What is the difference between cut carbon fiber and carbon fiber filament?

There are many differences between cut carbon fiber and carbon fiber filament:

Form:

Carbon fiber prefilaments are continuous, slender fibers that have fibrous, soft properties and are usually small in diameter, such as about 1/20 of that compared to a human hair. Carbon fiber can be combined to form carbon fiber tow, tow specifications are 1k, 3k, 6k, 12k, 24k and 48k, etc. (k stands for thousands, that is, the number of carbon fiber tow contained in a cluster).

Chopped carbon fiber is a short fiber made by cutting carbon fiber filament, the length is usually calculated in millimeters, and the shape is like a whisk.

Features:

Carbon fiber is made of high temperature, excellent high temperature resistance, and its strength advantage is very obvious, but the performance is usually limited when it is used alone, and further processing is required.

The mechanical properties of the cut carbon fiber mainly depend on the properties of the carbon fiber filament used. It retains the characteristics of high strength and high modulus of carbon fiber, and because of its short length, it has the advantages of uniform dispersion, diverse feeding methods and simple process when combined with the base material.

Application field:

Because of its high strength, high modulus, low density and other characteristics, carbon fiber can be used in aerospace, sports equipment, medical equipment, construction, military and other fields, often processed into various fabrics or other intermediate products (such as prepreg) after use.

Short-cut carbon fiber can be used in special areas where carbon fiber filaments are not suitable, such as in the field of reinforced modified plastics, which can be mixed with various matrix plastics to make modified carbon fiber engineering plastics; In the field of construction, it can be used to strengthen cement, concrete and other building materials; In the field of electric heating, it can be used to manufacture heating elements; In the field of shielding materials, it can be used to make electromagnetic shielding materials; In the field of new energy, electrode materials can be used to manufacture new energy batteries.

Preparation process:

The preparation process of carbon fiber is more complex, including polymer raw materials (such as polyacrylonitrile, rayon, viscose fiber, etc.) mixed with other materials, pre-oxidation, carbonization and other treatment, and finally form carbon fiber.

The preparation process of cut carbon fiber includes pre-treatment, cutting, surface treatment, drying and packaging steps, among which cutting is the cutting of carbon fiber filament into the required length of short fiber, relatively simple preparation process, and more emphasis on the subsequent processing of carbon fiber filament.

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.