Carbon Fiber Application

Carbon fiber is an inorganic polymer material containing more than 90% of carbon, with polyacrylonitrile (asphalt or viscose) as raw material, after high temperature oxidation, carbonization and other aspects of the generation of high-performance fibers with the highest specific strength, specific modulus of the fibers, and high temperature resistance of all chemical fibers in the first place. 

Carbon fiber application explosion point

(A) low-altitude economy

March 28 this year, the Ministry of Industry and Information Technology, the Ministry of Science and Technology, the Ministry of Finance, Civil Aviation Administration of China issued the “General Aviation Equipment Innovation and Application Implementation Plan (2024-2030)”, proposed by 2030, to promote the low-altitude economy to form a trillion-dollar market size.

Carbon fiber composite with light weight, high strength, corrosion resistance and other advantages, its application in the aerospace field has been a long time. 2023 global carbon fiber demand totaled 115,000 tons, of which 19.1% from the aerospace military field.

Information shows that the Peng Huitian's traveler X2, peak flying aviation “ShengShiLong” began to use carbon fiber composite materials on a large scale. The first to obtain the Civil Aviation Administration for the type qualification certificate and the standard airworthiness certificate of the EH216-S unmanned aerial vehicle also uses epoxy-based carbon fiber composite materials. It is expected that the fuselage material of mainstream products in the future, carbon fiber composite material is expected to become mainstream.

(ii) Sports and leisure

Carbon fiber is used in the field of sports and leisure, such as ball clubs, fishing rods, tennis rackets, badminton rackets, bicycles, ski poles, skis, windsurfing masts, nautical hulls, and other sporting goods are the main users of carbon fiber, it is estimated that the world's production of carbon fiber fishing rods is about 20 million pairs per year.

Carbon fiber is used in daily necessities, such as stereos, bathtubs, heaters and other household appliances, as well as cell phones, laptops and other electronic products can also be seen in the figure of carbon fiber. Carbon fiber is also used in other marine sports such as boating and rowing.

(C) Wind power photovoltaic

From the downstream demand of China's carbon fiber industry, the current demand for carbon fiber accounted for a higher percentage of the field is sports and leisure and wind power blades, the demand accounted for 30.9%, 23.5%.

With the expiration of Vestas core technology patents, the rapid expansion of domestic carbon fiber and continued cost reduction and efficiency, offshore wind power rapid penetration and wind turbine large-scale trend and other multiple positive factors, it is expected that the domestic wind power with carbon fiber will get more space for development, continue to drive the growth of domestic carbon fiber demand.

In addition, the early photovoltaic industry producers mostly use graphite material composition of the crucible as the thermal field system insulation material, and carbon composite crucible has a long service life, high stability of the thermal field, stable crystallization rate and other advantages, carbon composite material will replace graphite material, is widely used in single crystal pulling furnace and polycrystalline ingot casting furnace thermal field system.

(D) fiber reinforcement

Carbon fiber reinforcement includes carbon fiber cloth reinforcement and carbon fiber board reinforcement of two kinds.

Carbon fiber materials for concrete structure reinforcement repair research began in the 80's, the United States, Japan and other developed countries. China's start of this technology is very late, but with the rapid development of China's economic construction and transportation, a considerable part of the existing building due to the low design load standard caused by the historical legacy of some buildings due to the change in the use of the function of the building, it is difficult to meet the current specification of the use of the demand for urgent need for repair, reinforcement.

Carbon fiber reinforcement repair structure technology is to increase the concrete cross-section, wrapped steel reinforcement, adhesive steel reinforcement after another new type of structural reinforcement technology, and more than increase the cross-section method, wrapped steel reinforcement method, adhesive steel reinforcement method is more solid, therefore, carbon fiber reinforcement is expected to be deeply applied.