About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
Molecular Approaches to Ceramics; Synthesis, Processing, Modeling, and Derived Ceramics
|
| Presentation Title |
Tailoring Polymer Grafted Nanoparticle Properties Via Modification of Polymer Structure and Nanoparticle Composition |
| Author(s) |
Jordan Zackasee, Abigail Advincula, James Ponder, Timothy Pruyn, Jared Delcamp, Matthew Dickerson |
| On-Site Speaker (Planned) |
Jordan Zackasee |
| Abstract Scope |
Preceramic polymer grafted nanoparticles (PCP-GNPs) are a promising avenue to generate additively manufactured ceramics and ceramic matrix composites (CMCs). The prospective applications of GNPs stem from their compositional tailorability, improved processability relative to ceramic powder slurries, and reduction of volumetric shrinkage. However, current PCP GNPs suffer from low ceramic yields due to corona materials lacking cross-linking functionality, allowing degradation during pyrolysis. In this work, we analyze the impact of polymer architecture and core composition on the ceramic yields, processability, and ceramic composition of PCP-GNPs. These corona materials contain cross-linking functionality, encouraging 3D polymer network formation during curing. Additionally, rheological experiments help elucidate the relationship between compound processability and GNP makeup. Furthermore, the final ceramic composition was modified via substitution of differing ceramic nanoparticles and PCPs. Overall, these PCP GNP systems exemplify the tunability attainable with hybrid materials to enable improved ceramic yields, enhanced processability, and controlled ceramic nanostructures. |