Carbon nanotubes are a carbon based material with a one-dimensional tubular structure with six membered rings of carbon atoms. They have excellent thermal, mechanical, electrical, and optical properties, and are currently one of the materials with the highest thermal conductivity, conductivity, and weight reduction performance. Therefore, carbon nanotube materials are known as the 21st century super materials.
Although single carbon nanotubes have significant advantages in mechanical and electrical properties, the excellent properties of carbon nanotubes at the nanoscale cannot be directly utilized at the macro scale.
Therefore, how to assemble carbon nanotubes into macro scale continuous fibers and films in a certain way, and control the intrinsic characteristics of carbon nanotubes and their interfaces to make them possess high strength, high conductivity, and lightweight characteristics, has become a difficult and painful point in the industrialization of carbon nanotubes, and there are very few enterprises that can truly achieve industrialization.
Since its inception, SXTH Nanotechnology Corporation has been committed to the development of the preparation technology of carbon nanotube macroscopic materials (fibers, films and aerogels). Through the major improvement and upgrading of the floating catalyst chemical vapor deposition (FC-CVD) method, it has developed for the first time in China the technology of industrialized preparation of carbon nanotube films and fibers based on methane gaseous carbon sources, breaking through the technical bottleneck of continuous preparation of carbon nanotube films and fibers, It can achieve the production of carbon nanotube fibers, membranes, or strips of any length, increasing production efficiency by 5-10 times.
At the same time, corresponding post-processing can be carried out according to customer needs to meet different systems and application scenarios. After the use of methane gas carbon source, the preparation efficiency of carbon nanotube macroscopic bodies has significantly improved, and the cost has significantly decreased, reaching the international leading level of this technology.
In addition, SXTH uses original and independent intellectual property technology to realize the in-situ growth coating of copper powder by Graphene, which subverts the traditional mechanical mixing method. The prepared Graphene copper composite powder can play a synergistic role between copper and Graphene in electrical, thermal and mechanical aspects, and has a huge potential market in the fields of high-strength and high conductivity copper matrix composites, 3D printing of copper based efficient heat dissipation structures, and conductive pastes.
At present, SXTH has realized the theoretical verification and small batch preparation of continuous preparation technology of Graphene/copper composite powder, and has begun to develop pilot scale equipment with industrialization capability. This has also become another major "Graphene" business direction for SXTH to remove carbon nanotube macro materials.