As can be seen from the latest operating data, the overall operation trend of China's chemical fiber industry is not good, the overall performance of the industry is sluggish, profits dropped significantly, and as one of the downstream chemical fiber industry, but the outstanding performance of the textile industry. Statistics show that from January to April this year, the growth rate of GDP of the industrial textile industry reached 19.44%, much higher than the industry average. Experts predict that the double-digit growth in the industrial textile industry will be more secure this year under the environment of declining overall operation quality of the industry. As an upstream industry, it is crucial to fully understand the status quo, problems and needs of fiber industry in the industry. Filtration and separation of fibers: should follow the trend of trends Sichuan Institute of Textile Science Institute of High-Technology Fiber Wang Hua told reporters that the growing variety of filter materials is an indisputable fact that, from the material alone, there are natural fibers, synthetic Fiber, inorganic fiber and metal fiber, etc. In recent years, our country has also developed a series of high temperature resistant filter media including aromatic polyamides, polyimides and polytetrafluoroethylene. From the results of various process parameters and finished product experiments , But also to basically meet the needs of domestic dust discharge enterprises. Such as polytetrafluoroethylene, the maximum temperature can reach 260 degrees Celsius. "But in my opinion, technology is not the most worrying issue, and I think there are two points worth more attention than technology." Wang Hua said that including fiber production enterprises specializing in the production of filtration and separation textiles, Most fiber manufacturers do not understand the latest trends and levels of fiber production in the world. Therefore, the news blockade has become one of the stumbling blocks to many low-end products caused by the bad development of many enterprises. "Some enterprises also prefer to stick to conventions and use a kind of material Production, and give up a better choice, which is quite detrimental to the development of the enterprise. "In addition to dust filtration, liquid filtration is also the main field of textile applications for filtration and separation. According to Zhang Hongwei, Party Secretary of Tianjin Polytechnic University, "Currently the fibers needed for domestic water treatment components must first of all have strong anti-fouling capabilities. However, the technology of most domestic fiber production enterprises still can not meet the above requirements and generally depend on imports." In recent years, Tianjin Polytechnic University has made some progress in this regard. It is understood that at present Tianjin Polytechnic uses radiation grafting technology to prepare a large flux high resistance to polyvinylidene fluoride PVDF hollow fiber membrane, anti-pollution than the traditional technology to improve more than 50%, in addition, due to the use of low-voltage technology, energy consumption The level is also reduced by more than 15%. Geotechnical and construction fibers: the market needs subdivision For geotechnical and architectural textiles, due to its special filtration, drainage, isolation, reinforcement, seepage, protection, it is also proposed to the relevant fiber high strength, fixed Long, super wear-resistant, acid-resistant fibers, biodegradable, anti-aging, noise, flame retardant and other functional requirements. Accelerate the development and application of functional woven or warp geotextile and geomembrane (grille), pay attention to the ecological development of new geotextile textile, break through the industrialized technology of permanent membrane structural material for light construction, and develop new high-tech geosynthetics Material processing technology is the future direction of development and requirements. Cui Zhanming, chairman of Shandong Hongxiang Chemical Fiber Group Co., Ltd., told reporters that geotextile fibers are mainly polypropylene staple fiber, polyester staple fiber, polyester filament, glass fiber, split film yarn, carbon fiber and so on. "However, at present, the geosynthetic fiber has not yet formed a market segmentation, differentiation and professional pertinence, more recycled fiber, in this area, the development of high-performance fiber needs to be improved." Cui Zhanming said. At present, the development direction of medical and sanitary textiles is to research and develop medical tissue and organ materials, develop high-end medical protective equipment and promote new-type sanitary products. Related to this special fiber is biomedical fiber, medical or sanitary grade PPT spunbond special sections and short fibers, biodegradable, antibacterial, superabsorbent and other functional fibers and differential fibers. Shandong Huaxing Textile Group Co., Ltd. produced by the chitosan fibers, medical and health textiles fibers on behalf of. Although raw materials of chitosan fiber can be recycled, there are very few raw materials that have practical application value each year. However, chitosan is a small industry that can not attract the attention of the industry, the lack of planning and management, the lack of professional research and technical personnel, seriously affected the in-depth research and development of chitosan technology and industrial engineering, industrialization progress. Faced with the new development requirements of the new era, it is the future development direction to research and develop medical tissue and organ materials, develop high-end medical protective products and promote new type of sanitary products. Therefore, to produce more functional and differentiated special fibers, Life and health escort. Transport fibers: part of the function is still lacking In recent years, with the improvement of people's living standards and consumer demand, the automotive industry has been an unprecedented boom. Followed by the transport of textiles hot and highly sought after, airbags dedicated filament, strong adsorption, anti-odor, antibacterial, flame retardant, mildew mothproof, self-cleaning and other differential fiber, high strength fine denier Spinable glass fiber, functional microfiber began to gradually take to the market stage. Zhejiang Haili De New Materials Co., Ltd., as a supplier of raw materials for automobile brands such as Volkswagen and Audi, has experienced the entire process of developing and applying the special airbag for airbags. Ge Jun Chun, director of the company told reporters that the automotive airbag fine denier polyester high-strength (low shrinkage) industrial filament processing of its products is very difficult, high technical content. "Has good physical and mechanical properties, high strength, light weight, good friction properties, good elasticity; in addition to high chemical stability, anti-aging; folding volume, the fabric is soft, inflatable in the balloon is not easy to rub the staff Facial skin and other features of the product is recognized by car manufacturers and consumers. "The future, high-performance automotive interior fabrics, multi-functional cover material, eco-microfiber imitation leather fabric is the development of transport textiles Focus. For automotive interior fabrics, textiles and composite materials industry, technology innovation strategic alliance, said workers in the celery, the interior fabric faded light, affecting the appearance and life expectancy; flame retardant, noise, poor resistance to rubber; lack of composite interior fabric Functional; VOC serious excessive; atomization degree exceeded, reduce transparency, affecting the sight of comfort is poor; non-recoverable sponge and other issues are real. "We will work hard to solve these problems in the next step, such as pure polyester flexible composite material, hemp and polyester flexible composite material, new car door cushioning material and natural fiber composite material development," said Yu Fanqin. Safety and protection of fibers: a number of functions need to be both safety and protection of textiles As a more special type of textile, fiber also made specific requirements. General Logistics Department Military Equipment Institute, Dr. Hao Xinmin introduced high temperature flame retardant fiber materials, carbon fiber, PTFE fiber is more representative, of which, PTFE fiber is a high temperature flame retardant fiber material One of the earliest varieties of development, its excellent chemical stability, wax surface of the fiber, the friction coefficient is small, it is difficult to burn in high oxygen environment; flame retardant textiles can be widely used in schools, hospitals, hotels and other public areas , But also can be used as firefighting, military operations, nuclear-powered overalls; high strength and high modulus fibers, are now used in bullet-proof clothing and bullet-proof helmets more bullet-proof performance, high protection area, but the fiber strength and modulus Not high enough, the price is high, and some of the temperature resistance and poor adhesion, resin system to be further optimized; for conductive fibers, the application makes the textile significant anti-static effect, durable and not affected by environmental humidity, and It can be applied to special functional textiles such as electrostatic work clothes. Cold-proof and warm fiber materials are hollow fiber, ultra-fine fiber, far-infrared fiber Etc. In the future, it will develop into a multi-functional complex. Structural enhancement of fiber: take the initiative to take the initiative is China's first project involving structural reinforcement materials are soft materials, such as the Shanghai 80,000 gymnasium, including the Expo Axis after the water Cube, etc., in this area our country now use more fiber is Polyester, Polyolefin (PO), Polyvinylpyrrolidone (PVP), more glass fiber and Teflon. "At present, the fiber for structural reinforcements represents the highest level in the textile industry." Li Lingshen, president of China Industrial Textile Industry Association, said: "The most important problem to be solved is that domestic carbon fiber producers, including glass fiber producers, do not know the finished product To sell to who can not think of bicycle manufacturers to buy carbon fiber bicycle, but rather a lot of carbon fiber manufacturers do their own bicycles. "According to reports, carbon fiber is currently mainly used in sports and leisure products more real for high-tech relative Less, so the future of carbon fiber development space will be very broad. Further reading the research and development directions in the six major areas The development direction of medical and health textiles In order to research and develop medical tissue and organ materials, develop high-end medical protective equipment and promote new-type health products. Related to this special fiber is biomedical fiber, medical or sanitary grade PPT spunbond special sections and short fibers, biodegradable, antibacterial, superabsorbent and other functional fibers and differential fibers. Filtration and separation With the development of textiles for the development of high temperature, corrosion-resistant filter materials, the development of medicine, chemicals, food, paper and other processing areas with filter material. Related to this special fiber is high temperature, corrosion-resistant high-performance fibers, polypropylene, nylon, polyester monofilament, a variety of hollow fibers, differential filter special fiber. Geotechnical and Architectural Textiles Development Direction In order to accelerate the development and application of functional woven or warp geotextile and geomembrane (grille), break through the industrialized technology of permanent membrane structure materials for light construction. Related to this special fiber is high strength, set elongation, super wear-resistant, acid-resistant fibers, biodegradable, anti-aging, noise, flame retardant and other functional fibers. The direction of development in the field of vehicle textiles is the development of high-performance automotive interior fabrics, the development of multi-functional canopy materials and the development of eco-microfiber imitation leather fabrics. Corresponding to the relevant special fiber is airbag dedicated filament, strong adsorption, anti-odor, antibacterial, flame retardant, mildew proof, self-cleaning and other differential fiber, high strength fine denier spinnable glass fiber, . The development direction of safety and protection textiles is to develop bulletproof and stab-resistant materials, pay attention to the ecological development of new geotextiles and develop flame-retardant protective fabrics and garments. Correspondingly, the related special fiber is a new generation of performance optimized anti-puncture fiber, aramid, polyesterimide fiber, basalt fiber and other high-performance fiber, metal fiber functional differentiation products. The direction of the development of structural reinforcement textiles is the development of traditional structural materials alternative products, the development of new structures to enhance the use of textile materials. Corresponding to the special fiber is glass fiber and carbon fiber, thermoplastic fiber and a new type of skeleton material fiber.
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