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)
|
Presentation Title |
Functional Polyurethane Composites via Reactive Binder Jetting (RBJ) of a Dual-ink Binding System |
Author(s) |
Arielle Torres, Yinfeng He, Richard Hague, Christopher Tuck |
On-Site Speaker (Planned) |
Arielle Torres |
Abstract Scope |
Powder consolidation via additive manufacturing (AM) requires high processing temperatures. Repeated exposure at elevated temperatures causes degradation in unused polymer powders leading to poor part performance and limited recyclability for powder-based AM processes, such as Selective Laser Sintering. This work focuses on Reactive Binder Jetting (RBJ), a novel AM process which forms three-dimensional (3D) composite parts without lasers or other high temperature elements. Powder consolidation occurs when the reactive dual-ink binding system polymerises to form strong covalent bonds between particles. A custom inkjet printer equipped with dual-printhead and integrated powder bed is used to fabricate 3D composite polyurethane structures with tuneable mechanical properties. This work demonstrates the versatility and control RBJ offers the manufacturing industry by enabling users to tailor ink formulations and printing parameters to fabricate functional polymeric parts that elicit a range of properties. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |