pubdate：2020-10-16 10:54:01 popularity：
Recently, the ultra high molecular weight polyethylene dry gel spinning process jointly developed by Nanhua Research Institute, Yizheng Chemical Fiber Company and China Textile Science Research Institute formed a complete set of industrial technology, which won the first prize of Sinopec Science and Technology Progress. This technology has broken the foreign technology blockade, filled the domestic gap, reached the international advanced level, and has built an industrial production capacity of 1300 tons/year in Yizheng chemical fiber.
Excellent performance into three generations of ultra-high strength fiber
Dr. Chu Zheng, president of the Research Institute of Nanhua Company, introduced that different from the low molecular weight of ordinary polyethylene, the molecular weight of ultra-high molecular weight polyethylene is millions of. Ultra high molecular weight polyethylene fiber is one of the important new materials supporting the world's high-tech industry, and carbon fiber, aramid and known as the three typical high performance high-tech fiber. Uhmwpe fiber plays an important role in modern warfare, aerospace and defense equipment because of its high strength, high modulus and light weight. In the case of the same thickness, it can withstand the larger mass is 8 to 10 times the steel wire rope, the strength of this fiber is 15 times higher than steel, its strength is 40% higher than aramid, known as the world's high strength fiber, it has also become the third generation of ultra-high strength fiber after carbon fiber and aramid fiber.
The fiber also has good wear resistance, impact resistance, water resistance, corrosion resistance, light resistance, wear resistance and other excellent properties, it can be directly made into ropes, cables, fishing nets and various fabrics. At the same time, it is also widely used in communication, medical, sports equipment, construction and Marine fisheries and other fields.
It is understood that ultra-high molecular weight polyethylene fiber has an unusual high-strength "character", if you cut this polyethylene fiber with a stainless steel scissors, the knife edge will be passivated after continuous cutting for one minute. Therefore, the international ultra-high molecular weight polyethylene fiber and its composite material products are also mainly used in the field of defense munitions, security protection and other fields, such as body armor, anti-stab clothing, anti-cutting clothing fabrics, anti-cutting gloves, etc. At present, China's independent production of ultra-high molecular weight polyethylene fiber has been successfully applied to military and police body armor, bulletproof helmets and bulletproof plates and other fields, in the security protection industry has played a great value.
