At present, most aramid non-parallel cloth products are imported aramid fiber, that is, aramid II, fully known as "polyphenyl diamine", first developed by DuPont corporation of the United States, the commodity name Kevlar ®, in 1972 to achieve industrial production and market. Current lying in the U.S., Japan, Europe, such as DuPont's Kevlar fiber in the U.S., Technora fiber spaigletin from Teijin in Japan, and Twaron fiber from Akzo Nobel of the Netherlands (combined by Teijin), Terlon fiber in Russia, etc. In 2005, Korea's Colong Company achieved the industrialization of bit aramid. China from the 1980s onwards, has carried out a number of pilot research, the current domestic enterprises have established a bit of aramid production line, the main enterprises are Yantai Tai and new material (spandex), Zhonglan Chenguang Chemical, Jiangsu Zhaodat Fiber Technology Co., Ltd., Hebei Silicon Valley Chemical, Sinopec, Guangdong Caiyan Co., Ltd.,
The scale of construction is also expanding. In addition to the bit aramid, the global commercial production of inter-bit aramid and hybrid aramid aramid. Interstitive aramid varieties include Nomex, Conex, Fenelon fibers, etc. Hybrid aramid products are currently only owned by Russia and China, Russian hybrid aramid mainly has Armos, SVM, Rusar, etc., its most advanced Rusar NT fiber reached 7.0GPa or more, performance of more than T1000G fiber, is currently the best performance of aramid fiber in the world. It was reported that its fiber-made bullet-proof product 1kg/m2 was shot less than 9mm bullets. Domestic aramid III is similar to Russia's Armos fiber, is a three-way cluster surround aromatic polyamide fiber, is developed by China's Sichuan Province, The Blue Morning Light Chemical Research Institute, Inner Mongolia 46, etc. , has basically achieved industrial scale production. Its prepared aramid non-latitude cloth products also show excellent bulletproof performance. Liu Kejie and other " 15 " using the morning light hospital Staramid F358 fiber (domestic aramid III) and Japan TeiJin company fiber Twaron 2000 (imported aramid II), respectively prepared into aramid non-latitude cloth, and then with a layer of anti-depression plate and a layer of foam combined to make a bulletproof target plate. Through ballistic testing, the bullet-proof capability of aramid III and aramid II non-parallel cloth to manufacture target platewas was tested and compared. The results showed that aramid III's bulletproof performance was nearly 30% higher than aramid II. Further research confirmed that aramid III has higher tensile strength and fracture elongation as the main reason sbetter for its elasticity, and predicted that its bullet-proof performance has room for improvement.