| 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 |
Investigation on Multifunctional Properties of Polyurethane/Halloysite Nanotube Nanocomposites via Fused Deposition Modelling |
| Author(s) |
Wendy Triadji Nugroho, Yu Dong, Alokesh Pramanik |
| On-Site Speaker (Planned) |
Yu Dong |
| Abstract Scope |
Polyurethane (PU) benefits from its excellent biocompatibility and flexibility, which can be widely used in biomedical and electronic fields. Since low mechanical strength typically limits widespread applications of PU, reinforcing nanofillers such as halloysite nanotubes (HNTs) are necessary to improve mechanical performance of PU nanocomposites. This paper investigated additively manufactured PU/HNT nanocomposites via fused deposition modelling (FDM) to achieve excellent multifunctional properties such as mechanical and thermal properties, as well as shape memory behaviour. It was observed that the incorporation of HNT particles up to 8 wt% enhanced tensile strength and tensile modulus of additively manufactured PU/HNT nanocomposites by 30.4 and 47.2% respectively. Furthermore, the inclusion of HNTs improved thermal stability, glass transition temperature (Tg), melting temperature (Tm) and crystallisation temperature (Tc), compressive strength, compressive modulus, as well as specific energy absorption (SEA) and shape fixity ratio of such nanocomposites. Additionally, HNTs were also observed to greatly resist crack propagation under imposed compressive loads. On the other hand, it is also worth mentioning that the presence of HNTs declined dimensional accuracy and surface quality of nanocomposite samples. Elongation at break and shape recovery ratio of PU/HNT nanocomposites were decreased by 28.7% and 9.8% with the addition of 10 wt% HNTs. Overall, the incorporation of HNTs significantly increased multifunctional properties of additively manufactured PU/HNT nanocomposites. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |