From Figure , increasing the polymer mass fraction has very little to no effect on the interaction energy of the benzoxazine system. At 34% polymer mass fraction the interaction energy trend converges and remains approximately the same for higher mass fractions. This observation can be explained by Error! Reference source not found., where the lowest mass fraction model displayed perfect separation of the two flCNT layers. Hence, the interface was completely populated by the polymer atoms for all the mass fractions.