NEWS

Vinyl Ester Resins is a highly corrosion-resistant resin synthesized by reacting methacrylic acid with bisphenol A epoxy resin. This resin has excellent heat resistance, adhesion and chemical resistance, simple molding process, good dimensional stability, and excellent mechanical properties.
The characteristics of vinyl ester resin are as follows:
The double bonds at both ends of the molecular chain are extremely active, allowing the vinyl resin to quickly solidify and gain strength, resulting in highly corrosion-resistant polymers.
Synthesized using methacrylic acid, the methyl group on the ester bond edge can provide protection and improve hydrolysis resistance.
The resin has a low ester bond content, which is 35-50% less per mole than chemically resistant polyester (bisphenol A-fumaric acid UPR), improving its alkali resistance.
More secondary hydroxyl groups can improve the wetting and bonding properties of glass fibers, and enhance the mechanical strength of laminated products.
Due to crosslinking only at both ends of the molecule, it has excellent high elongation and fiberglass wettability, making it suitable for various FRP processes such as large-scale on-site winding and extrusion, as well as anti-corrosion construction.
It can be cured at low temperatures, and the thickness of the construction can be formulated according to different construction requirements. It can also be used in conjunction with fiber cloth to achieve construction effects of different thicknesses.
The cured vinyl resin has good heat resistance and high cross-linking density, which can extend the service life of equipment or floors used for construction and coating. Its corrosion resistance is particularly good for environments with organic solvents or chlorine containing solutions, and its usage effect is better.
In addition, vinyl ester resin is also a thermosetting resin, and its solution in liquid vinyl monomers (such as styrene or a mixture of styrene and methyl methacrylate) can form a body structure after crosslinking and curing. This type of resin is usually subjected to a temperature of 190-220 ℃ in the polyester condensation reaction until it reaches the expected acid value (or viscosity). After the polyester condensation reaction is completed, a certain amount of vinyl monomer is added while hot to form a viscous liquid. This polymer solution is called vinyl ester resin.