Abstract:Carbon nanotube film(CNTF) / carbon fiber reinforced resin composite were fabricated via autoclave
process with two kinds of carbon nanotube film interlayer toughening respectively. Effect of the molding process, ori鄄
entation and planar density of the carbon nanotube film on the mechanical properties and interlaminar toughness of
composite were investigated. The result reveals that compared to the vertical direction, when the CNTF were layed
paralleling to the carbon fiber, the compression strength,90毅flexural strength and interlaminar shear strength of com鄄
posite were better. The toughening effect of the composite enhanced as the planar density of the carbon nanotube film
decrease. The interlaminar fracture toughness of composite interlayer toughened by carbon nanotube film sprayed is
more outstanding evidently than carbon nanotube film drawed. When the planar density of the carbon nanotube ran鄄
dom film was 0. 75 g/ m2, GIC and GIIC of composite were optimum, increased by 21% and 42%, respectively,com鄄
pared to composite before toughening.
