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A novel chemical method was developed to graft carbon nanotubes (CNTs) onto carbon fiber (CF) by direct covalent bonding to form a CNT–CF hierarchical reinforcing structure. The grafting via ester linkage (formed at a low temperature of 70 °C without using any contaminating catalyst or coupling agent) was evidenced by SEM, FTIR, RAMAN, XPS and XRD spectroscopy. The CNT failure stress obtained from...
The mechanical properties of carbon nanotubes (CNTs) reinforced composites would mainly depend on the pullout behavior of carbon nanotubes which are randomly distributed in matrix. In this paper, an analytical pullout model is developed for an inclined CNT embedded into matrix to study the mechanisms for improving mechanical properties of inclined CNTs reinforced composites. In this model, by employing...
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