On November 6th, at the biennial Zhuhai Air Show, the CR929, a 280 long-range wide-body aircraft developed by China and Russia, made its debut at the International Air Show with a 1:1 display prototype. Composites are expected to exceed 50% in this latest generation of large aircraft. Similarly, on the C919, which flew for the first time on May 5 last year, composite materials used accounted for 12% of the structural weight of the aircraft. The composite material here is mainly carbon fiber composite material.
According to aviation experts, in order to improve the advanced nature and environmental protection of aircraft, carbon fiber composite materials are currently the main means of aircraft lightweighting, and also the mainstream trend in the future. Due to its light weight, high strength, fatigue resistance, corrosion resistance, good molding process and low cost, the large application of carbon fiber composite materials in aviation equipment can effectively improve performance, reduce structural weight, reduce operating costs and enhance market competition. Force, therefore, more and more applications in aircraft structures.
In addition to the aviation field, many composite rocket shells are also made of carbon fiber. On high-end sports cars, carbon fiber is a major advanced material. According to experts, carbon fiber is an inorganic polymer special fiber with a carbon content of more than 90%. Compared with titanium, steel, aluminum and other metal materials, carbon fiber has small specific gravity, high strength, large modulus, high temperature resistance and friction resistance. Excellent performance such as corrosion resistance and soft workability of fibers. The current commercial use of carbon fiber is clearer than the other “carbonaceous” “magical material” graphene.
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