Synthesis, Characterization and Glass Reinforcement of DimethyIolurea-3-AminoPhenol-Epoxy Resin Curing Systems

摘要

N,N'-Dimethylolurea (DMU) was prepared and condensed with 3-aminophenol (AP) in the presence of alcoholic alkali catalyst at varying mole ratios of DMU: AP. The resultant dimethylolurea-3-aminophenol (DMUAP) resins were characterized. DMUAP-epoxy curing systems have been prepared by mixing DMUAP and epoxy resin (DGEBA) in different proportions. The curing study of DMUAP-epoxy systems was monitored on DSC and kinetic parameters were evaluated. Based on DSC data, glass-reinforced composites of DMUAP-epoxy systems have been laminated and characterized. The unreinforced cured material of DMUAP-epoxy systems were analyzed by thermogravimetric analysis (TGA).