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The main use of carbon fiber is to composite with matrices such as resin, metal, ceramics, etc. to make structural materials. The comprehensive indicators of specific strength and specific modulus of carbon fiber reinforced epoxy resin composite materials are relatively high among existing structural materials. In fields with strict requirements for density, stiffness, weight, fatigue characteristics, and in situations where high temperature and chemical stability are required, carbon fiber composite materials have significant advantages. Carbon fiber was produced in the early 1950s in response to the needs of cutting-edge scientific and technological advancements such as rockets, aerospace, and aviation. It is also widely used in sports equipment, textiles, chemical machinery, […]

Carbon fiber (CF) is a new type of fiber material with a carbon content of over 95% and high strength and modulus. It is a microcrystalline graphite material obtained by stacking organic fibers such as flake graphite microcrystals along the fiber axis direction, and subjecting them to carbonization and graphitization treatment. Carbon fiber is “soft on the outside and rigid on the inside”, lighter in weight than aluminum metal, but stronger than steel, and has the characteristics of corrosion resistance and high modulus. It is an important material in national defense, military industry, and civilian use. It not only possesses the inherent properties of carbon materials, but also has the

There are three classification methods for carbon fiber: 1. There are three types of carbonization based on raw materials: 1. The precursor is polyacrylonitrile; 2. The parent material is petroleum or coal tar pitch; 3. The parent material is adhesive silk or phenolic fiber 2. There are two types of processing methods: 1. long single fine fibers; 2. Short fibers or chopped fibers 3. According to mechanical properties, there are low modulus, standard modulus, bullet modulus, high modulus, and ultra-high modulus carbon fiber. Low modulus carbon fiber: elastic modulus below 200GPa, strength below 3500MPa Standard elastic modulus carbon fiber: elastic modulus between 200-280GPa, strength around 2500MPa or higher Bullet modulus