Enhancing Reaction Selectivity with Trimethylaminoethyl Piperazine Amine Catalyst in Rigid Foam Manufacturing 📚 Abstract Rigid polyurethane (PU) foams are widely used in insulation, construction, and packaging due to their excellent thermal insulation properties, lightweight nature, and cost-effectiveness. The manufacturing process involves a complex interplay of reactions, primarily the urethane (polymerization) and blowing (expansion) reactions. Achieving...