Ireland*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/ie/*
dc.subjectAdditive manufacturingen_US
dc.subjectFused filament fabricationen_US
dc.subjectBiodegradable stentsen_US
dc.subjectPolylactic aciden_US
dc.subjectHalloysite nanotubesen_US
dc.titleAdditive manufacturing of PLA/HNT nanocomposites for biomedical applicationsen_US
dc.typeArticleen_US
dc.description.peerreviewyesen_US
dc.identifier.conference29th International Conference on Flexible Automation and Intelligent Manufacturing (FAIM2019), June 24-28, 2019, Limerick, Ireland.
dc.identifier.doiDOI: 10.1016/j.promfg.2020.01.003
dc.identifier.orcidhttps://orcid.org/0000-0003-4105-6273
dc.identifier.orcidps://orcid.org/0000-0001-8982-7845
dc.identifier.orcidhttps://orcid.org/0000-0002-0538-9786
dc.identifier.orcidhttps://orcid.org/0000-0003-1998-070X
dc.identifier.orcidhttps://orcid.org/0000-0002-1364-5583
dc.rights.accessOpen Accessen_US
dc.subject.departmentMaterials Research Institute - AITen_US


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Attribution-NonCommercial-NoDerivs 3.0 Ireland
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Ireland