The unique structure of carbon nanotubes determines that it has many special physical and chemical properties. The C = C covalent bonds that make up carbon nanotubes are the most stable chemical bonds in nature, so carbon nanotubes have very excellent mechanical properties. Theoretical calculations show that carbon nanotubes have extremely high strength and great toughness. The theoretical value estimates that Young's modulus can reach 5TPa.

The excellent conductivity of carbon nanotubes makes it suitable for anti-static coatings, conductive polymers, rubbers, and conductive plastic master batches. The tensile strength of carbon nanotubes in the axial direction is 100 times that of steel, while the weight is only 1 / the weight of steel. 6. It can be used in polymer matrix to form reinforced composite materials and so on.

The unique nano hollow structure of carbon nanotubes, which has a suitable pore size distribution, unique and stable structure and morphology, especially surface properties, can be modified by different methods according to people's needs, making it suitable as a new catalyst carrier.