Investigating the Solubility of 2-Propylimidazole in Common Epoxy Resin Types Abstract: This study investigates the solubility of 2-propylimidazole (2-PI), a widely used latent curing agent, in various common epoxy resin types. Understanding the solubility characteristics of 2-PI in different epoxy resins is crucial for optimizing the formulation of epoxy-based adhesive and composite materials. The miscibility...