Processing of High Performance Fluoropolymers by Laser Sintering

dc.creatorCampanelli, Carlo
dc.creatorWildman, Ricky D.
dc.creatorTuck, Christopher J.
dc.date.accessioned2021-11-11T16:13:08Z
dc.date.available2021-11-11T16:13:08Z
dc.date.issued2018
dc.description.abstractOne of the main limitations of laser sintering (LS) is its narrow material portfolio. Fluoropolymers are a family of polymers with outstanding properties such as wide service temperatures (−260 °C - +260 °C), excellent resistance to chemicals, sunlight, flames, and weathering without the addition of stabilizers, plasticizers or fillers. In this study, fluoropolymers such as perfluoroalkoxy (PFA) and polychlorotrifluoroethylene (PCTFE) have been used in laser sintering. PFA and PCTFE have melting temperatures of 304 °C and 210 °C respectively which make them challenging to process. Our results demonstrate the feasibility of these materials in LS and that warping was the major issue encountered due to the relatively low powder bed temperature of ∼182 °C. We illustrate how particle size, additives, and thermal conditioning affect the powder flow and how the warping can be decreased by utilizing a modified build plate, and different scan strategies and part orientations. Flat sheets were successfully produced with potential use in membrane-based applications.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/90232
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/17153
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2018 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectpart processingen_US
dc.subjectfluoropolymersen_US
dc.subjectlaser sinteringen_US
dc.titleProcessing of High Performance Fluoropolymers by Laser Sinteringen_US
dc.typeConference paperen_US
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