With the continuous development of modern warfare and technology, the research and development of bulletproof vests and related products has made significant progress in the past half century. These advances are mainly reflected in the organic combination of new bulletproof materials and textile technology, which not only greatly improves the protective effectiveness of bulletproof vests, but also comprehensively optimizes the cost, wearing comfort and portability.
The working principle of bulletproof vests can be understood as follows: when a bullet hits the fabric layer of a bulletproof vest, shock waves and strain waves are generated around the impact point. These waves can travel through a large number of fibers through rapid propagation and diffusion, thereby absorbing the energy of the shock wave in a relatively large area. It is this extensive energy absorption that effectively reduces the impact of the bullet on the human body, thereby achieving the protective effect of the bulletproof vest.
Bulletproof materials and their outstanding properties
The core of bulletproof vests lies in the high-strength fiber materials they use. Among them, para-aramid fiber, also known as para-aromatic polyamide fiber, is a highly respected bulletproof material. This fiber was first developed and put into production by DuPont in the United States and is widely known as Kevlar. Its highly symmetrical chemical structure gives the molecular chain excellent rigidity, making it significantly different from conventional flexible chain polymers in solubility, rheological properties and processing methods. Para-aramid
fiber is known for its excellent physical and mechanical properties, including ultra-high strength, high modulus and lightweight. Its specific strength is as high as 5 to 6 times that of traditional steel wire, and its specific modulus is also 2 to 3 times that of steel wire. In addition, this fiber also exhibits excellent thermal properties, can withstand high temperatures, low expansion and low thermal conductivity, and will not burn or melt. At the same time, para-aramid fiber also has good insulation, corrosion resistance and aging resistance, so it is known as "bulletproof fiber."
Application and Prospect of Para-aramid
Para-aramid fiber, a key material in the defense industry, has been widely used around the world. According to statistics, aramid accounts for more than 50% of protective fibers in the United States and 10% in Japan. Its lightweight properties enable aramid bulletproof vests and helmets to significantly improve the rapid response capabilities of the military. In addition, para-aramid is also widely used in many fields such as automobiles, communications, aerospace, and sports and outdoor due to its excellent performance.
At present, international giants such as DuPont of the United States, Teijin of Japan, and Cologne of South Korea have achieved industrial-scale production of para-aramid. In China, Taihe New Materials was the first to break through the industrialization problem of 1,000-ton para-aramid in 2011, and its product performance indicators have reached the international leading level. With the continuous improvement of the performance of domestic para-aramid, the high-quality development of downstream application fields, and the cost advantages brought by the expansion of production scale, para-aramid is expected to enter more fields. It is expected that the compound growth rate of para-aramid market demand will remain at around 5% in the next few years, and the demand is expected to reach 20,000 tons by 2025.
As a global leader in industrial textiles, Jindi Wilk Group has won the defense product production qualification certificate issued by the UK Ministry of Defense and is committed to providing high-performance textile products for the public security field.
Application and Prospect of Para-aramid
Para-aramid fiber, a material that occupies a key position in the field of national defense and military industry, has now been widely used around the world. According to statistics, aramid accounts for more than 50% of protective fibers in the United States, and Japan has reached 10%. Its lightweight characteristics enable aramid bulletproof vests and helmets to significantly improve the rapid response capabilities of the military. In addition, para-aramid is also widely used in many fields such as automobiles, communications, aerospace, and sports and outdoor due to its excellent performance.
At present, internationally renowned companies such as DuPont in the United States, Teijin in Japan, and Cologne in South Korea have achieved industrial-scale production of para-aramid. In China, Taihe New Materials was the first to break through the industrialization problem of 1,000-ton para-aramid in 2011, and its product performance indicators have reached the international leading level. With the continuous improvement of the performance of domestic para-aramid, the high-quality development of downstream application fields, and the cost advantages brought by the expansion of production scale, para-aramid is expected to enter more fields. Looking ahead, the compound growth rate of market demand for para-aramid is expected to remain at around 5%, and the demand is expected to reach 20,000 tons by 2025.
