What is the progress of research on carbon rods reinforced with nanomaterials (such as carbon nanotubes)? Can it improve conductivity and wear resistance?

What is the progress of research on carbon rods reinforced with nanomaterials (such as carbon nanotubes)? Can it improve conductivity and wear resistance?

Research on nanomaterial-enhanced carbon rods is making continuous progress. Carbon nanotubes have a significant effect on improving the conductivity and wear resistance of carbon rods. The following is a detailed introduction:

Research progress

Optimization of preparation process: At present, the preparation technology of carbon nanotubes, such as chemical vapor deposition and arc discharge, is constantly developing, which can achieve large-scale and high-quality carbon nanotube production. At the same time, there have been great improvements in the process of combining carbon nanotubes with carbon rod matrix, such as solution mixing and in-situ growth, so that carbon nanotubes can be more evenly dispersed in carbon rods to improve the reinforcement effect.

In-depth performance research: Through experiments and theoretical simulations, researchers have deeply explored the mechanical, electrical, thermal and other properties of carbon nanotube-enhanced carbon rods. It is found that carbon nanotubes can not only improve the strength and hardness of carbon rods, but also significantly improve their electrical conductivity and thermal conductivity.

Improvement of conductivity

Forming an efficient conductive network: Carbon nanotubes have excellent electrical properties and are good conductors themselves. In carbon rods, carbon nanotubes can connect to each other to form a three-dimensional conductive network, providing a fast channel for electron transmission, greatly reducing the resistance of carbon rods, thereby improving their conductivity. For example, in some experiments, the conductivity of carbon rods with a small amount of carbon nanotubes added increased several times compared to when they were not added.

Enhanced electron transmission capacity: Carbon nanotubes have a large aspect ratio and can better contact with other conductive particles in carbon rods, enhancing the ability of electrons to transmit between particles. At the same time, the presence of carbon nanotubes can also reduce electron scattering, making electron transmission smoother, and further improving the conductivity of carbon rods.

Improvement of wear resistance

Improved mechanical properties: Carbon nanotubes have extremely high strength and toughness, with a Young's modulus of nearly 6 times that of steel and a tensile strength of 100 times that of steel. Adding it to carbon rods can effectively improve the overall mechanical properties of carbon rods, making them less likely to wear, break, etc. during friction.

Enhanced surface hardness: Carbon nanotubes can form a uniform protective film on the surface of carbon rods, increasing the hardness and wear resistance of the carbon rod surface. When the carbon rod comes into contact with other objects, this protective film can withstand a certain friction force, reduce the wear of the carbon rod matrix, and extend the service life of the carbon rod.