Recently, the Ningbo Institute of Materials Technology and Engineering of the Chinese Academy of Sciences has made important progress in the research of key high-strength and high-modulus carbon fiber manufacturing technologies. High-strength and high-modulus carbon fibers with a tensile strength of 5.24 GPa and a tensile modulus of 593 GPa have been prepared to realize the key preparation of domestic M60J. Technical breakthroughs.
In January 2016, Ningbo Materials Co., Ltd. took the lead in domestically to achieve a major breakthrough in the domestic M55J preparation technology. In September of the same year, it conducted a preparation technology verification and obtained a high-strength high-modulus carbon fiber with a tensile strength of 4.15 GPa and a tensile modulus of 585 GPa. Further research will follow. Achieved continuous and stable production of domestic high-strength high-modulus carbon fiber M55J, fiber bulk performance within the batch dispersion coefficient< 5%. 随后, 宁波材料所针对国产高强高模碳纤维工艺分析, 结构研究, 性能优化开展了详细研究, 尤其是重点开展高温石墨化环境中碳纤维拉伸强度保留率研究工作, 近期成功制备拉伸强度5.24GPa, 拉伸模量593GPa的高强高模碳纤维, 与日本东丽M60J高强高模碳纤维 (拉伸强度3.92GPa, 拉伸模量588GPa) 相比, 继续保持了拉伸强度上的优势.
High-strength and high-modulus carbon fiber has many advantages such as high tensile modulus, small thermal expansion coefficient, dimensional stability, etc. It depends on its unique structure and performance advantages to become a key raw material for spacecraft, aerospace and other fields. In recent years, domestic high-strength high-modulus carbon fiber has developed rapidly. , Ningbo Institute of Materials, Beijing University of Chemical Technology, etc. successively broke through the domestically produced M55J high-strength high-modulus carbon fiber preparation technology, and some domestic companies also launched the M55J engineering technology breakthrough. The breakthrough of the key preparation technology of domestic high-strength high-modulus carbon fiber M60J made by Ningbo Materials will be strong. Promote domestic technology development in this field.
While carrying out the domestic series of high-strength and high-modulus carbon fiber technology breakthroughs and stable preparation, Ningbo Materials Institute has established a good cooperative relationship with domestic carbon fiber and upstream and downstream companies of composite materials, and developed domestic M55J grade carbon fiber prepreg and composite material properties. Evaluation work will be carried out, and component evaluation and verification will be carried out. The relevant research team will also conduct research on the stable preparation technology of domestic high-strength high-modulus carbon fiber M60J based on the evaluation of domestic M55J grade high-strength high-modulus carbon fiber applications, and the advantages of domestic carbon fiber. The enterprises cooperate closely and actively carry out cooperation between production, teaching and research to support the development of related tasks.
