Bio-Based Viscoelastic Polyurethane Foams: Functional Behavior Across Application Temperatures.

ABSTRACT: Viscoelastic polyurethane foams were prepared using four different bio-based polyols derived from coconut oil (CO), palm oil (PO), duck fat (DF), and pork fat (PF), employing up to 20 wt.% of the polyol component in a conventional formulation. The introduction of bio-polyols into the polyurethane formulation gave rise to an early minor decomposition of modified foams at low temperatures; however, the overall thermal stability improved slightly by the elimination of some intermediate decomposition stages. The glass transition temperature of foams was only moderately influenced and remained in the typical temperature range (around 10 °C). The effect of biopolyol type and content (5-20 wt.%) on the mechanical properties of the foams was investigated over the temperature range -20 to 40 °C. At

SUBMITTER: Malewska E 

PROVIDER: S-EPMC12846099 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature