Abstract
Epoxidation for thermal decomposition liquids of phenolic resin wastes was investigated. The thermal decomposition liquids were prepared at 600°C for 2 hours under the nitrogen gas and low distillates were removed. Epoxy products were prepared from those liquids, whose main components were a phenol and methylphenol derivatives, by epoxidation. As the epoxy products were monofunctional compounds, physical properties for cured the epoxy products / diglycidyl ether of bisphenol A (DGEBA) blend resins were examined. Tg of the cured resins for the blend resins decreased with an increase in the amount of the epoxy products. And, the cured resins for the blend resins (1 : 1 weight ratio) had a larger peel strength than that for the cured DGEBA resins.
