Guidance for the development of chemical fiber industry

I. General requirements

(1) Guiding ideology

 We will coordinate the economy and security of the industrial chain and supply chain, accelerate research on key core technologies and equipment, and promote the transformation of high-end, intelligent and green industries to achieve high-quality development.

(2) Basic principles

Innovation-driven, shaping advantages. Adhere to the core position of innovation in the development of chemical fiber industry, face the frontier of science and technology, face the upgrading of consumption, face the major demand, improve the innovation system, and shape the new momentum and new advantages of the development of the textile industry.

Improve the structure, open up and cooperate. We will improve regional layout, strengthen international cooperation, promote digital transformation, eliminate outdated production capacity and mergers and reorganizations in accordance with laws and regulations, foster leading enterprises, promote integrated development of large, small and medium-sized enterprises, and consolidate and enhance industrial competitiveness.

Green development, circular low carbon. We will give priority to energy conservation and carbon reduction, develop green factories, green products and green supply chains, strengthen the comprehensive utilization of waste resources, expand green fiber production, and build a clean, low-carbon and circular green manufacturing system.

Leading textile, service frontier. Increase the supply of high-quality products, optimize the high-performance fiber production and application system, cultivate fiber well-known brands, expand fiber application fields, lead the textile value improvement from the raw material side, and serve the development of strategic emerging industries.

3. Development goals

By 2025, the industrial added value of chemical fiber enterprises above designated size will increase by 5% annually, and the proportion of chemical fiber production in the world will be basically stable. The innovation ability has been continuously enhanced, the investment intensity of industry research and development funds has reached 2%, and the research and development and manufacturing capacity of high-performance fiber has met the national strategic needs. The digital transformation has achieved remarkable results, the digital penetration rate of enterprise operation and management has reached 80%, and the numerical control rate of key processes has reached 80%. The green manufacturing system has been continuously improved, the proportion of green fibers has increased to more than 25%, the annual average output of bio-based chemical fibers and degradable fiber materials has increased by more than 20%, the comprehensive utilization level and scale of waste resources have been further developed, and the carbon emission intensity of the industry has been significantly reduced. Form a group of leading enterprises with strong competitiveness, build a high-end, intelligent and green modern industrial system, and comprehensively build a chemical fiber power.

Second, improve the level of innovation and development of industrial chains

1. Strengthening the foundation for innovation We will open up the whole chain of theoretical research, engineering research and development, and achievement transformation, and form a scientific and technological innovation system with enterprises as the main body, the market as the guide, and industry, university and research institutes deeply integrated. Give full play to the role of universities and scientific research institutes as the main force of original innovation, and carry out forward-looking fiber material research. Enhance the service capabilities of national and provincial advanced functional fiber innovation centers and the innovation capabilities of enterprise technology centers. We will strengthen technological research on key equipment and raw materials, promote research on process routes and technical reserves of bio-based chemical fiber raw materials and coal-to-chemical fiber raw materials, and enhance the security and stability of the industrial chain.

2. Improving regional distribution. Implementation of the regional development strategy, in line with industrial, energy, environmental protection and other policies, encourage leading enterprises in Guangxi, Guizhou, Xinjiang and other central and western regions to build the whole industrial chain integration base of chemical fiber textile, and form an efficient collaborative supply chain system with neighboring countries and regions. Guide chemical fiber enterprises to participate in the construction of transnational industrial chain and supply chain, and encourage enterprises to improve the global industrial chain layout.

3. Fostering high-quality enterprises. We will encourage enterprises to optimize the allocation of production factors through mergers and reorganizations, and speed up business process reengineering and technological upgrading. Support leading enterprises to gather quality resources such as technology, brands, channels, and talents, enhance supply chain leadership, and provide common technology output and overall industrial chain solutions for the garment, home textile, and industrial textile industries. We will promote the integrated development of large, small and medium-sized enterprises, and foster specialized and new "small giants" enterprises and individual champions.

Third, promote the high-end development of new fiber materials

(1) Increase the added value of conventional fibers. To achieve high-quality, intelligent and green production of conventional fibers, develop differentiated and functional fiber products such as super simulation and stock solution coloring, improve the performance and quality stability of functional fibers, expand the application field of functional fibers, and promote the industrialization and high-end application of biomedical fibers. Strengthen the quality control of the entire production process, promote the supply of high-quality products, and meet the upgrading and personalized needs of consumption.

Box 1 Fiber efficient flexible preparation and quality improvement

1. Fiber efficient flexible preparation technology and equipment improvement. Breakthrough functional fiber in situ polymerization, multi-component high proportion copolymerization, online addition and efficient flexible spinning and polyamide 6 melt direct spinning and other technologies, improve nanofiber macro preparation, smart fiber design and preparation level.

2. Differentiated and functional variety development. Development of new functional polyester, high quality chemical monomers and ultra-simulation, flame retardant, antibacterial and antiviral, conductive, phase change energy storage, temperature control, photochromic, liquid coloring, adsorption and separation, biomedical functional fiber varieties.

3. Research and development of key materials and auxiliary materials. Research and development of key materials and auxiliary materials for functional fibers, as well as flame retardants, modifiers, masterbatches, catalysts, oils and other additives.

(2) Improve the production and application level of high-performance fibers. Improve the production and application level of carbon fiber, aramid, UHMWPE fiber, polyimide fiber, polyphenylene sulfide fiber, polytetrafluoroethylene fiber, continuous basalt fiber, and improve the quality consistency and batch stability of high-performance fiber. Further expand the application of high-performance fibers in aerospace, wind and photovoltaic power generation, Marine engineering, environmental protection, safety protection, geotechnical construction, transportation and other fields.

Box 2 Key technological breakthroughs and efficient and low-cost production of high-performance fibers

1. High performance carbon fiber. Overcome the preparation technology of large filament tow above 48K, high strength, high die and high extension, T1100 and M65J carbon fiber, break through the equipment manufacturing technology of high-precision metering pump, spinneret, draft machine, wire take-up machine, wide-width pre-oxidation furnace, high and low temperature carbonization furnace, wide-caliber graphitization furnace and other equipment, and develop composite material technology and equipment such as automatic lay molding and automatic die molding. Develop carbon fiber composite repair and reuse technology.

2. Aramid. Research and development of para-aramid raw materials efficient dissolution, spinning stability control, high temperature heat treatment, solvent recovery and other key technologies, large capacity continuous polymerization, high-speed spinning, high stability and high-speed traction, drafting equipment manufacturing technology. To overcome key technologies such as solvent system of meta-aramid fiber, efficient defoaming of spinning stock solution and high-speed spinning, and develop the industrialization technology of high-strength and high-elongation meta-aramid fiber.

3. Other high-performance fibers. Improve the production technology level of heat resistance, creep resistance, high strength, high cutting resistance, corrosion resistance, radiation resistance UHMWPE fiber, fine denier, profiled section polyphenylene sulfide fiber, fine denier, fire prevention and nuclear polyimide fiber. Breakthrough in the key technologies of monomer synthesis and purification of aromatic polyester fiber, polyp-phenylene benzoxazole fiber, polyether ether ketone fiber, and high-speed stable spinning. Develop basalt fiber large-scale tank kiln, multi-variety differentiated infiltrating agent and other technical equipment, research and development of the third generation of continuous silicon carbide fiber preparation technology, breakthrough alumina fiber, silicon-boron-nitrogen fiber, zirconia fiber and other key preparation technology.

4. High-performance fiber innovation platform. Promote the construction of high-performance fiber and composite material innovation platform, focus on the common key technologies and engineering problems of high-performance fiber and composite material industry, and form a whole industrial chain of basic chemical raw materials - high-performance fiber/high-performance polymer - composite materials and products molding processing - product testing and evaluation - product application.

(3) Accelerate the development of bio-based chemical fibers and degradable fiber materials. Improve the purity of bio-based chemical fiber monomers and raw materials, accelerate the integration of stable, efficient and low-energy complete sets of technology and equipment, and achieve large-scale and low-cost production. Support the key technical equipment of degradable fiber materials such as degradable aliphatic polyester fiber, break through the technical bottleneck of raw material preparation and efficient polymerization reaction, strengthen the evaluation of fiber degradability, and guide downstream applications.

Box 3: Technological research and industrialization of bio-based chemical fibers and degradable fiber materials

1. Bio-based chemical fiber raw materials. Breakthrough in Lyocell fiber special pulp, solvent, crosslinking agent and fiber grade 1, 3-propanediol, succinic acid, 1, 4-butanediol, furan dicarboxylic acid, high light pure lactide and other biological monomers and raw materials efficient preparation technology.

2. Bio-based chemical fibers. Improve the key technologies for large-scale production of Lyocell fiber, polylactic acid fiber, bio-based polyamide fiber, propylene glycol terephthalate fiber, polyethylene furanediate fiber, seaweed fiber, chitosan fiber, etc. The green manufacturing technology of cellulose fiber such as ionic liquid solvent method (ILS method) and low temperature urea method was studied.

3. Degradable fiber materials. The preparation technology of PBAT (copolymer of butylene adipate and butylene terephthalate), PBS (polybutylene succinate), PHBV (polyhydroxybutyrate valerate), FDCA-based polyester (furan dicarboxylic polyester), PHA (polyhydroxyfatty acid ester) and PCL (polycaprolactone) has been improved. Orderly development of poly3-hydroxyalkanoate (PHA), polybutylene succinate - co-butylene terephthalate (PBST) and other materials industrialization promotion and application.