and Degradation Mechanisms

introduction polyurethane rigid foams are widely used in various industries, including construction, insulation, packaging, and transportation, due to their excellent thermal insulation properties, lightweight nature, and structural strength. the formation of polyurethane (pu) involves the reaction between a polyol and an isocyanate, a process that requires catalysts to achieve desired reaction rates, foam morphology, and final product properties. catalysts play a crucial role in determining the…