Carbon fiber absorbing material

Carbon fiber absorbing material is a material with special functions, which can absorb and convert most of the incident electromagnetic waves into other forms of energy, such as mechanical energy, electrical energy, or thermal energy, thereby achieving stealth or reducing electromagnetic radiation.

characteristic

1. High strength and high modulus: Carbon fiber has the characteristics of high strength and high modulus, which enables it to maintain good stability when subjected to external forces.
2. High temperature and corrosion resistance: Carbon fiber can maintain good performance in high temperature and corrosive environments, and is not easily deformed or damaged.
3. Conductivity and thermal conductivity: Carbon fiber has excellent conductivity and thermal conductivity, which enables it to quickly convert absorbed electromagnetic wave energy into thermal energy and dissipate it.
4. Lightweight: Compared to other metal absorbing materials, carbon fiber has a lower density, which is beneficial for reducing overall weight.

classification

1. Carbon fiber short fibers: Short fibers can serve as absorbers for coating type absorbing materials, forming coatings with absorbing properties by compounding with other materials.
2. Nanocarbon fiber: Nanocarbon fiber has a higher specific surface area and better conductivity, which can more effectively absorb electromagnetic waves. Among them, spiral shaped carbon nanofibers exhibit higher absorption performance due to their unique chiral spiral twisting characteristics.
3. Carbon fiber composite material: Composite carbon fiber with matrix materials such as resin to form composite materials with excellent mechanical and absorbing properties. This material retains the high performance of carbon fiber while optimizing its electromagnetic properties through matrix tuning.

application area

1. Stealth technology: In the military field, carbon fiber absorbing materials are widely used in the research and development of stealth technology, achieving the stealth effect of targets by absorbing electromagnetic wave signals such as radar waves.
2. Electromagnetic shielding: Carbon fiber absorbing materials can be used for electromagnetic shielding in electronic devices and communication systems, reducing the impact of electromagnetic radiation on devices and the human body.
3. Aerospace: In the aerospace field, carbon fiber absorbing materials can be used to reduce the radar cross section of aircraft, satellites, and other spacecraft, improving stealth performance.
4. Communication electronics: In the field of communication electronics, carbon fiber absorbing materials can be used to eliminate electromagnetic interference, improve communication quality and stability.

Preparation process

1. Preparation of carbon fibers: Carbon fibers with specific properties are prepared by chemical vapor deposition, spinning, and other methods.
2. Surface treatment: Surface treatment is applied to carbon fibers to enhance their adhesion and absorption properties with other materials.
3. Preparation of composite materials: Carbon fibers are combined with matrix materials such as resin, and composite materials with excellent properties are prepared through processes such as molding and injection molding.