| 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 |
Interlaminar Shear Strength of Carbon/Epoxy Laminates Containing Magnetically Aligned Nickel-Coated, Diazotized Carbon Nanotubes |
| Author(s) |
Jackson A. Schwarz, Ricardo Braga Nogueira Branco, Charles E. Bakis, Namiko Yamamoto |
| On-Site Speaker (Planned) |
Jackson A. Schwarz |
| Abstract Scope |
Carbon nanotubes (CNTs) have been shown to provide multifunctional reinforcement to carbon fiber reinforced polymers (CFRPs). However, obtaining well controlled properties though tight control of dispersion and orientation remains an ongoing challenge. Use of magnetic fields and magnetically responsive CNTs offer a potential solution to this challenge. As well, surface functionalization of the nanoparticle surface has shown to unlock further enhancements in mechanical properties. This investigation aims to develop a vacuum bag oven (VBO) epoxy film infusion (RFI) process in which CNTs of controlled distribution and orientation are infused into dry carbon fabric. CNTs were fabricated with a thin coating of nickel for magnetic responsiveness and were functionalized using diazotization to improve dispersion and enable covalent CNT crosslinking within the epoxy matrix. A magnetic field was applied during CNT/epoxy film B-staging, laminate cure, or during both steps. Laminate quality was assessed via optical microscopy and interlaminar shear strength (ILSS) was obtained using a three-point bending test. Results obtained to-date show that the neat-epoxy baseline laminate has an ILSS of 52.7 ± 1.7 MPa, and the laminate with 0.1% by volume randomly oriented CNTs has an ILSS of 57.2 ± 4.1 MPa. Laminates with aligned CNTs are currently being manufactured, and the final paper will include a comparison of laminate quality and ILSS for the various procedures employed in the making the laminates with no CNTs, unaligned CNTs, and aligned CNTs. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |