Hardness analysis of carbon fiber tubes

Carbon fiber tube is a common product among carbon fiber products. It is basically used to replace traditional metal tubes in equipment. It is widely used in aerospace, industrial production, sports equipment and other fields. In this article, Boshi Xiaobian will make a simple analysis of the hardness of carbon fiber tubes to facilitate everyone to have a better understanding of it.
Carbon fiber precursor is obtained by pre-oxidation and carbonization of other fibers, and carbon tube is formed by pultrusion and winding of precursor. There is no texture on the surface of the drawn tube, which is relatively less used. The winding tube can be made into twill tube and plain tube according to different processes, and the appearance is beautiful. Carbon fiber tube has a wide range of uses. It can be used for fishing rods, rackets, golf clubs, sailboat masts, flagpoles, and can also be made into parts and scaffolding on machinery.
Carbon fiber, as a new type of artificial synthetic material, is essentially an inorganic polymer fiber with a carbon content of more than 90%. From a microscopic structure, carbon fiber is similar to artificial graphite, which is a chaotic layer graphite structure. And carbon fiber, a synthetic material, has also fully inherited the mantle of carbon element. Generally, after high-temperature 3000℃ petrification treatment, the density can reach 2.0g/cm3. In addition, it is very light. Its specific gravity is lighter than aluminum, less than 1/4 of steel, and its specific strength is 20 times that of iron. In view of its light weight, high rigidity, heat resistance and corrosion resistance, it has been widely valued in both military and civilian applications and is known as the king of new materials.
The hardness of carbon fiber tubes basically comes from epoxy resin. Composite materials will wrap the fibers, whether the fibers are carbon fibers, aramid fibers or glass fibers. For example: the Mohs hardness of glass is 6.5-7, but the composite material made of glass fiber cannot be judged by the Mohs hardness of glass fiber, but by the lower hardness epoxy resin. The same principle of carbon fiber, if you want to increase the hardness of the product, you can choose epoxy resin with higher wear resistance and higher strength. The highest hardness can increase the Bacol hardness of the epoxy system from 45 to 65-70.
The above is an interpretation of the knowledge about the hardness of carbon fiber tubes. In terms of improving product performance, carbon fiber tubes can be chosen to replace traditional metal tubes to obtain better performance advantages and enhance product competitiveness.