| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Additive Manufacturing of Modular Soft Stretchable Elastomers for Adaptive Dissipative Structures |
| Author(s) |
Daniel A. Rau, Myoeum Kim, Liheng Cai |
| On-Site Speaker (Planned) |
Daniel A. Rau |
| Abstract Scope |
Additive manufacturing of elastomers enables fabrication of many technologically important structures and devices. However, the basic materials are limited to a few thermoplastics and photocrosslinkable networks with a limited range of accessible stiffness and stretchability. Here, we develop a modular, soft, and stretchable acrylate-based elastomeric resin for stereolithography additive manufacturing. The resin can be photocrosslinked to form a network consisting of both covalent and reversible bonds. By controlling the ratio of covalent and reversible bonds, we create elastomers with a wide range of stiffness from nearly 20-300 kPa and tensile breaking strain from 75% to 1360%. We demonstrate printing this resin to produce high-resolution three-dimensional structures with extreme dissipative properties that can protect brain tissue mimicking soft gels from impact damage. Together with the low cost of raw chemicals and modular material design, our soft and stretchable elastomeric resins provide a new class of soft materials for additive manufacturing. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |