Epoxy resins come in various types and are manufactured both locally and internationally. Some of the types include bisphenol A type epoxy resin, bisphenol S type epoxy resin, bisphenol F type epoxy resin, aliphatic epoxy resin, aliphatic epoxy resin (epoxidized polydiene, etc.), adipose-aliphatic epoxy resin, aromatic aliphatic epoxy resin, glycerol epoxy resin, AB adhesive, ethylene glycol epoxy resin, phenolic epoxy resin, amino epoxy resin, unsaturated epoxy resin, propylene Oleic acid epoxy resin, tripolyphosphate epoxy resin, dicyclopentadiene epoxy resin, flame retardant epoxy resin, organic epoxy resin, organic silicone epoxy resin and organic fluorine epoxy resin. The chemical structure categorizes them into glycidyl ether type, glycidyl vinegar type, glycidylamine type, linear aliphatic type and aliphatic cyclic type. The first three types are created through the combination of epichlorohydrin and polyols or polyphenols, polyacids, and polyamines that have active hydrogen components. The latter two are obtained from the peroxidation of olefin double bonds using organic peroxic acid. Bisphenol A type epoxy resin is the most widely utilized epoxy resin in the adhesive industry, accounting for more than 90% of the total output.
Epoxy resin adhesive is a widely used adhesive due to its excellent bonding properties. Originally known as "adhesive" and "strong adhesive," the first patent for epoxy resin glue dates back to 1938. However, it was not until the early 1990s that the molecular microstructure was understood, allowing for internal toughening within the molecular network. This breakthrough greatly improved the strength, toughness, heat resistance, and durability of epoxy resin glue, making it suitable for high-tech applications. As new high-performance epoxy resins, curing agents, and toughening agents continue to be developed, the future seems bright for a diverse range of high-performance and multi-functional epoxy resin adhesives with exceptional performance and versatility.
