▎ 摘　　要

The curing kinetics of a flame. retardant epoxy resin (1.5P-D-U-EMI) containing 9,10-dihydro-9-oxa-10-phosphaphenantrene-10-oxide (DOPO) with imidazole grafting graphene oxide (GO-IPDI-MZ) was investigated by differential scanning calorimetry. The non-isothermal autocatalysis curing mechanism of 1.5P-D-U-EMI was not changed by adding 1% of GO-IPDI-MZ. T-onset and T-p of the flame-retardant epoxy resin with 1 Phr of GO-IPDI-MZ (1.5P-D-GOM-1) were decreased compared with those of 1.5P-D-U-EMI, and the total curing heat Delta H of 1.5P-D-GOM-1 was higher than that of 1.5P-D-U-EMI. 1% of GO-IPDI-MZ plays a catalytic and co-curing action on the epoxy system. The phenomenon of diffusion control was observed at the later stage of isothermal curing, especially at low temperatures. The Kamal-Sourour model modified with diffusion expressed the observed reaction rate curves fairly well. The curing reaction became steady and uniform by introducing GO-IPDI-MZ.