Epoxy resin is an important type of thermosetting plastic, widely used in adhesives, coatings and other purposes. Also called artificial resin, artificial resin, resin glue, etc. Epoxy resins are thermosetting epoxide polymers. Most synthetic resins are formed by the chemical reaction of epichlorohydrin (C3H5ClO) and bisphenol-A (bisphenol-A) (C15H16O2).
What is unsaturated resin? The earliest resins discovered by humans are fats extracted from the secretions of trees, which is why there are "trees" before "fat".
For heating, melting, cooling, and solidification, and the repetitive fusible resin is called thermoplastic resin. For heating and curing, it is no longer reversible, and it becomes a solid that is neither soluble nor melted. , Unsaturated polyester resin, etc.
In summary, epoxy resins contain double epoxy groups and require amine-based curing agents to participate in the curing reaction. The performance of the final product and the performance of the curing agent are very large, but in general the final cured product of epoxy resin is better than unsaturated polyester The cured product of the resin has high hardness and strength. Of course, the price of epoxy resin is twice that of unsaturated polyester resin. Generally, artificial stone will choose unsaturated polyester resin, because the price is cheap. For floors and anti-corrosion coatings, epoxy resin is chosen because of its better performance.