Recently, Ningbo Materials has made important progress in key preparation technologies for domestic high-strength high-modulus carbon fiber. A high-strength and high-modulus carbon fiber with a tensile strength of 5.24 GPa and a tensile modulus of 593 GPa was prepared to achieve a breakthrough in the key preparation technology of domestic M60J.
In January 2016, Ningbo Materials took the lead to achieve a major breakthrough in the domestic M55J preparation technology. In September of the same year, the preparation technology was verified and a high-strength high-modulus carbon fiber with tensile strength of 4.15 GPa and tensile modulus of 585 GPa was obtained. Achieved the continuous and stable production of domestic high-strength high-modulus carbon fiber M55J, fiber bulk performance within the batch within the dispersion coefficient<5%。随后，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 in spacecraft, aerospace and other fields. In recent years, domestic high-strength high-modulus carbon fiber has developed rapidly. Ningbo Institute of Materials Science and Technology, Beijing University of Chemical Technology and other scientific research units have successively broken through domestically produced M55J high-strength high-modulus carbon fiber preparation technology. Some domestic companies are carrying out M55J engineering technology research, and the key preparation technology breakthrough of domestically produced M60J high-strength and high-mode carbon fiber from Ningbo Materials will effectively promote Domestic technological development in this field.
While carrying out the domestic series of high-strength and high-modulus carbon fiber technology breakthroughs and stabilizing preparation, the research team has been adhering to the work philosophy of pioneering, pioneering and innovative, and win-win cooperation. It has established a good cooperative relationship with upstream and downstream companies of domestic carbon fiber and composite materials. Preparation of domestic M55J grade carbon fiber prepreg and performance evaluation of composite materials, and will further develop component evaluation and verification.
Based on the evaluation of domestic M55J high-strength high-modulus and high-modulus carbon fiber applications, the research team will further develop the research on the stable preparation technology of domestic high-strength high-modulus carbon fiber M60J, and work closely with domestic carbon fiber-dominant enterprises to actively carry out cooperation between production, education and research, and support related tasks. development of.
