Further development of carbon fiber science and technology in Jilin Chemical Fiber Group

Known as "black gold, " carbon fiber, as a strategic defense material, has been controlled by the United States, Japan and other developed countries in its production technology, and China has imposed a technical blockade and product embargo, a serious threat to the country's strategic security.

In order to change the passive situation and develop China's own carbon fiber, in 2006, Jilin Chemical Fiber Group decided to research and develop domestic carbon fiber, research on large-scale production of carbon fiber precursor with Changchun University of Technology. Through more than 70 technical improvements, equipment modification and hundreds of repeated tests, the first batch of carbon fiber precursor was produced in April 2007. After carbonization testing, the carbon fiber index was close to the international leading T300 level.

"white + black" mode of work to make significant achievements in carbon fiber R&D

In order to develop high-quality carbon fiber precursor as soon as possible, the R & D team reviewed and researched a large number of domestic and foreign literatures and materials on carbon fiber production, and attached great importance to every link in R & D and Technological Innovation, coordination and prevention of every possible situation in the production process, the start of the "36524" "white + black" mode of work, team members every day in the laboratory and production site, every night until late at night is common, few holidays, little time to spend with family, sick children and the elderly, they have no time to take care of their loved ones, and when their loved ones have surgery, they just go to the hospital to fulfill their signing duties, they are devoting all their efforts to the research and development of carbon fiber precursor, and only want to shorten the gap between China's carbon fiber industry and developed countries as soon as possible, and change the passive situation of China's carbon fiber materials being controlled by people, promoting China's voice in the development of international carbon fiber materials.

In October 2007, on the basis of a systematic summary of the problems existing in the previous trial production, the polymerization, liquid and spinning production lines were once again upgraded and optimized. After more than three months of debugging, the invention solves a series of technical bottlenecks, such as the instability of polymer intrinsic viscosity, high temperature aging of the original solution, many air bubbles, high spinning fineness, low strength, and many wool filaments. January 2008 production of 500 kg carbon fiber precursor after the downstream carbonization test, the quality index exceeds the international first-class T300 level, the news out, the price of imported carbon fiber then fell 40% ./n/nAfter more than a year of research and development, the research and Development Team has fully mastered the production technology of DMAC wet two-step carbon fiber precursor and PAN-based carbon fiber precursor polymer by Ternary aqueous suspension polymerization, and obtained two national invention patents, the development process is characterized by short process, stable quality, high output, is the first domestic. The research and development of home-made carbon fiber not only strengthened the team members'strong dedication and dedication, but also enhanced the team members'ability to work together and create innovations, the large-scale production technology of domestic carbon fiber precursor has achieved a breakthrough.

Production costs were greatly reduced because of the improvement of the product quality

It is understood that Jilin Chemical Fiber Group currently has 1K, 3K, 6K, 12K, 24K carbon fiber precursor production capacity, product quality stability in the T400 level, individual products reached the T700 level. The R & D team has successfully developed 12S, 12KK, T700 grade carbon fiber precursor and 48K low-cost and large-bundle precursor, which has improved the product quality and greatly reduced the production cost, so that the production capacity of precursor reaches 15,000 tons per year, carbon fiber precursor production capacity will reach 50,000 tons per year by 2020./n/nSince the formation of the team, from small to large, from weak to strong, now there are 24 members, of which are senior 2, deputy senior 13, Jilin Province chief technician 1, a doctoral student 1, Master 5. The team has a good talent and age structure, and identified the "low-cost, large tow, high-quality, universal" carbon fiber precursor for the main research and Development Direction./n/nIn an important speech delivered at the annual meeting of the academicians of the two academies, General Secretary Xi Jinping repeatedly referred to "innovation" . Over the years, the research and Development Innovation Team of carbon fiber science and technology of Jilin Chemical Fiber Group has successively completed the key research and development projects of "development and industrialization of polyacrylonitrile-based carbon fiber precursor with an annual output of 5,000 tons" , "research and development of key technologies for the production of T700 grade polyacrylonitrile-based carbon fiber precursor" , "low cost of polyacrylonitrile-based 48K, industrialization of large tow carbon fiber precursor" and other provincial and municipal research and development projects, jilin Province won the first prize for scientific and Technological Progress 1, China Textile Industry Federation Scientific and Technological Progress Award 1, obtained national invention patents 5.