Introduction N,N-Dimethylcyclohexylamine (DMCHA), with the chemical formula C8H17N, is a tertiary amine widely used as a catalyst in the production of polyurethane (PU) foams. It is a colorless to slightly yellow liquid with a characteristic amine odor. DMCHA’s efficacy stems from its ability to accelerate both the polyol-isocyanate (gelling) and water-isocyanate (blowing) reactions, thereby influencing...