ORGS5-0316
Processing and Characterization of Biopolyol-Based Smart Polyurethane
Topic
GS5. Graduate Student Oral Session V: Sustainable Polymers and Circular Materials
When and Where
Sep 28, 2026
16:36 - 16:48
Room 105
Session Chairs
Taehoo CHANG
Taejun EOM
Chae Bin KIM
Presenter(s)
Wonjin Lee (Seoul National University)
Co-Author(s)
Abstract
As environmental concerns continue to rise and regulatory standards become more stringent, the demand for biodegradable plastics has increased significantly. Although polyurethane offers excellent processability and versatility, its transition toward biodegradable systems has become increasingly important. In this study, biodegradable polyurethane materials were prepared through two different processing routes: reaction injection molding and foaming. Before fabrication, the rheological response and curing behavior of the raw materials and their mixtures were investigated to evaluate their processability and establish suitable processing conditions. For the reaction injection molding process, finite element method simulations were additionally performed to support process analysis and optimization. Based on these experimental and simulation results, appropriate processing windows were determined for each fabrication route. The molded specimens were characterized in terms of mechanical properties and shape memory performance, whereas the foamed samples were evaluated by analyzing their internal cell morphology, shape recovery behavior, and sound absorption characteristics. This study provides process-specific optimization guidelines and suggests a practical approach for fabricating high-performance biodegradable polyurethane materials.
