Vinylesterien

Vinylesterien are a class of resins derived from the esterification of unsaturated monocarboxylic acids with epoxide resins. This process creates a unique polymer structure that combines the desirable properties of both polyesters and epoxies. They are known for their excellent chemical resistance, particularly to acids, alkalis, and solvents, as well as their good mechanical strength and toughness. The curing process of vinylesters typically involves a free radical polymerization initiated by organic peroxides, often in conjunction with promoters. This curing can occur at ambient temperatures, making them suitable for a wide range of manufacturing processes. Vinylester resins find extensive application in the production of corrosion-resistant equipment such as chemical storage tanks, pipes, and scrubbers. They are also utilized in the marine industry for boat hulls and in the automotive sector for body panels and other components where strength and chemical inertness are crucial. Their relatively low viscosity compared to some epoxies can facilitate easier processing and wetting of reinforcing fibers like glass or carbon fiber. Compared to traditional unsaturated polyester resins, vinylesters offer superior performance in harsh chemical environments and improved mechanical properties, while often being more cost-effective than high-performance epoxies.