pps proceeding - Abstract Preview
pps proceeding
Symposium: S11 - Additive Manufacturing
Oral Presentation
 
 

Monitoring and characterization of Hybrid Acrylic/Epoxy DLP-3D Printable Materials

dkier mohamed (1)*, Barrès Claire (1), Charmeau Jean-Yves (1)

(1) Université de Lyon, CNRS, UMR 5223, INSA Lyon, Ingénierie des Matériaux Polymères - Villeurbanne - France

Additive manufacturing technologies based on liquid resins, such as digital light processing (DLP), display higher accuracy and resolution than other printing techniques. Ultraviolet printing techniques generally use printable formulations that are based on commercially available acrylic-epoxy monomers due to their fast reactivity, which is balanced with the good obtained parts properties. Overall, there have been numerous successes in printing acrylic-epoxy but they generally suffer from relatively poor processability conditions. In this study, different hybrid printable formulations that are based on acrylic-epoxy resins and ceramic filler are introduced and their printability on DLP machines is demonstrated. Herein, we conduct experiments to characterize the physico-chemical features and the evolution of materials properties of the hybrid system. Indeed, the cure condition and glass transition evolution of a UV-curable acrylic-epoxy resin system were studied using differential scanning calorimetry. The reactivity of the different formulations during irradiation was evaluated through in-situ monitoring of this fast reaction. Then, the mechanical properties and morphological characteristics were studied on printed samples.