The "Key Technology and Application of Dry-jet Wet-spinning of 1,000-ton High-strength / 100-ton Medium-mode Carbon Fiber Industrialization" project led by Zhongfu Shenying Carbon Fiber Co., Ltd. won the first prize of 2017 National Science and Technology Progress Award.
Org: JSZF Carbon Fiber Technology Group
On January 8, 2018, the 2017 National Science and Technology Awards Conference was grandly held in the Great Hall of the People.
The National Science and Technology Awards are reviewed once a year. According to the "Proposal on Deepening the Reform of the Science and Technology Award System" released in May 2017, the total of three major awards does not exceed 300 each year. The total number of national science and technology awards in 2017 declined steadily, of which 35 national science awards, 2 first prizes, and 33 second prizes; 66 national technology invention awards, 4 first prizes, and 2 second prizes 62 items; 170 national science and technology progress awards, 3 special awards, 21 first prizes (including innovation teams), and 146 second prizes. Academician Wang Zeshan (age 83) from Nanjing University of Science and Technology, and Hou Yunde (age 89) from the National Institute for Viral Prevention and Control of the Chinese Center for Disease Control and Prevention won the National Science and Technology Award.
JSZF harvests the heaviest reward in the field of carbon fiber
In 2017, three achievements in the textile industry won the first prize, second prize in scientific and technological progress, and second prize in technological invention. Among them, the chemical fiber industry “Key Technology and Application of Dry-jet Wet Spinning of 1,000-ton High-strength / 100-ton Medium-mode Carbon Fiber Industrialization” won the National Science and Technology Progress Award. This is the heaviest reward for carbon fiber in many years.
JSZF has been tackling key problems for many years, breaking through the key technologies of dry-jet wet spinning of 1,000-ton high-strength / 100-ton medium-mold carbon fibers, realizing the bulk supply of domestic carbon fibers, and filling the domestic high-performance carbon fiber production technology represented by dry-jet wet spinning. The gap in technology has broken the long-term monopoly of foreign high-performance carbon fiber companies in the Chinese market, and the world's most advanced technology has been used to dry-jet wet-spin the "China carbon fiber". This will improve China's military high-performance carbon fiber independent support capability and support the country. The development of strategic emerging industries has important strategic significance.
The dry-jet wet spinning process is considered to be the mainstream process for carbon fiber production in the future, but it is also recognized as a hard-to-break spinning technology in the carbon fiber industry. At present, only some Japanese companies in the world have mastered this process. The breakthrough of this key technology enables the spinning speed to reach more than 400m / min, and the spinning speed is five times that of traditional wet spinning. At the same time, the rapid pre-oxidation technology of dry-jet wet spinning precursors has also been developed, which effectively shortens the pre-oxidation. Time has greatly improved production efficiency. After breakthroughs in key technologies of dry-jet wet spinning, we developed a set of technologies for homogeneous polymerization system, efficient environmental protection, single-stabilized dry-jet wet spinning, and energy-saving pre-oxidation. In the end, China's first 1,000-ton carbon fiber production line using dry-jet wet spinning Formally put into production, the technology has reached the domestic leading level, and the performance of the prepared carbon fiber products is comparable to similar international products. Today, with the continuous innovation and improvement of technology, this production line can produce nearly 5,000 tons of raw silk and 2,000 tons of carbon silk every year. The product has realized industrialization and mass supply to the market, which has greatly promoted the development of the domestic carbon fiber composite material industry.
Development history of JSZF carbon fiber
Carbon fiber is widely used in military and civilian industries such as aerospace, military equipment, transportation, wind power generation, pressure vessels, etc. due to its excellent characteristics such as high strength and modulus, low density, high temperature resistance, corrosion resistance, and good electrical conductivity. Carbon fiber is a key strategic material that is urgently needed for national security and weaponry. It is also a sensitive material for long-term foreign technology blockades and product monopolies. "Although China's carbon fiber research has been for more than 40 years, it has not been able to achieve industrialization, and a few countries such as Japan and the United States that have mastered this technology have long implemented technology blockades and monopolies. Construction and national defense development … "Hearing the heartbreaking introduction of the industry insiders, Zhang Guoliang, with a simple patriotic feeling and a strong military complex, was determined to" complete the industrialization of carbon fiber. " "This is the original intention of Zhang Guoliang, chairman of Zhongfu Shenying Carbon Fiber Co., Ltd., to devote himself to the carbon fiber industrialization.
In 2005, JSZF participated in the research and development of domestic carbon fiber, and put forward "winning glory for the motherland and fighting for the nation" and assumed national responsibility.
In 2008, JSZF began to carry out research on dry-jet wet spinning carbon fiber engineering projects and carried out feasibility tests.
In 2012, after several consecutive years of research, continuous and stable production of dry-jet wet-spinning was achieved. Compared with wet-spun carbon fibers, carbon fibers produced by dry-jet wet spinning have significantly improved mechanical properties and production. Significantly improved efficiency and significantly reduced energy consumption.
In 2013, the capacity of dry-jet wet spinning carbon fiber precursors was 5,000 tons, and the quality of carbon fiber products reached the national standard GQ45 level. After a series of process and equipment improvements, the performance and quality of SYT49 carbon fiber products were greatly improved, and mechanical properties reached the level of imported T700S carbon fibers. The products have begun to enter many domestic fields, achieving breakthroughs in the domestic application of domestic carbon fiber.
In July 2015, "the key technology and industrialization of high-performance, high-strength and high-strength model dry-jet wet-spun carbon fibers for 1,000-tonne grades" passed the national technical achievement appraisal, and the technology reached the domestic leading and international advanced level. Sun Jinliang, an academician of the Chinese Academy of Engineering, said that the carbon fiber production line based on the dry-jet wet spinning process built by JSZF has reached the leading level in domestic research and development, and some performance indicators exceed the level of similar foreign products, which can completely replace imports.
In May 2016, China's first 1,000-tonne T800 yarn was put into operation. This is the result of the "Key-tony Dry-jet Wet Spinning High-performance Carbon Fiber Industrialization Key Technology and Independent Equipment" project completed by JSZF carbon fiber. The project independently developed dry-jet wet spinning carbon fiber technology, designed and developed key production equipment, and broke long-term foreign technology monopoly. JSZF became the third company in the world to realize the industrialization of high-performance dry-jet wet spinning carbon fiber.
On November 23, 2016, JSZF's project "Key Technology and Independent Equipment for High-Performance Dry-Spin Wet-Spinning High-Performance Carbon Fiber Industrialization" won the first prize of the 2016 China Textile Industry Federation by the "Light of Textile". Speak at the commendation conference as a representative of the science and technology award. He mentioned that dry-jet wet spinning is currently recognized as the most advanced technology for producing high-performance carbon fibers. Based on technological breakthroughs, T700 grade and other products have achieved industrialization and mass supply to the market, which has greatly promoted the domestic carbon fiber composite materials industry. development of. In the field of national defense and military industry, JSZF has undertaken many key tasks of the National Defense Science and Industry Bureau. At present, T700 and T800 carbon fiber independently developed by JSZF have the ability to provide stable and continuous supply for China's strategic weapons and equipment and other military industries. After 11 years of persistence and unremitting efforts, Zhongfu Shenying has achieved profitability for the first time this year. This is the first time in the domestic civil market, marking that domestic carbon fiber has begun to enter a healthy development stage.
In August 2018, JSZF achieved T1000 and T1100 carbon fiber technology breakthroughs, providing support to meet the demand for high-end carbon fiber materials in China.
So far, at least 3 carbon fiber companies in China have achieved breakthroughs in T1100 high-performance carbon fiber technology and are preparing for commercial growth …
Up to now, the total investment of JSZF is 2 billion yuan, the annual production capacity of carbon fiber has reached 6,000 tons, and the product quality is at the international advanced level. The domestic fiber market share has reached 60% for many years. T700 and T800 grade carbon fiber products are mainly used in aerospace, carbon core cables, building reinforcement, pressure vessels, sporting goods, wind power blades, automobiles and other fields.
For the entire production of carbon fiber, from the front to the back, there are more than 3,000 process points controlled in the middle, and the parameters of which process point have changed, it is difficult to guarantee the quality of carbon fiber. To this end, Zhongfu Shenying has conquered the carbon fiber production dope preparation technology, equipment production technology, PAN fiber rapid homogeneous pre-oxidation, carbonization integration technology and built a dry-jet wet spinning high-strength / 100-ton medium-strength dry-wet spinning with independent ownership. The industrialized production system of carbon fiber has built the first complete set of dry-jet wet-spun carbon fiber production equipment with completely independent property rights.
Up to now, "Key Technology and Application of Dry-Blow Wet Spinning of 1,000-ton High-strength / 100-ton Medium-mode Carbon Fiber Industrialization" has been granted 17 patents, including 13 invention patents, 41 papers published, and T700 and T800 carbon fiber products. Has been applied to aerospace, carbon core cables and other fields.