Manufacturing methods and processes of conductive carbon black

Conductive carbon black is a conductive material commonly used in the electronics and power industries that is characterized by high electrical conductivity and high carbon content. In the manufacturing process, two methods are usually used: physical vapor deposition and chemical vapor deposition.
The physical vapor deposition method deposits carbon gases such as methane and acetylene on the surface through high-temperature hot spots to form carbon black. The advantage of this method is that it can control the particle size and morphology of carbon black, so it has higher conductive properties. The disadvantage of this method is lower yield and higher production cost.
The chemical vapor deposition method is to deposit carbon black on the surface by reacting carbon gas with other chemicals such as hydrogen. The advantages of this method are high yield and low production cost. However, due to the presence of chemical reactions, carbon black has poor electrical conductivity.
Regardless of the method used, the process for making conductive carbon black includes the following steps:
Pretreatment: Preprocess raw materials, such as crushing, screening, mixing, etc.
Deposition: Deposition on a surface, such as physical vapor deposition or chemical vapor deposition.
Post-processing: The deposited carbon black is subjected to post-processing, such as heat treatment.