For a new high-performance aramid fiber has entered a period of rapid development

At present, the overall supply of aramid fiber has appeared, but the supply and demand situation of aramid 1414 is still tight. Domestic aramid fiber consumption is strong, with a compound annual growth rate of about 30%. We believe that with the increase of supply, the domestic high-temperature filter material with aramid 1313 or overcapacity, aramid 1313 in the field of technical protection, aramid paper products application market potential; domestic aramid 1414 mainly rely on Import, supply is the key.

Aramid is mainly divided into two types, para-aramid fiber (PPTA) and meta-aramid fiber (PMIA). Since the 1960s, DuPont has successfully developed aramid fiber and took the lead in industrialization. In the past 30 years, aramid fiber has gone through the transition from military strategic materials to civilian materials, and the price has dropped by nearly half. At present, foreign aramid is becoming more and more mature both in research and development and in large-scale production. In the field of aramid fiber production, production capacity is mainly concentrated in Japan, the United States, and Europe. For example, Kevlar fiber of DuPont in the United States, Twaron fiber of AkzoNobel (which has been merged with Teijin), Technora fiber of Japan Teijin and Terlon fiber of Russia.

The varieties of meta-aramid fibers are Nomex, Conex, Fenelon fibers and the like. DuPont of the United States is a pioneer in the development of aramid. They are world-class in terms of R&D, production specifications and market share of new products. Only Kevlar fiber they produce has Kevlar-49 and Kevlar. -29 and so on more than ten brands, each brand has dozens of specifications of products. DuPont announced last year that it will expand the production capacity of Kevlar fiber, which is expected to be completed by the end of this year. Well-known enterprises such as Teijin, Hearst and other aramid production are not to be outdone, have expanded production or joint ventures, and actively explore the market, hoping to become a new force in this sunrise industry.

Para-aramid is called "poly(p-phenylene terephthalamide)", Para-Aramidfiber is a new type of high-tech synthetic fiber with high strength, high modulus and high temperature resistance, acid and alkali resistance, and weight. Light and other excellent performance, its strength is 5 to 6 times that of steel wire, the modulus is 2 to 3 times that of steel wire or glass fiber, the toughness is twice that of steel wire, and the weight is only about 1/5 of steel wire, at 560 degrees. At the temperature, it does not decompose and does not melt. It has good insulation and aging resistance and has a long life cycle. The discovery of Aramid 1414 is considered to be a very important historical process in the material world.

Para-aramid fiber is an important national defense military material. In order to meet the needs of modern warfare, at present, the bulletproof vests of the developed countries such as the United States and Britain are all aramid materials, and the lightweight of aramid bulletproof vests and helmets have effectively improved the army. Rapid response and lethality. In the Gulf War, American and French aircraft used a large number of aramid composite materials. In addition to military applications, it has been widely used as a high-tech fiber material in various aspects of the national economy such as aerospace, electromechanical, construction, automotive, and sporting goods.

In aviation and aerospace, the para-aramid is light in weight and high in strength, saving a lot of power fuel. According to foreign data, in the launch of the spacecraft, each kilogram of weight is reduced, which means a reduction of 1 million US dollars. the cost of. In addition, the rapid development of science and technology is opening up more new civil space for aramid. According to reports, at present, para-aramid products are used for body armor, helmets, etc., accounting for 7 to 8%, aerospace materials and sports materials accounting for about 40%; tire frame materials, conveyor materials, etc. account for about 20%. Around 13% of the high-strength ropes.

Acordis, Germany, recently developed a high-performance fine-paragraph aramid (Twaron) product that is neither flammable nor melted, but also has high strength and extremely high cutting capacity. It can be used mainly for the production of coated and uncoated fabrics. , knitting products and needle felts, such as high temperature and resistance to cutting a variety of textile and apparel equipment. The fineness of Twaron's slender silk is only 60% of the commonly used para-aramid of occupational safety clothing. It is used to weave gloves. Its cutting resistance is increased by 10%. It is used to produce woven fabrics and knitted products. It has softer feel and more use. Comfortable.

Twaron cut-resistant gloves are mainly used in the automotive, glass and metal parts manufacturing plants, as well as leggings for the forest industry and vandal-resistant equipment for the public transport industry. Utilizing Twaron's flame retardant heat resistance, it provides equipment such as protective suits and felts for the fire brigade, as well as heat-resistant fire protection for high-temperature operations such as foundry, furnaces and glass plants, as well as production of aircraft seat resistance fuel. This high-performance fiber can also create protective equipment such as automobile tires, cooling hoses, V-belts, optical fiber cables and bullet-proof vests, and can replace asbestos as friction materials and sealing materials.

According to statistics from relevant departments, the total demand for aramid short fiber in the world was 360,000 tons/year in 2001 and 500,000 tons/year in 2005. The demand for aramid has shown a growing trend, and aramid has entered a period of rapid development as an emerging high-performance fiber.