Milled Carbon Fiber Powder for Conductive Additives has the advantage of high modulus.

1. The layered structure and high modulus characteristics of carbon fiber
Carbon fiber, a material made of organic fibers carbonized at high temperature, has a unique layered structure and covalent bond connection, which is the source of its high modulus. During the carbonization process, non-carbon elements in organic fibers are gradually removed, leaving a highly oriented carbon atom layer structure. These carbon atom layers are tightly connected by strong covalent bonds, forming a layered structure similar to graphite but with more orderly interlayer orientation. This structure gives carbon fiber an extremely high modulus in the axial direction, that is, the ability to resist deformation.

High modulus is a significant feature of carbon fiber materials, which means that when subjected to force, carbon fiber can maintain good shape stability and is not easy to deform. This feature is crucial for applications that need to withstand high stress and high load, such as aerospace, automobile manufacturing, sporting goods and other fields.

2. High modulus retention and advantages of Milled Carbon Fiber Powder for Conductive Additives
Milled Carbon Fiber Powder for Conductive Additives is a fine granular material obtained by crushing carbon fiber through a special process. Although the particle size is reduced, the basic structure and properties of carbon fiber are retained, especially its high modulus characteristics. When this powder is added to the matrix material as a conductive additive or reinforcement phase, its high modulus advantage is fully demonstrated.

Significantly improve the modulus of the material
The high modulus properties of Milled Carbon Fiber Powder for Conductive Additives allow it to significantly improve the overall modulus of the material when added to the matrix material. This means that the composite material is harder and more durable when subjected to stress, and can withstand greater deformation and load. This feature is particularly important for structural parts that require high strength and high rigidity.

Enhance material stability
The high modulus Milled Carbon Fiber Powder for Conductive Additives can also enhance the dimensional stability and thermal stability of the material. Under temperature changes or stress, the composite material can maintain good shape and dimensional stability and is not prone to deformation or cracking. This feature is crucial for equipment or components that need to work in harsh environments.

Improve material fatigue resistance
The high modulus of Milled Carbon Fiber Powder for Conductive Additives also helps to improve the fatigue resistance of composite materials. Under cyclic loads, the composite material can maintain good mechanical properties and durability and is not prone to fatigue failure. This is of great significance for structural parts that need to withstand alternating loads for a long time.

3. Preparation process of carbon fiber powder
The preparation process of carbon fiber powder is the key link to ensure that its high modulus characteristics are retained and exerted. The main preparation steps and process points of carbon fiber powder will be introduced in detail below.

Raw material selection and pretreatment
The preparation of carbon fiber powder first requires the selection of high-quality carbon fiber raw materials. Polyacrylonitrile (PAN)-based carbon fiber is used as the raw material because it has excellent mechanical properties and carbonization effect. After the raw material selection, pretreatment such as cleaning and drying is required to remove surface impurities and moisture to ensure the smooth progress of subsequent processing.

Carbonization treatment
Carbonization is one of the key steps in the preparation of carbon fiber. The pretreated carbon fiber is placed in a high-temperature furnace and subjected to high-temperature carbonization treatment under the protection of an inert gas (such as nitrogen). The carbonization temperature is usually controlled between 1000-3000℃ and adjusted according to the required carbon fiber performance and purpose. During the carbonization process, the non-carbon elements in the organic fiber are gradually removed, leaving a highly oriented carbon atom layer structure to form carbon fiber.

Crushing and grinding
Carbonized carbon fibers are usually in the form of long fibers. In order to meet the needs of specific applications, they need to be crushed into fine particles. The crushing process can be carried out by mechanical crushing, air flow crushing and other methods. Grinding is to further improve the fineness and uniformity of the carbon fiber powder, usually using equipment such as ball mills and vibration mills. Through crushing and grinding, carbon fiber powder with uniform particle size and good dispersion can be obtained.

Surface treatment and modification
In order to improve the compatibility and bonding between carbon fiber powder and matrix materials, it can be surface treated and modified. Surface treatment can be carried out by chemical treatment, physical treatment or plasma treatment to improve the surface activity and wettability of carbon fiber powder. Modification is to change the surface properties and chemical structure of carbon fiber powder by adding specific additives or performing chemical grafting and other reactions to make it better meet the needs of specific applications.