Figure reveals the friction force trend for the polymerized and unpolymerized models of all three polymer systems, as well as the friction force associated with flCNTs with no polymer (commensurate and incommensurate). The incommensurate flCNT-flCNT friction case is considered to accurately represent the actual stacking configuration in flCNT stacks . As reported previously, the presence of a polymer layer results in an increase of two orders of magnitude in the friction force exhibited by the incommensurate flCNT-flCNT . Models with polymer mass fractions of 64% in epoxy, 66% in BMI, and 56% in benzoxazine are used for this comparison. At low velocities, the three polymers (both monomeric and polymeric forms) display a close performance because of the scarcity of polymer atoms at the interface. Benzoxazine displays superior resistance when simulating both low and high velocities.