About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Symposium
|
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Reactive Extrusion Additive Manufacturing (REAM) of Functionally Graded Field-Responsive Thermoset Composites |
Author(s) |
Oliver Uitz, Ademola Oridate, Rui Leng, Tan Pan, Carolyn Seepersad, Zoubeida Ounaies, Mary Frecker |
On-Site Speaker (Planned) |
Carolyn Seepersad |
Abstract Scope |
Reactive extrusion is an AM process in which a motion-controlled nozzle mixes and immediately deposits a multi-part thermoset resin to create layered parts that cure rapidly in the ambient environment. By mixing filled and neat resins on demand, it is possible to functionally grade both the structure and the resulting properties of the parts. This research investigates a two-part shape memory polymer in which a low viscosity resin is combined with a crosslinker to yield a thermoset polymer part with structural integrity. Magneto-active iron oxide particles are added to the epoxy resin to create a filled resin that is mixed on demand with neat epoxy resin and crosslinker; control over the mixing and deposition results in a customized distribution of iron oxide content spatially within a part. These composites are shape programmed, and the effect of the functional grading on the magneto-active properties of the shape memory polymer are demonstrated. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |