Carbon fiber is a kind of special fiber, has the general characteristics of carbon materials, such as high temperature resistance, friction resistance, electrical conductivity, corrosion resistance, high strength, light weight, and can be made into composite resin, auto parts, machinery parts, aircraft components, medical board and other products, welcomed by the people. But now the carbon fiber products on the market are of different quality. They are of high quality, poor quality, and other cheap materials, which are falsely called carbon fibers. This article will teach you how to distinguish true and false carbon fibers.
Carbon fiber is made of high temperature carbonization and pre oxidation of polyacrylonitrile fiber and asphalt fiber. It is very slender, and its diameter is only 1/20 of that of hair. It is usually woven into cloth and made of products after prepreg resin. So we usually see the carbon fiber products, there are beautiful knitting lines on the surface. In the process of production, spreading shape, coated with resin glue, vacuum processing, high temperature baking steps are likely to affect the carbon fiber pattern stereo feeling, want to do a perfect show, it is admitted to the technical personnel of the manual ability, especially the fine parts of carbon fiber bending angle, the where are the transition can be well expressed with clarity and texture of carbon fiber silk slip degree. Therefore, high quality carbon fiber products, not only have clear lines, but also have a good sense of hand.
Of course, some carbon fibers have no texture. For example, medical carbon fiber board is made by unidirectional carbon fiber cloth hot pressing and processing, so we need to see its performance. Carbon fiber density is 1.7g/cm^3, the strength of 3000MPa (carbon fiber reinforced resin composite strength is about 1500MPa), strength high modulus, thermal expansion coefficient is 1.4× 10^-6, X – ray high transmittance. In contrast, the density of the steel is 7.85g/cm^3, the tensile strength is 300~600MPa, the density of the aluminum is 2.7g/cm^3, and the tensile strength is 110~136MPa.
Because the process of making carbon fiber is complex and the cost of its material is expensive, it is likely that the price of carbon fiber products, which is very cheap, is probably false. There is a kind of carbon fiber sticker on the market, on the surface of the carbon fiber woven lines, the actual material is PU, and the use of glass fiber to counterfeit carbon fiber.
Shenzhen CN Technology Co.,Ltd is a professional manufacturer and distributor of carbon fiber products. Such as roll wrapped carbon fiber tubes,Hot press carbon fiber sheets,CNC carbon fiber cutting,carbon fiber chamfered.