The carbon fiber industry chain can be divided into upstream carbon fiber production, midstream carbon fiber veil production, and downstream demand for various military and civilian products. The raw material acrylonitrile is polymerized and spun to obtain the original filament, and then the carbon fiber is prepared through the steps of pre-oxidation, carbonization, and surface treatment. The carbon fiber and the matrix material are combined to obtain the intermediate material, and the required carbon fiber veil is finally obtained through a series of treatments. Then downstream military industrial enterprises will apply the carbon fiber veil produced for matching, sub-system or final assembly.
The downstream added value of the carbon fiber industry chain has increased significantly. From raw silk to carbon fiber, the price has more than doubled from 40 yuan/kg to 180 yuan/kg, the intermediate material prepreg reaches 600 yuan/kg, and its downstream military application composite materials are as high as 8,000 yuan/kg, showing the carbon fiber industry chain The downstream added value has increased rapidly, and the gradual development to the downstream of the industrial chain is also the goal of many carbon fiber companies.
