kovettajien
Kovettajien, in Finnish, refers to curing or hardening agents used in resin systems. These reactive chemicals initiate and accelerate the chemical reactions that convert liquid resins into solid, crosslinked polymers. Kovettajat determine cure time, temperature requirements, mechanical properties, and final performance of the material. They are employed across a range of thermosetting resins, including epoxies, polyurethanes, silicones, and acrylates, and are chosen to match the resin chemistry and the intended application.
In epoxy systems, kovettajat are typically amine- or anhydride-based. Amine hardeners react with epoxy groups to
Other resin systems use different classes of kovettajat. Polyurethane formulations rely on isocyanate-based hardeners to create
Selecting an appropriate kovettaja involves matching functional groups, stoichiometry, temperature conditions, and desired properties such as