| About this Abstract |
| Meeting |
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Symposium
|
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Presentation Title |
Engineering Advanced Glass Fiber Reinforced-Shape Memory Composites Via Mechanochemistry and Transparent Conductive Oxides |
| Author(s) |
Chris Whitney, Xingbang Zhao, Aditi Chattopadhyay, Jose Roman, Lenore Dai |
| On-Site Speaker (Planned) |
Chris Whitney |
| Abstract Scope |
Demand for highly integrated, multifunctional materials is increasing with particular interest in advanced composite systems possessing shape memory, electroactivity, in situ feedback, and self-healing functionalities. Materials engineering has progressed development of such functionalities in the form of highly tunable shape memory systems; conductive systems through the use of fiber, fillers, films; and mechanically responsive systems through incorporation of mechanochemistry. Coupling these material advancements requires considerable engineering to facilitate synergies between functional enhancements and presents an exciting opportunity for development of an advanced multifunctional composite system.
Our work demonstrates the engineering of a superior multifunctional glass fiber-reinforced composite that is electrically conductive, self-sensing, with shape memory properties. This is accomplished by using sol-gel processing techniques to deposit an Indium Tin Oxide (ITO) thin film to the glass fiber substrate as well as chemically grafting of a cinnamoyl-based mechano-responsive chemistry to a secondary amine crosslinking agent which is used in tandem with a tunable shape memory thermoset. We then experimentally demonstrate system characteristics through a suite of experimental evaluations, including: uniaxial load testing, dynamic mechanical analysis to characterize viscoelastic and shape memory properties, energy-dispersive X-ray spectroscopy and scanning electron microscopy to characterize morphological and compositional characterization, and validation of in situ self-sensing for early damage detection and conductive characteristics under loading conditions. Our work constitutes a promising step in advancing glass fiber-reinforced composite systems through a unique coupling of technological material enhancements. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |