Microwave absorption properties of GO nanosheets-BaFe 12 O 19 –NiO nanocomposites based on epoxy resin: optimization using Taguchi methodology

In this study, a new nanocomposite based on epoxy resin content of fillers nanosheets graphene oxide, nickel oxide nanoparticle and barium hexaferrite nanoparticle have been successfully synthesized and their electromagnetic wave absorption properties in 8–12 GHz were evaluated. To save costs and time the Taguchi method was applied to design of experiments. The wt% of fillers, the ratio of nickel oxide to graphene oxide, the sum wt% of nickel oxide and graphene oxide to barium hexaferrite and sample thickness with three levels were studied. The impact of each parameter in the nanocomposite coating was evaluated by Qualitek-4 software. Data analysis indicated that wt% of all fillers, the ratio of NiO to GO, NiO and GO to BaFe12O19 ratio and sample thickness, 19.648, 36.484, 31.995 and 11.823% were contributed in absorption, respectively. The nanocomposite was synthesized with optimal condition had a reflection loss less than − 20 dB in 8–12 GHz frequency range.