Carbon fiber refers to high strength and high modulus fiber with carbon content of more than 90%. High temperature resistance ranks first among all chemical fibers. It is made of acrylic fiber and viscose fiber by oxidation and carbonization at high temperature. It is an excellent material for manufacturing aerospace and other high-tech equipment.
Carbon fiber is mainly composed of carbon element, which has the characteristics of high temperature resistance, friction resistance, heat conduction and corrosion resistance. Its shape is fibrous, soft and can be processed into various fabrics. Because its graphite microcrystalline structure is preferentially oriented along the fiber axis, it has high strength and modulus along the fiber axis. The density of carbon fiber is small, so its specific strength and specific modulus are high. The main purpose of carbon fiber is to composite with resin, metal, ceramics and carbon as reinforcement to manufacture advanced composite materials. The specific strength and specific modulus of carbon fiber reinforced epoxy resin composites are the highest among the existing engineering materials.
The diameter of carbon fiber is only 5 microns, which is equivalent to one tenth to one twelfth of a hair, but its strength is more than 4 times that of aluminum alloy.
