Carbon Nanotubes in Composites

Carbon nanotubes are cylindrical structures made of rolled graphene sheets, typically just a few nanometers in diameter, that exhibit an unusual combination of extraordinary mechanical strength, electrical conductivity, and chemical tunability. When embedded into polymer, ceramic, or metal matrices, they can dramatically alter the host material's properties, making composites that are lighter and stronger than conventional alternatives or capable of conducting electricity in ways the base material cannot. A central challenge is controlling how nanotubes disperse within a matrix and how they bond to surrounding material, which is where functionalization—chemically modifying the nanotube surface—becomes critical, since poor interfacial adhesion often limits real-world performance gains. Active research directions include developing scalable, defect-controlled synthesis routes and understanding precisely how nanotube geometry, chirality, and surface chemistry together determine the properties that emerge in the final composite.

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Keywords

NanotubesCarbonCompositesPropertiesFunctionalizationElectronics