About this Abstract |
Meeting |
MS&T23: Materials Science & Technology
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Symposium
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Additive Manufacturing of Polymeric-based Materials: Challenges and Potentials
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Presentation Title |
Quick Cure Silicones for Nontraditional Architectures |
Author(s) |
Anna Guell Izard, Lemuel Xavier Perez Perez, Jeremy Lenhardt, Todd Weisgraber, Ilse Van Meerbeek, A. Melody Golobic |
On-Site Speaker (Planned) |
Anna Guell Izard |
Abstract Scope |
Silicone elastomers have a broad variety of applications, such as soft robotics, and structural metamaterials. Extrusion-based method known as direct ink write (DIW), has enabled the production of additively manufactured silicone structures. However, this method is limited to manufacturing mostly planar structures. Because of the low self-supporting capabilities of extruded strands, the obtention of tall or overhanging structures is not feasible. Here, we present a Quick-cure silicone-based ink that allows us to manufacture complex three-dimensional structures. Silicone structures are manufactured with Quick-cure ink by coextruding and inline mixing a part A containing a catalyst and a part B containing a crosslinker. By the virtue of crosslinking, extruded strands rigidize, increasing their self-supportive capacity. Hence, allowing the obtention of structures with superior shape retention and manufacturing previously unattainable parts.
This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. LLNL-ABS-846973 |