Basic Concepts of Epoxy Resins

Epoxy resin is a high molecular weight polymer, a general term for polymers containing two or more epoxy groups. It is a condensation product of epichlorohydrin and bisphenol A or polyols. Due to the chemical activity of the epoxy group, it can be ring-opened with various compounds containing active hydrogen, curing and cross-linking to form a network structure, making it a thermosetting resin. Epoxy resins possess excellent adhesion, corrosion resistance, insulation, and high strength, making them widely used in various fields.