Carbon fiber is the fiber with the highest strength and modulus at present, which is widely produced in high-performance fibers, and it is generally not used alone, usually with resin to form composite material. As a kind of high performance fiber, with its many advantages in many fields, this paper will make a simple analysis of the performance of carbon fiber composites.
Carbon fiber composite materials have the softness of textile fibers, can be made of a variety of carbon fiber products, and in the direction along the fiber axis exhibits high strength, carbon fiber composite material with design freedom, different products have different requirements, carbon fiber composite material can be reasonably laid to meet performance requirements. The corrosion resistance of carbon fiber composites is outstanding, and it has good corrosion resistance to the general organic solvent, acid and alkali, and it is insoluble and insoluble. The carbon fiber composite has excellent mechanical properties, its tensile modulus is 230GPa, its specific strength and specific stiffness are also higher than other structural materials, and its weight is lighter than aluminum, about 1.7g/cm3, less than 1/4 of steel. The carbon fiber composite material is stable in size and small in thermal expansion coefficient. It will not cause deformation due to the change of temperature. The carbon fiber composite material can work normally at the temperature of -50 C ~180 C, and it is fireproof and flame retardant, ensuring the safety. In addition, carbon fibers also have good electromagnetic shielding and X – ray transmittance.
Almost no material can be comparable with the carbon fiber composite material, so the carbon fiber products are increasingly popular, can see the figure of carbon fiber in aerospace, rail transportation, medical equipment, auto parts, machinery parts, sports equipment, etc., carbon fiber composite materials has become the indispensable economic and strategic materials the construction of National defense.
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