As a one-dimensional nanomaterial, carbon nanotubes are lightweight, with perfectly connected hexagonal structures and excellent mechanical, electrical, and chemical properties.

The characteristics of carbon nanotube materials

1、 Mechanical properties
（1） The highest specific strength: The covalent bond connecting carbon atoms in carbon nanotubes is the most stable chemical bond in nature. Nanocarbon nanotubes have extremely high tensile strength and elastic modulus. At the same time, the density of carbon nanotubes is only 1/6 of that of steel, which is currently the material with the highest specific strength that can be prepared.
（2） Strong flexibility: Carbon nanotubes have high strength but are not brittle. When bending or applying axial pressure on carbon nanotubes, even if the external force exceeds the Euler strength limit or bending strength, the nanotubes will not fracture, but will first undergo large angle bending. When the external force is released, the carbon nanotubes return to their original state.
2、 Electrical performance
（1） Good conductivity: The structure of carbon nanotubes is the same as the layered structure of graphite, and they have good conductivity. The resistance of carbon nanotubes is independent of their length and diameter, and electrons do not generate heat when passing through the nanotubes. The transmission of electrons in carbon nanotubes is like the transmission of light signals in optical fiber cables, with minimal energy loss, making it an excellent battery conductive agent.
（2） Excellent thermal conductivity: Carbon nanotubes have extremely high thermal conductivity, with a thermal conductivity twice that of diamond at room temperature, making them the best known thermal conductive material. In addition, the heat exchange performance of carbon nanotubes in the axial direction is high, while the heat exchange performance in the radial direction is low. Through appropriate orientation, carbon nanotubes can be synthesized into highly anisotropic heat conductive materials.
（3） Good hydrogen storage performance: Carbon nanotubes themselves have a high specific surface area and excellent hydrogen storage capacity after treatment.
（4） Superior lithium insertion characteristics: The hollow cavity of carbon nanotubes, the gaps between tubes, the gaps between layers in the tube wall, and various defects in the tube structure provide abundant storage space and transportation channels for lithium ions.
（5） Chemical stability: Carbon nanotubes have stable chemical properties, with acid and alkali resistance. Adding carbon nanotubes to polymer composite materials can improve the acid resistance and oxidation resistance of the material itself.

Application Case of A&E Nanocarbon Tube Materials

One of the most important characteristics of bicycle wheels is drop impact. A&E's development and application of bicycle wheel hub products can increase the drop impact by more than 15% by uniformly dispersing 0.05% of carbon nanotubes in the resin of composite materials. Meanwhile, carbon nanotubes, which only account for 0.2% of the total weight of the material, increase the shear strength and bending strength of the composite material by 30% and 9%, respectively.
In addition, by using single-walled carbon nanotube pre impregnated fabric technology, the original 14 layer pre impregnated fabric was changed to a 10 layer design, maintaining the same structural strength. On the basis of improving impact resistance, the material weight of bicycle wheels was also reduced from the original 760g to 600g.

Application of A&E Nanocarbon Tube Materials

A&E has strong R&D and innovation capabilities, and has been committed to the research and development of epoxy resins, carbon fiber prepregs, and carbon fiber products for high-end composite materials for a long time. It can provide customers with customized high-end composite material one-stop solutions.
Welcome domestic and foreign customers to inquire and visit for guidance!