Uses of carbon nanotubes.

1, conductive: carbon nanotubes have a one-dimensional hollow tubular structure, the walls of which are surrounded by single-layer or multi-layer graphene sheets, with nanometer diameter and micron length, and a huge aspect ratio, whose properties can change due to the different ways of curling graphene sheets, reflecting metallic or semiconductor properties. In terms of electrical conductivity, carbon nanotubes can be metallic or semiconducting, and even in different parts of the same carbon meter tube, due to different structures, they can exhibit different electrical conductivity. Some research shows that the current carrying capacity of carbon nanotubes is a thousand times that of copper wires.
2, super tensile: carbon nanotubes have superior mechanical properties: tensile strength of 50 to 200 GPa, equivalent to 100 times that of steel, but only one-sixth of the specific gravity of steel, thus called "super fiber"; hardness and diamond equivalent, but more flexible, stretchable, its maximum tensile rate is higher than any metal; it also has very good It is considered to be the ultimate form of fiber and reinforced phase with maximum strength-to-weight ratio.
3, thermal conductivity: carbon nanotubes have good thermal conductivity, axial thermal conductivity is 2000~3000W/mK, about 10 times that of copper and 3 times that of diamond.
4, adsorption: carbon nanotubes have a large specific surface area, strong adsorption performance; also has good electromagnetic wave absorption and other properties.