The market share of multi-walled carbon nanotubes (MWCNT) needs to be improved. my country’s industry concentration is high

Carbon nanotubes can usually be divided into two categories: single-walled carbon nanotubes and multi-walled carbon nanotubes. Multi-walled carbon nanotubes (MWCNT) refer to carbon nanotubes composed of several layers of single-walled carbon nanotubes wrapped around each other. Multi-walled carbon nanotubes have the advantages of good flexibility, good chemical stability, high conductivity penetration threshold, and high hardness. They are widely used in coatings, rubber, plastics, inks, batteries and other fields.

The preparation methods of multi-walled carbon nanotubes include floating catalytic method, arc method and catalytic pyrolysis method. The floating catalytic method refers to using hydrocarbons as raw materials under high temperature conditions, adding organometallic compound catalysts, and producing finished products through processes such as decomposition and diffusion. The arc method has difficulties in production and high equipment requirements, and is not suitable for large-scale production. Production; the catalytic pyrolysis method can be subdivided into three types: flotation method, matrix method and spray method. It has the advantages of simple production process and low operating cost, and is the mainstream preparation method of multi-walled carbon nanotubes.

​​​​Single-walled carbon nanotubes (SWCNT) are made of single-layer graphene as the base material. They have advantages such as good mechanical properties and good mechanical properties. They are in high demand in many fields and are the mainstream products in the carbon nanotube market. Compared with single-walled carbon nanotubes, multi-walled carbon nanotubes have defects in mechanical properties and elasticity, and their market share is relatively low. In the future, with the advancement of technology, the quality of multi-walled carbon nanotubes is expected to improve, and its market space will be further expanded by then.

According to the “2023-2028 China Multi-Walled Carbon Nanotube (MWCNT) Industry Market In-depth Research and Development Prospects Forecast Report span>》shows that multi-walled carbon nanotubes are widely used in coatings, rubber, plastics, inks, batteries and other fields, with the battery field being the largest demand end. Multi-walled carbon nanotubes can be used as conductive agents for silicon-based negative electrodes of batteries, which can effectively improve the high-rate charge and discharge performance of batteries. With the accelerated development of energy storage, power vehicles, electronic and electrical industries, my country’s battery market demand continues to grow, which provides favorable conditions for the development of the multi-walled carbon nanotube industry.

The main players in the global multi-walled carbon nanotube market include Japan’s Toray Corporation (Toray), the United States’ Cabot Corporation (Cabot), South Korea’s LG Chemical Company, etc. In terms of the local market, the main manufacturers of multi-walled carbon nanotubes in my country include Dazhan Nano, Tiannai Technology, Jiyue Nano and Dow Technology. Tiannai Technology focuses on the R&D, production and sales of new materials such as graphene and carbon nanotubes. It is my country’s leading multi-wall carbon nanotube enterprise, occupying nearly 25% of the market share.

          Industry analysts said that multi-walled carbon nanotubes, as allotropes of carbon, have broad application prospects in many fields. At present, compared with single-walled carbon nanotubes, multi-walled carbon nanotubes still have shortcomings in performance and their market share is low. It is expected that in the future, with in-depth research and technological progress, my country’s market share of high-quality multi-walled carbon nanotubes will increase.