Aramid fiber is mainly divided into two types, para-aramid fiber (PPTA) and meta-aramid fiber (PMIA). Since the 1960s, DuPont (DuPont) of the United States successfully developed aramid fiber and took the lead in industrialization. , In more than 30 years, aramid fiber has gone through the process of transition from military strategic materials to civilian materials, and the price has also been reduced by nearly half. Now aramid fiber is becoming more and more mature both in terms of research and development level and large-scale production. In the field of aramid fiber production, para-aramid fiber has the fastest development, and its production capacity is mainly concentrated in Japan, the United States, and Europe. DuPont announced last year that it will expand the production capacity of Kevlar fiber, and the expansion project is expected to be completed by the end of this year. Not to be outdone, well-known aramid companies such as Teijin and Hearst have expanded production or joined forces one after another, and actively explored the market, hoping to become a new force in this sunrise industry.
The full name of para-aramid is “poly-paraphenylene terephthalamide”, which is Para-Aramid fiber in English. It is a new type of high-tech synthetic fiber with ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance. , light weight and other excellent properties, its strength is 5 to 6 times that of steel wire, its modulus is 2 to 3 times that of steel wire or glass fiber, its toughness is 2 times that of steel wire, and its weight is only about 1/5 of steel wire. Under the high temperature, it will not decompose or melt. It has good insulation and anti-aging performance, and has a long life cycle. The discovery of aramid 1414 is considered to be a very important historical process in the material industry.
