About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Bio-Nano Interfaces and Engineering Applications
|
| Presentation Title |
Interpenetrating Polymer Network as Interface Material in Bioinspired Composites |
| Author(s) |
Hortense Le Ferrand |
| On-Site Speaker (Planned) |
Hortense Le Ferrand |
| Abstract Scope |
Natural ceramic composites are notable for their outstanding mechanical properties that results from their complex microstructure and the presence of weak interfaces from a low strength organic glue between the mineral particles.
Using aluminum oxide platelets as the mineral reinforcement, we create hierarchical composites with well-define microstructure and a bio-mimicking organic interface. We simultaneously assemble the platelets into their microstructure and crosslink the surrounding matrix in a one-pot synthesis method. The microstructure is obtained using magnetically assisted slip casting while the matrix is an interpenetrated polymer network (IPN) made of polyacrylamide and polyN-isopropylacrylamide. Coupled with an alternating microstructure, the IPN interface enhances the compressive toughness of the composites by 205 % as compared to the the composites with horizontal or vertical microstructure, with less than 35% reduction on the stiffness. This approach opens the opportunity to study the influence of water as a plasticizer and to include chemical grafting. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Surface Modification and Coatings, |