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What is the difference between cut carbon fiber and carbon fiber felt?
The main differences between cut carbon fiber and carbon fiber felt are as follows:
1. Morphological structure:
Short carbon fiber is a continuous carbon fiber filament cut into a certain length of short fibers, usually between a few millimeters and tens of millimeters in length, is short and fine fibers, similar to whiskers, the fibers are relatively independent, irregular arrangement.
The main form of carbon fiber felt is felt or mat, which is prepared by layering short fibers by mechanical combing and other methods, and then entangling the fibers with each other by needling and other methods. It belongs to the type of non-woven fabric, and its fiber distribution is relatively messy but forms a flat felt-like structure as a whole.
2. Production process:
The production process of short-cut carbon fiber mainly includes the pre-treatment of the carbon fiber filament, cutting to the required length, possible surface treatment, drying and packaging steps, where cutting is the key step and the length needs to be precisely controlled.
The production of carbon fiber felt must first obtain short fibers, then layer the fibers through mechanical carding, and then bind the fibers together to form felt-like structure through needling and other processes. In the production process, there are certain requirements for the arrangement and entanglement degree of the fibers.
3. Performance characteristics:
Short-cut carbon fiber has some basic characteristics of carbon fiber, such as high strength, high modulus, corrosion resistance, electrical conductivity, etc., but due to the short length and relative independence between fibers, its strengthening effect in composite materials may be more focused on providing a certain strengthening effect in local areas, and the improvement of the overall performance of the material is limited.
The integrity of carbon fiber felt is better, although the performance of its single fiber is similar to that of short carbon fiber, but because of the felt-like structure, it has unique properties in heat insulation, heat preservation, adsorption, etc., and can provide a more uniform performance distribution in some applications, such as as a thermal insulation material, can more effectively block heat transfer.
4. Application field:
Short-cut carbon fiber is usually used as a mixture of plastics, resins, cement, etc., to improve the mechanical properties, wear resistance, electrical conductivity and heat resistance of the matrix, such as in some of the strength and electrical conductivity requirements of the plastic parts, electronic equipment shell and other applications; In recent years, in 3D printing carbon fiber composite materials, cut carbon fiber is also a common reinforcement fiber; In addition, it can also be used in the construction field to strengthen concrete structures.
Carbon fiber felt is mainly used for heat insulation materials, such as in high temperature equipment, pipe heat insulation widely used; It can be used as the substrate of moulded heat insulation material for the manufacture of heat insulation products of specific shapes; In some need of heat and corrosion protection as a protective layer substrate; Because it has certain adsorption properties, it can also be used in some environmental protection fields such as filtration and adsorption
Yancheng Xiangsheng Carbon Fiber Technology Co., Ltd. Registered trademark "Xiangli", is committed to the research of carbon fiber, aramid fiber and other special fiber composite materials functionality and design diversity, It has developed 16 series products with independent intellectual property rights, such as rotorcraft shell, landing gear, aircraft plant protection spray system, seaplane float, swamp boat, aerodynamic boat, aviation communication helmet, carbon fiber for plastic reinforcement, carbon fiber powder for friction materials, short carbon fiber for braking system, as well as carbon fiber rope, carbon fiber cloth, carbon fiber filament special fiber cutting machine.
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