About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Natural Fibers and Biocomposites
|
| Presentation Title |
Formulation and Characterization of Starch-Based Bioplastics with Sargassum–Sawdust Additives via Factorial Design
|
| Author(s) |
Aline Hernández-García, Darinel Ortíz-Montaño, Alejandra Domínguez-Morales, Milton Carlos Elias-Espinosa, Yazmin Paola Aguirre‑Macías, Pedro Perdigon-Lagunes, Iyari Alejandro Nava-Téllez |
| On-Site Speaker (Planned) |
Darinel Ortíz-Montaño |
| Abstract Scope |
This study reports the development of starch-based biopolymer films using Sargassum spp. (1.3–10% w/w) and sawdust (8.5–13.6% w/w) as fillers, following a 2-factor, 4-level factorial design. The optimal formulation, with a 35:16 mass ratio of sawdust to sargassum, exhibited a density of 1.3 g/mL, a 3.5% moisture content, a 19.4% solubility, a 27.3% water absorption, and a 40% biodegradability. Mechanical testing indicated improved flexibility with moderate tensile strength. TGA confirmed thermal stability, while X-ray diffraction (XRD) analysis revealed semi-crystalline features attributed to cellulose and alginate structures. SEM-EDS revealed a heterogeneous but cohesive morphology, and FTIR spectroscopy identified functional groups (O–H, C=O, C–O) that support hydrogen bonding and polymer-filler interactions. These findings suggest strong compatibility among the components and highlight the potential of this biopolymer for use in packaging and agricultural applications, contributing to biomass valorization and sustainable materials development within a circular economy framework. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Characterization, Sustainability |