The effects of polytetrafluoroethylene (PTFE) on the tensile and tribological properties of carbon fiber-reinforced poly(methyl methacrylate) (PMMA) composites were studied. Tribological tests were conducted on an Amsler friction and wear tester using a block-on-ring arrangement. It was observed that the PTFE played a main role in the tensile-resistant and wear-resistant properties of the PMMA composites. The tensile properties were ruled by the fiber-matrix adhesion. And the excellent tribological performance of the PTFE fillers improved the tribological properties of PMMA composites.
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