Superior Vinyl Ester Resin Properties

Vinyl ester resin or often just vinyl ester is a resin produced by the esterification of an epoxy resin with acrylic or methacrylic acids.

Superior vinyl ester resin properties.

Advances in fire retardant materials 2008. If improved durability and impact resistance is important then vinyl esters win over polyesters and again the build can be tailored to use the vinyl esters in those areas with higher impact probability. The resin properties and formulation are similar to derakane 470 36. While vinyl ester resins are classified as polyester based formulations they are actually an intermediate between a polyester backbone and epoxy terminations on the ends of the molecules.

However when crosslinked vinyl esters are noticeably stronger and tougher than conventional polyester resins. Vinyl ester resins are the binary resin systems containing a dimethacrylate monomer from which the cured material gains most of its properties and a reactive monomer such as styrene which acts as a reactive diluent and also takes part in the cross linking reaction. They also have superior stress fatigue and chemical resistance at both room and elevated temperature. Best solvent resistance of any styrenated epoxy vinyl ester resin improved thermal properties.

Epoxy novolak vinyl esters are particularly recommended for use in chlor alkali industry. Flame retardant applications where translucency is required. The vinyl groups refer to these ester substituents which are prone to polymerize. Vinyl ester resins are easy to process and their physical properties in the uncured state are very similar to those of polyester resins.

Vinyl ester resins offer increased strength corrosion resistance and durability and are used in a wide variety of applications. Ecmalon 9921 combines corrosion resistance with superior retention of properties at elevated temperatures.