Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 26, 2022 - September 28, 2022
Recently, fabrication of piezoelectric-particle-dispersed polymer composite materials using a 3D-printer has been attracting attention. By combining conventional thermoplastic polymer filaments with functional filaments containing piezoelectric ceramic particles, it is possible to add functions such as sensors, actuators, and energy harvesters to the structure, enabling the integrated fabrication of multifunctional devices. In this study, we investigate the enhancement of macroscopic piezoelectric properties of 3D-printed composites in the heterostructure of dual filaments with different piezoelectric particle content compared to the homostructure of single filaments, by numerical analysis and fabrication. Multi-scale analysis by the homogenization theory was applied to confirm the superiority of the heterostructure. Moreover, filaments with barium titanate particles were fabricated, and the relationship between piezoelectric properties and content ratio was clarified.
