High performance fiber: support the "national treasure" and write the legend of textile "from heaven to earth"

At the 2022 Beijing Winter Olympics, T800 grade high-strength carbon fiber composite, combined with aerospace carbon fiber composite molding process, achieved a breakthrough in China's Winter Olympics double snowmobile from 0 to 1; 3D printing customized carbon fiber helmet fits the athlete's face, ensuring the safety and comfort of athletes in the competition; The "Feiyang" torch shell is made of high temperature resistant carbon fiber materials, which solves the application bottleneck of carbon fiber composites under extreme conditions, and realizes the normal use of the torch shell in the hydrogen combustion environment above 800 ℃. On C919 domestic large aircraft, 15% of the fuselage is made of resin based carbon fiber materials. For the first time, polysulfone fiber is used in the cabin to make chair covers and door curtains, so that the large aircraft can be "slimmed down" again, with less fuel consumption, lower cost and reduced carbon dioxide emissions. The navigation mark, which provides safety information for various water activities, adopts new carbon fiber, which has long service life, waterproof and moisture-proof, is not easy to deform, and is not afraid of seawater erosion, making the navigation mark more "built". In recent years, high-performance fibers have helped advanced manufacturing with the momentum of "kuiran", reflecting outstanding value in extreme application fields such as safety protection, wind turbine blades, pressure vessels, aerospace, etc., supporting the "national weight", and writing the legend of textile "from heaven to earth". In recent years, Chinese fiber trends have successively introduced ultra-high strength carbon fiber, medium modulus and high strength carbon fiber prepreg, high strength and high modulus carbon fiber, carbon fiber for pressure vessels, dyeable polyimide fiber, low-cost large tow PAN based carbon fiber, ultra-high molecular weight polyethylene fiber, high elongation meta aramid fiber, micro nano Para aramid fiber, etc., which have played an indispensable role in various application fields. 01 High performance fibers are fruitful During the "13th five year plan" period, China's high-performance fiber new material technology has been steadily improved to continuously meet the development needs of aerospace, national defense and military industry, environmental protection, medical and health care and other fields. The technology of dry jet wet spinning and wet spinning of carbon fiber has been gradually improved, the production efficiency has been further improved, and the variety of high-end products has been gradually enriched. T1000 grade, M40, M40J, m55j and other carbon fibers have the ability of engineering preparation, and 25K large tow carbon fibers have been industrialized; Breakthroughs have been made in the key technologies and equipment of kiloton para aramid engineering, and high-strength and high model para aramid products have been localized; High strength and high modulus polyimide fiber, meta aramid fiber, polyphenylene sulfide fiber, continuous basalt fiber and so on have achieved rapid development. Among them, there are various high-performance fiber materials that have emerged on the Chinese fiber fashion trend publishing platform. Jiangsu Aoshen New Material Co., Ltd. has successively released products such as non dye polyimide fiber and easy dye polyimide fiber. Polyimide fiber has excellent flame retardancy, warmth retention, high temperature resistance, antibacterial and other properties. The fabric made of polyimide fiber has the properties of low burning damage length, zero smoldering duration, no melt dripping, etc. it can effectively protect the safety of firefighters when used in Fire clothing. Zhongfu Shenying Carbon Fiber Co., Ltd., as the first enterprise in China to master the dry jet wet spinning technology of carbon fiber, relying on the technical advantages of dry jet wet spinning, has achieved the industrialized mass production of T700, T800, T1000 and other different levels of carbon fiber, successfully filled the gap of domestic high-end carbon fiber, and established the company's leading position in the field of domestic carbon fiber technology. In recent years, Zhongfu Shenying has successively launched sym40 high-strength and high modulus carbon fiber and ultra-high strength carbon fiber on the Chinese fiber fashion trend release platform, which have been widely used. Hf30f carbon fiber and hf40t high-strength medium modulus carbon fiber for pressure vessels launched by Jiangsu Hengshen Co., Ltd. were selected into the fiber trends in China in 2020 and 2022 respectively. These products are targeted products launched by Hengshen according to the application needs of the state-owned market. Among them, hf30f carbon fiber is superior to imported equivalent products in modulus, and hf40t carbon fiber is superior to imported equivalent products in strength. In recent years, Jilin chemical fiber group has c