Research on the smart behavior of MCNT grafted CF/cement-based composites: Fullerenes, Nanotubes and Carbon Nanostructures: Vol 0, No 0

Summary

To resolve the disadvantages of weak bonding between the carbon fiber (CF) and the cement matrix, in addition to the poor dispersion efficiency of multi-walled carbon nanotubes (MCNT) in cement paste, hydrothermal synthesis and chemical grafting strategies have been mixed to graft MCNT on the floor of CF. Scanning electron microscope (SEM) and power dispersive spectrometer (EDS) have been coupled used to guage the grafting effectivity. 4-electrode technique and electrochemical impedance spectroscopy (EIS) have been utilized to evaluate property of MCNT grafted CF/cement-based composites. The good habits of MCNT grafted CF/cement-based composites have been characterised underneath monotonic and cyclic loading. Outcomes confirmed that the hydrothermal synthesis technique can successfully graft MCNT on the floor of CF, and the grafting ratio as indicated by nitrogen ingredient was 6.78%. The conductivity of MCNT grafted CF/cement-based composites was far superior to that of untreated CF/cement-based composites. Additionally, the composite with the addition of MCNT grafted CF was extra delicate to the cyclic stress. Due to this fact, the stress delicate property of MCNT grafted CF/cement-based composites was considerably improved, in comparison with its untreated counterpart.

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