About this Abstract |
| Meeting |
2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
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| Symposium
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2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
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| Presentation Title |
Development and Characterization of Hybrid Nanocomposite Photocurable Resin for Vat Photopolymerization |
| Author(s) |
Rahul Sheley, Prakash Rai, Brady Simons, Pete Caranikas, Luke Liesmann, Sandy Hernandez Herrera, Jitendra Tate |
| On-Site Speaker (Planned) |
Rahul Sheley |
| Abstract Scope |
Vat photopolymerization fabricates high-resolution polymer components for functional engineering applications, but stereolithography-printed parts often require nickel coatings to improve mechanical, electrical, and thermal performance. A key limitation is coating failure at elevated temperatures caused by coefficient-of-thermal-expansion mismatch between the polymer and metallic coating. This study develops thermally stable photocurable nanocomposite resins for DLP stereolithography using hybrid nanofiller reinforcement.
The resin systems were formulated with bisphenol A epoxy diacrylate as the base oligomer and trimethylolpropane triacrylate as the reactive diluent. Photopolymerization was initiated using TPO and BAPO photoinitiators. Multi-walled carbon nanotubes, hexagonal boron nitride, and nanosilica were incorporated as hybrid reinforcements. The base resin and hexagonal boron nitride content were held constant, while multi-walled carbon nanotube loading was varied to examine printability, rheological behavior, and thermomechanical response Rheometer, thermomechanical analysis, differential scanning calorimetry, thermogravimetric analysis, scanning electron microscopy, and resistivity measurements were used to characterize printed nanocomposite specimens. |
| Proceedings Inclusion? |
Undecided |