Performance enhancement of NaOAc/Canna Edulis ker. starch-based bioplastic: mechanical and thermal behavior properties

This cutting-edge research unveils a breakthrough in eco-friendly bioplastics using sodium acetate (NaOAc)-modified Canna edulis ker. starch (CEKS). Bioplastics were synthesized by varying NaOAc concentrations (0–30% w/w), and the optimal sample (BP/md3) exhibited a tensile strength of 15.62 ± 0.62 MPa, an elongation at break of 17.78 ± 1.57%, and a Young’s modulus of 99.52 ± 13.04 MPa. Enhanced hydrophobicity was confirmed with a water contact angle of 80.81°, along with reduced water binding capacity (122.87%). Thermal analyses showed higher thermal stability, with BP/md3 exhibiting smoother degradation and a higher residual mass (21.16%) at 600 °C compared to the control. XRD and FT-IR analyses confirmed increased crystallinity (60.43%) and successful chemical modification. This next-generation bioplastic not only outperforms previous iterations but also aligns with industry standards (SNI 7188.7:2022 and JIS Z 1707:2019). The study’s findings pave the way for a new era of sustainable packaging solutions, offering a promising and viable alternative to conventional plastics while addressing pressing global environmental concerns.