The effects of the integration of continuous sheets of randomly oriented multi-walled carbon nanotubes on the low velocity impact behavior of cross-ply carbon/epoxy laminates have been investigated. Three different energy levels were used, namely 5 J, 10 J, and 20 J and significant reductions in delaminated area in the range 11%–39% compared to the baseline laminates were achieved by incorporating interleaves at each 0/90 interface. This resulted in a better flexural damage tolerance of modified laminates. The combination of ultrasonic C-scans, profilometry, and scanning electron microscopy showed that interlaminar crossing between CNT sheets and carbon fibers occurred in modified laminates and that nanotube pull-out, bridging and improved fiber/matrix adhesion are the mechanisms responsible for the enhanced impact performance.

研究了无规取向的多壁碳纳米管连续片材的集成对交叉层碳/环氧树脂层压板低速冲击行为的影响。使用了三种不同的能级，分别为5 J，10 J和20 J，并且通过在每个0/90界面处加入交错结构，与基准层压板相比，分层面积显着减少了11％–39％。这导致改性层压材料具有更好的挠曲破坏耐受性。超声C扫描，轮廓测定法和扫描电子显微镜的结合表明，在改性层压板中发生CNT片和碳纤维之间的层间交叉，并且纳米管的拉出，桥接和改善的纤维/基体粘合力是造成增强冲击力的机制。表现。