Fabrication of Polylactide Nanocomposite Filament Using Melt Extrusion and Filament Characterization for 3D Printing

dc.contributor.advisorTadesse, Yonas
dc.creatorJain, Shrenik Kumar
dc.creator.orcid0000-0003-4209-6592
dc.date.accessioned2017-06-29T11:20:18Z
dc.date.available2017-06-29T11:20:18Z
dc.date.created2017-05
dc.date.issued2017-05
dc.date.submittedMay 2017
dc.date.updated2017-06-29T11:20:19Z
dc.descriptionWinner of the 2018 Best Dissertation prize in the Erik Jonsson School of Engineering and Computer Science
dc.description.abstractFused deposition modeling (FDM) technology uses thermoplastic filament for layer by layer fabrication of objects. To make functional objects with desired properties, composite filaments are required in the FDM. In this thesis, less expensive mesoporous Nano carbon (NC) and carbon nanotube (CNT) infused in Polylactide (PLA) thermoplastic filaments were fabricated to improve the electrical properties and maintain sufficient strength for 3D printing. Solution blending was used for nanocomposite fabrication and melt extrusion was employed to make cylindrical filaments. Mechanical and electrical properties of 1 to 20 wt% of NC and 1 to 3 wt% of CNT filaments were investigated and significant improvement of conductivity (3.76 S/m) and sufficient yield strength (35MPa) were obtained. Scanning electron microscopy (SEM) images exhibited uniform dispersion of nanoparticles in polymer matrix and differential scanning calorimetry (DSC) results showed no significant changes in the glass transition temperature (Tg) for all the compositions. Perspective uses of this filament are for fabrication of electrical wires in 3D printed robots, drones, prosthetics, orthotics and others.
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/10735.1/5457
dc.language.isoen
dc.rightsCopyright ©2017 is held by the author. Digital access to this material is made possible by the Eugene McDermott Library. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
dc.subjectThree-dimensional printing
dc.subjectNanocomposites (Materials)
dc.subjectPolylactic acid
dc.subjectThermoplastics
dc.titleFabrication of Polylactide Nanocomposite Filament Using Melt Extrusion and Filament Characterization for 3D Printing
dc.typeThesis
dc.type.materialtext
thesis.degree.departmentMechanical Engineering
thesis.degree.grantorUniversity of Texas at Dallas
thesis.degree.levelMasters
thesis.degree.nameMS

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