Carbon fiber is a kind of high strength and high modulus fiber with carbon content above 90%. High temperature resistance ranks first among all chemical fibers. Acrylic fiber and viscose fiber are used as raw materials, which are oxidized and carbonized at high temperature. It is an excellent material for manufacturing aerospace and other high-tech equipment.
It has the characteristics of high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance. It is fibrous and soft, and can be processed into various fabrics. Because its graphite microcrystal structure is preferentially oriented along the fiber axis, it has high strength and modulus along the fiber axis.
Carbon fiber has low density, so its specific strength and specific modulus are high. The main purpose of carbon fiber is to be used as a reinforcing material, compounded with resin, metal, ceramics and carbon to make advanced composite materials. Carbon fiber reinforced epoxy resin composites have the highest specific strength and modulus among existing engineering materials.
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Uses of carbon fiber:
The main purpose of carbon fiber is to make structural materials by compounding with resin, metal, ceramics and other substrates. The comprehensive indexes such as specific strength and specific modulus of carbon fiber reinforced epoxy resin composites are the highest among the existing structural materials. Carbon fiber composites have advantages in areas with strict requirements such as density, stiffness, weight and fatigue characteristics, as well as occasions requiring high temperature and high chemical stability.
Carbon fiber was produced in the early 1950s to meet the needs of rocket, aerospace, aviation and other advanced technologies, and now it is widely used in sports equipment, textiles, chemical machinery, medical treatment and other fields.
With the increasingly strict requirements of cutting-edge technology on the technical performance of new materials, scientific and technological workers are constantly striving to improve. In the early 1980s, high-performance and ultra-high-performance carbon fibers appeared one after another, which was another technological leap and also marked that the research and production of carbon fibers entered an advanced stage.
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