Beijing carbon fiber Aramid Fiber Co., Ltd.   

The intrinsic characteristics of carbon materials, and the softness of the textile fibers, are the new generation of reinforced fiber. Compared with the traditional glass fiber (GF) and Young's modulus is 3 times as much; it is compared with that of Kevlar fiber (KF-49), not only young's modulus is the 2 times the left and right sides, and in organic solvent, acid and alkali insoluble expansion and corrosion resistance of outstanding. There are scholars in 1981 will pan based CF soaking in NaOH alkali solution, the time has past more than 20 years, it has remained fiber morphology.

    carbon fiber is an inorganic high polymer fiber containing carbon content higher than 90%. Which contains the amount of carbon is higher than 99% of the graphite fiber. The axial strength and modulus of carbon fiber is high, without creep, good resistance to fatigue, and specific heat and electrical conductivity of the metal and metal, the thermal expansion coefficient is small, good corrosion resistance, fiber density is low, X ray transmittance is good. But its poor impact resistance, easy to damage, under the action of the acid oxidation, metal and composite will metal carbide, cementite and electrochemical corrosion. Therefore, surface treatment of carbon fiber before use.

    carbon fiber can be made of acrylic fiber, asphalt fiber, viscose fiber, or phenolic fiber. The state can be divided into filament, staple fiber and short fiber. The mechanical properties can be divided into general type and high performance type. General carbon fiber strength was 1000 MPa (MPa) and modulus of 100GPa. High performance carbon fiber is divided into high strength (2000MPa, 250GPa) and high model (modulus 300GPa above). Intensity greater than 4000MPa is also known as ultra high strength; modulus is greater than 450GPa called the super high model. With the development of aerospace and aviation industry, high strength and high elongation type carbon fiber appeared, and its elongation was more than 2%. The largest amount of PAN based carbon fiber.

    carbon fiber can be processed into fabric, felt, mat, tape, paper and other materials. Carbon fiber is used as the material of the material, such as the material, metal, ceramic, concrete and so on. Carbon fiber reinforced composites used as aircraft structural materials, electromagnetic shielding in electrical materials, artificial ligaments and other body substitute materials as well as for manufacturing the rocket shell, motor boats, industrial robots, automobile plate spring and drive shaft etc..