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Artículo

dc.creatorDíaz García, Álvaroes
dc.creatorLaw, Jia Yanes
dc.creatorCota Reguero, Agustínes
dc.creatorBellido-Correa, A.es
dc.creatorRamírez Rico, Joaquínes
dc.creatorSchäfer, R.es
dc.creatorFranco García, Victorinoes
dc.date.accessioned2023-02-14T18:56:48Z
dc.date.available2023-02-14T18:56:48Z
dc.date.issued2020
dc.identifier.citationDíaz García, Á., Law, J.Y., Cota Reguero, A., Bellido-Correa, A., Ramírez Rico, J., Schäfer, R. y Franco García, V. (2020). Novel Procedure for Laboratory Scale Production of Composite Functional Filaments for Additive Manufacturing. Materials Today Communications, 24, 101049. https://doi.org/10.1016/j.mtcomm.2020.101049.
dc.identifier.issn2352-4928es
dc.identifier.urihttps://hdl.handle.net/11441/142718
dc.description.abstractSuccessful 3D printing by material extrusion of functional parts for new devices requires high quality filaments. Uniform homogeneity and good dispersion of particles embedded in filaments typically takes several cycles of extrusion or well-prepared feedstock by injection molding, industrial kneaders or twin-screw compounding. These methods need specific production devices that are not available in many laboratories non-specialized in polymer research, such as those working on different material science and technology topics that try to connect with additive manufacturing. Therefore, laboratory studies are usually limited to compositions and filler concentrations provided by commercial companies. Here, we present an original laboratory scale methodology to custom-prepare the feedstock for extruding magnetic composite filaments for fused filament fabrication (FFF), which is attainable by a desktop single-screw extruder. It consists in encapsulating the fillers in custom made capsules that are used as feedstock and reach the melting area of the extruder maintaining the same concentration of fillers. Results have shown that our approach can create smooth and continuous composite filaments with good homogeneity and printability with fine level of dimensional control. We further show the good dispersion of the particles in the composite filament using X-Ray Tomography, which enabled a 3D reconstruction of the spacial distribution of the embedded magnetic particles. The major advantage of this new way of preparing the composite feedstock is that it avoids the hassle of multiple extrusion runs and industrial machinery, yet providing uniform filaments of well controlled filler concentration, which is predictable and reproducible. The proposed methodology is suitable for different polymer matrices and applicable to other functional particle types, not just limited to magnetic ones. This opens an avenue for further laboratory scale development of novel functional composite filaments, useful for any community. This democratization of complex filament preparation, including consumers preparing their own desired uniform novel filaments, will facilitate to unify efforts nearing 3D printing of new functional devices.es
dc.description.sponsorshipFondo Europeo de Desarrollo Regional MAT-201677265-Res
dc.description.sponsorshipJunta de Andalucía US-1260179, P18-RT-746es
dc.formatapplication/pdfes
dc.format.extent20 p.es
dc.language.isoenges
dc.publisherElsevieres
dc.relation.ispartofMaterials Today Communications, 24, 101049.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectAdditive manufacturinges
dc.subjectMagnetic compositeses
dc.subjectSoft magnetic materialses
dc.titleNovel Procedure for Laboratory Scale Production of Composite Functional Filaments for Additive Manufacturinges
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/acceptedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Física de la Materia Condensadaes
dc.relation.projectIDMAT-201677265-Res
dc.relation.projectIDUS-1260179es
dc.relation.projectIDP18-RT-746es
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.mtcomm.2020.101049es
dc.identifier.doi10.1016/j.mtcomm.2020.101049es
dc.journaltitleMaterials Today Communicationses
dc.publication.volumen24es
dc.publication.initialPage101049es
dc.contributor.funderEuropean Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER)es
dc.contributor.funderJunta de Andalucíaes

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