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About this Abstract
Meeting 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Symposium 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Presentation Title Development and Shape Memory Characterization of a High-Entropy & Biodegradable Polymer Blend for Fused Granulate Fabrication
Author(s) Estefania Mireles Flores, David A. Roberson
On-Site Speaker (Planned) Estefania Mireles Flores
Abstract Scope This work details the development of a fully biodegradable, high-entropy polymer (HEP) blend for fused granulate fabrication (FGF) and 4D printing. Dynamic mechanical analysis (DMA) was employed to establish benchmarks for the material system, utilizing the glassy onset temperature and maximum tan δ temperature to determine approximate deformation and recovery temperatures. Thermomechanical cycling using a micro tensile tester equipped with a thermal chamber and a digital image correlation (DIC) system to capture localized strain data was used to determine critical parameters. A Python-based automation workflow was developed to process complex data from the DIC and tensile outputs. This pipeline enables the precise calculation of the shape recovery ratio (Rr), shape fixation ratio (Rf), and shape memory index (SMI). This research provides a scalable methodology for engineering high strength, “smart” biodegradable materials, contributing to the reduction of polymer waste through enhanced material durability and functional 4D printing performance.
Proceedings Inclusion? Undecided

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