Preparation and Properties of MWCNTs/CF Reinforced Epoxy Resin Composite Patch

Multi-walled carbon nano-tubes and carbon fiber reinforced epoxy resin (MWCNTs/CF/EP) composite patch was prepared by the route of hot-melt impregnation. The results of the mechanical properties shown that adding MWCNTs had made the tensile strength and interlaminar shear strength increased by 9.79% and 3.1%, separatively. It was detected using the ultrasonic non-destructive technique that the composite patch had a good interlaminar combination with no defects as obvious resin enrichment or insufficient gel content except for some slight stratification phenomenon in few parts. The high heat-resistance obtained by TG.