| 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 |
Enhancing the Thermal Stability of Polyamide 6 in Powder Bed Fusion via Primary and Secondary Antioxidant Incorporation |
| Author(s) |
Andreas Jaksch, Simon Cholewa, Dietmar Drummer |
| On-Site Speaker (Planned) |
Andreas Jaksch |
| Abstract Scope |
Polyamide 6 (PA6) is a widely used thermoplastic material in manufacturing due to its outstanding mechanical properties, such as high strength, stiffness, and toughness. However, PA6's vulnerability to thermo-oxidative aging makes it less suitable for powder bed fusion (PBF), as it results in material degradation and mechanical property deterioration over time. To address this issue, this study investigates the efficacy of antioxidants in improving PA6's aging resistance in PBF.
To elucidate the physical and chemical changes in the material, process-adapted analyses are conducted using a coupled rheometer FTIR instrument. Furthermore, the study evaluates the viscosity number of the virgin and processed powder, the yellow index, and the part performance to characterize the aging occurring in the PBF process. The results indicate that addition of primary and secondary antioxidants significantly improves PA6's aging resistance in PBF, thus enhancing its potential as a suitable material for additive manufacturing applications. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |