Fabrication and Mechanical Characterization of PLA/PCL-MCC Bio-composite Filaments for FDM 4D PrintingOctarina Adiati Juniasih, Fahmi Mubarok and Alvin WidjayaE3S Web Conf., 645 (2025) 01010DOI: https://doi.org/10.1051/e3sconf/202564501010