What's the reason for the aging of epoxy resin?
Aging and yellowing is the result of the interaction of all these factors. The general research on the aging of epoxy resin is mainly the study of thermal oxygen and the study of ultraviolet radiationFor the study of physical and mechanical properties of epoxy resin, aging research includes heat aging, hygrothermal aging, salt fog aging, ultraviolet light aging, freeze-thaw cycles, chemical media corrosion and so on
1, oxidation, sudden leakage of air, oxygen, ozone and other chemical oxidation of oxidation, resulting in the bond breaking2. Light and heat affect the rupture of epoxy resin under light irradiation or heat3, the role of chemical substances, other chemical substances, the occurrence of key breaking4, the influence of other factors
Bisphenol A epoxy resin, bisphenol F epoxy resin, the epoxy resin, aliphatic cycloaliphatic epoxy resin does not exist C-C bond, only modified epoxy acrylic resin etc. these special epoxy resin can exist C-C double bonds. Generally used are E44 E51, bisphenol A epoxy resin, epoxy the resin yellowing factors there are many reasons,
