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近日,由北京化工大学承担的北京市科委新材料专项课题“M40J高模高强炭纤维国产化制备技术研发”通过专家验收。M40J高模高强炭纤维是支撑航天技术发展的重要结构材料。该课题突破了国产M40J级高模高强炭纤维石墨微晶叠层厚度的调控、原丝牵伸匹配和预氧化环状结构含量控制等关键技术,形成了原丝和预氧化炭化石墨化的完整制备工艺,能满足卫星结构用炭纤维的基础指标要求。在此基础上,课题组形成了百千克级/年国产M40J级炭纤维的小批
Recently, the Beijing Municipal Science and Technology Commission undertaken by the Beijing Municipal Science and Technology Commission new materials special topic “M40J high mode high strength carbon fiber homemade technology research and development ” acceptance by the experts. M40J high modulus high strength carbon fiber is an important structural material supporting the development of aerospace technology. This project has broken through the key technologies such as the control of the thickness of domestic M40J high modulus and high strength carbon fiber graphite microcrystalline laminates, the drafting match of the raw silk and the control of the content of the pre-oxidized cyclic structure, forming the intact filament and preoxidized carbonized graphitization Preparation process, to meet the satellite structure with the basic requirements of carbon fiber. On this basis, the research group formed a small batch of 100kg grade / year made M40J grade carbon fiber