Enhancing Fire Resistance of Polyurethane Foams Through Polyurethane Trimerization Catalysts Abstract: Polyurethane (PU) foams are widely utilized in various applications due to their versatility, cost-effectiveness, and desirable mechanical properties. However, their inherent flammability poses a significant safety concern. This article explores the utilization of polyurethane trimerization catalysts as a strategy to enhance the fire resistance...