Abstract: The infiltration performance of epoxy resin used for resin transfer molding (RTM) to fibers was studied. It indicated that after fibers was treated with acetone, the infiltration performance of RTM epoxy resin became improved. A chemo-rheological model based on the dual-Arrhenius equation was formulated, and it was predicted that the viscosity of RTM epoxy resin was below 800 mPa·s at temperatures between 35 and 75 ℃, and the hold time of low viscosity was more than 20 min, which was satisfied with RTM processing.

Key words: epoxy resin, infiltrating performance, resin transfer modeling, rheological model