Pentamethyl Diethylenetriamine (PC-5): A Versatile Accelerator for Structural Composite Curing Introduction Pentamethyl Diethylenetriamine (PC-5), also known by its chemical formula C₉H₂₃N₃, is a tertiary amine widely employed as a catalyst or accelerator in various industrial applications, particularly in the realm of structural composite materials. Its efficacy in reducing cure times while maintaining desirable mechanical properties...