The maleated epoxy resin/epoxidized corn oil (MEPECO) and vinyl ester (VE) resin were blended using an overhead stirrer for 4 hours at ambient temperature; see Table for details. The sample blends were run three times into a 3-roll mill. Methyl ethyl ketone peroxide, the curing agent, and cobalt naphthalate, the accelerator, were both added at 1% of the constant volume of VE (300 mL) and sonicated for 1 h. The steel plate mold, 250 × 250 × 10 mm (L × W × H), was initially cleaned, Teflon coated, and then sprayed with a releasing agent to prevent the blend from sticking to it after removal. Coded as VE_MEPECO, the solution mixture was poured into the steel mold. Pre-curing was set at room temperature for 24 h and directly put into the curing oven composites at a set curing temperature of 80°C for 4 h, and post-curing was set at 120°C for 2 h. (Figure ).