dmcha (n,n-dimethylcyclohexylamine): an ideal catalyst suitable for a variety of polyurethane formulations introduction the selection of catalyst is crucial in the manufacturing process of polyurethane (pu) materials. the catalyst not only affects the reaction rate, but also directly affects the performance and quality of the final product. as a highly efficient and multifunctional catalyst, n,n-dimethylcyclohexylamine...