Effect of MWCNTs-GO hybrids on tribological performance of hybrid PTFE/Nomex fabric/phenolic composite

Filler reinforcing is an effective way of improving the tribological performance of fabric composites. However, the interface stability between fillers and the polymer matrix is critical for filler reinforced composites. To address this problem, hybrids of MWCNTs and graphene oxide (GO) are developed to improve the mechanical and tribological performances of hybrid PTFE/Nomex fabric/phenolic composite. Pin-on-disk wear tests show that the wear rates of hybrid fillers filled fabric/phenolic composites are significantly reduced, when hybrid filler of 1 wt% MWCNTs and 2 wt% GO is employed. We also investigated the effect of filler content on the mechanical and tribological property of the fabric composites. The wear mechanisms of the composites are discussed based on the characterizations.