Determination of thermo-mechanical properties of recycled polyurethane from glycolysis polyol

Polyurethane foam is one of the most versatile polymers widely used in automotive industry. However, due to rising amount polyurethane waste environment, there growing research attention focusing on circular economy solutions closing material loop. This study aimed determine possible changes thermo-mechanical properties between rigid prepared using polyols derived from depolymerization commercial with benchmark (Ben PU). foams containing dispersion polyol were reacted dipropylene glycol (DPG) and diethylene (DEG) a ratio DPG: DEG 1:1 presence consumable catalyst (Di-n-butyl amine). The recovered was as raw replacing 100% petroleum-based polyester produce recycled (Rec Thermal analysis conducted measure polyurethane's glass transition temperatures (Tg) differential scanning calorimetry (DSC). Tensile strength, elastic modulus, toughness, hardness test under three different temperatures; 24°C, 40°C, 60°C. From DSC results, for occurred at 43°C 50.4°C, respectively. Both showed brittle-ductile 24°C 40°C. strength lower than that by 29-43% corresponding 24-50% decrease modulus. Recycled recorded toughness pure 13-16%. polymer high shored D values 9-29%. reveals could be feedstock production applications tailored its mechanical properties.