What is the difference between performance and usage of vinyl resin and epoxy resin?
Vinyl Ester Resins are internationally recognized as highly corrosion resistant resins.
The standard bisphenol A epoxy vinyl resin is a vinyl resin synthesized by the reaction of methacrylic acid and bisphenol A epoxy resin. It has been dissolved in a styrene solution. This type of resin has the following characteristics:
1. The double bonds at both ends of the molecular chain are extremely lively, which enables the vinyl resin to cure quickly and quickly obtain the strength of use, resulting in a highly corrosion-resistant polymer;
2, the use of methacrylic acid synthesis, ester bond methyl side can play a protective role, improve hydrolysis resistance;
3. The resin contains a small amount of ester bonds and is 35-50% less resistant to chemical polyester (bisphenol A-fumaric acid UPR) per mole ratio, which improves the alkali resistance;
4. More secondary hydroxyl groups can improve the wettability and adhesion of glass fibers, and increase the mechanical strength of the laminated products.
5, due to crosslinking only at the two ends of the molecule.
Flame-retardant vinyl resins are generally synthesized using brominated epoxy resins. Since the resin contains bromine, the flame-retardant vinyl resin can be flame-retardant while having chemical resistance.