Piezoelectric characterization of 3D-printed ceramic particle-dispersed thermoplastics

A thermoplastic resin containing dispersed piezoelectric ceramic particles, which hold potential for application in printable electronic devices, was processed via fused filament fabrication (FFF) to evaluate its functional properties. Key characteristics such as the piezoelectric strain constant and dielectric constant were measured. For comparison, specimens were also prepared by melt casting using the same filament material. The results revealed that FFF led to an approximately 55% enhancement in piezoelectric performance compared to melt casting, indicating that the 3D printing process can significantly improve functional properties in particle-dispersed thermoplastic composites.