About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Reactive Extrusion Additive Manufacturing of a Highly Loaded Carbon Fiber Reinforced Epoxy |
Author(s) |
Pratik Koirala, Jacob Aber , Cole Mensch, Robert Pavlovic, Michael Fogg, Carolyn Seepersad, Mehran Tehrani |
On-Site Speaker (Planned) |
Pratik Koirala |
Abstract Scope |
This talk focuses on in-nozzle mixing of a carbon fiber-filled resin with its hardener to fabricate composite parts using reactive extrusion additive manufacturing (REAM). In REAM, a thermoset resin is mixed with its hardener inside the nozzle and deposited and cured in situ via chemical cross-linking without external heat. Carbon fibers added to resins enhance their mechanical and thermal properties but are known to make them significantly more viscous. Therefore, incorporating active mixing is essential to uniformly mix and extrude the resin filled with relatively high volume fractions of carbon fibers. In this study, resins with 20-30 wt.% milled carbon fibers are processed in a REAM system coupled with an active mixing nozzle. Mechanical and thermal properties of printed parts are examined and correlated with their degree of curing and fiber orientation distribution in printed parts. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |