About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Special Session
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Presentation Title |
Additive Manufacturing of a Carbon Fiber Reinforced Thermoset Resin via Reactive Extrusion Additive Manufacturing (REAM) |
Author(s) |
Pratik Koirala, Oliver Liam Utiz, Ademola A Oridate, Carolyn Conner Seepersad, Mehran Tehrani |
On-Site Speaker (Planned) |
Pratik Koirala |
Abstract Scope |
This project investigates a novel additive manufacturing (AM) technique, reactive extrusion AM, for carbon fiber reinforced thermosetting resins. The process utilizes highly exothermic resin/catalyst systems with fast curing cycles, eliminating the need for an external energy source. Chemical cross-linking occurs between the printed layers, resulting in parts with strong interlayer properties. Carbon fibers are added to the thermosetting resin for mechanical reinforcement with fumed silica as a rheology modifier. Inter- and intra-layer tensile properties of REAM neat polymer and composites reinforced with 20wt.% of milled fibers are measured. These properties are correlated, using a mechanics model, to the fiber length/orientation distributions data attained from X-ray-micro computed tomography(uCT). Degree of curing is also characterized using Differential Scanning calorimetry (DSC)and correlated to thermal images captured during parts’ AM. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |