Recently, the Chinese Academy of Sciences has made important progress in the research on the key preparation technology of domestic high-strength high-mode carbon fiber. The high-strength high-mode carbon fiber with tensile strength of 5.24GPa and tensile modulus of 593GPa was prepared, which achieved a breakthrough in the key preparation technology of domestic M60J.

In January 2016, the Chinese Academy of Sciences took the lead in realizing a major breakthrough in the domestic M55J preparation technology. In September of the same year, the preparation technology was verified, and high-strength high-mode carbon fibers with a tensile strength of 4.15 GPa and a tensile modulus of 585 GPa were obtained. The domestic M55J high-strength and high-mode carbon fiber has been continuously and stably produced, and the dispersion coefficient of the fiber main body batch is <5%. Subsequently, the Chinese Academy of Sciences carried out detailed research on the process analysis, structural research and performance optimization of domestic high-strength high-mode carbon fiber, especially focusing on the research on the retention rate of carbon fiber tensile strength in high-temperature graphitization environment. Recently, the tensile strength was 5.24GPa. The high-strength high-mode carbon fiber with a tensile modulus of 593 GPa continues to maintain the tensile strength advantage compared with the Toray M60J high-strength high-mold carbon fiber (tensile strength 3.92 GPa, tensile modulus 588 GPa).

High-strength and high-mode carbon fiber has the advantages of high tensile modulus, small thermal expansion coefficient and dimensional stability. It has become a key raw material in the field of aerospace vehicles and aerospace, relying on its unique structure and performance advantages. In recent years, the domestic high-strength and high-modulus carbon fiber has developed rapidly, and the breakthrough of the key preparation technology of high-strength and high-modulus carbon fiber will effectively promote the development of technology in this field in China.

While carrying out breakthroughs and stable preparation of domestically produced series of high-strength and high-modulus carbon fiber technologies, the Chinese Academy of Sciences has established a good cooperative relationship with domestic carbon fiber and its composite materials upstream and downstream enterprises, and carried out domestic M55J grade carbon fiber prepreg preparation and composite material properties. Evaluation work, and will carry out work such as component evaluation and verification. The relevant research team will also carry out research on the domestic M60J high-strength and high-mode carbon fiber stable preparation technology based on the domestic M55J high-strength and high-mode carbon fiber application evaluation work, and cooperate closely with the domestic carbon fiber advantage enterprises to actively carry out the cooperation of industry, university and research to support related tasks. development of.

Yancheng Xiangsheng carbon fiber Technology Co., Ltd. integrates scientific research, development, production and sales. It is committed to researching the diversity and functionality of special fibers such as carbon fiber, aramid fiber and high modulus PE. Now it is China Carbon Material Industry Association. Member unit, member of China Friction and Sealing Materials Association.