Influence of FFF Process Conditions on the Thermal, Mechanical, and Rheological Properties of Poly(hydroxybutyrate-co-hydroxy Hexanoate)

Simple item page
dc.contributor.authorCaputo, Maria Rosariacs
dc.contributor.authorFernández, Mercedescs
dc.contributor.authorAguirresarobe, Robertcs
dc.contributor.authorKovalčík, Adriánacs
dc.contributor.authorSardon, Haritzcs
dc.contributor.authorCandal, María Virginiacs
dc.contributor.authorMüller, Alejandro J.cs
dc.coverage.issue8cs
dc.coverage.volume15cs
dc.date.issued2023-04-07cs
dc.description.abstractPolyhydroxyalkanoates are natural polyesters synthesized by microorganisms and bacteria. Due to their properties, they have been proposed as substitutes for petroleum derivatives. This work studies how the printing conditions employed in fuse filament fabrication (FFF) affect the properties of poly(hydroxybutyrate-co-hydroxy hexanoate) or PHBH. Firstly, rheological results predicted the printability of PHBH, which was successfully realized. Unlike what usually happens in FFF manufacturing or several semi-crystalline polymers, it was observed that the crystallization of PHBH occurs isothermally after deposition on the bed and not during the non-isothermal cooling stage, according to calorimetric measurements. A computational simulation of the temperature profile during the printing process was conducted to confirm this behavior, and the results support this hypothesis. Through the analysis of mechanical properties, it was shown that the nozzle and bed temperature increase improved the mechanical properties, reducing the void formation and improving interlayer adhesion, as shown by SEM. Intermediate printing velocities produced the best mechanical properties.en
dc.formattextcs
dc.format.extent1-25cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPolymers. 2023, vol. 15, issue 8, p. 1-25.en
dc.identifier.doi10.3390/polym15081817cs
dc.identifier.issn2073-4360cs
dc.identifier.orcid0000-0003-4833-7369cs
dc.identifier.other183686cs
dc.identifier.researcheridI-7386-2015cs
dc.identifier.urihttp://hdl.handle.net/11012/244324
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofPolymerscs
dc.relation.urihttps://www.mdpi.com/2073-4360/15/8/1817cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2073-4360/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectadditive manufacturingen
dc.subjectpoly(hydroxybutyrate-co-hydoxyhexanoate)en
dc.subjectbiodegradableen
dc.subjectmechanical propertiesen
dc.subjectcrystallinityen
dc.titleInfluence of FFF Process Conditions on the Thermal, Mechanical, and Rheological Properties of Poly(hydroxybutyrate-co-hydroxy Hexanoate)en
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-183686en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:38:43en
sync.item.modts2025.01.17 15:29:04en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie potravin a biotechnologiícs
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
polymers1501817.pdf
Size:
4.03 MB
Format:
Adobe Portable Document Format
Description:
file polymers1501817.pdf
Download
Collections
Ústav chemie potravin a biotechnologií