AbsorberThe main components include absorbers and matrix materials. Absorbents provide absorption properties, while matrix materials provide bonding or load-bearing properties,
Magnetic absorbing materialsMainly through the magnetic loss of materials, the energy of incident electromagnetic waves is converted into thermal energy or other forms of energy and dissipated. Electromagnetic waves are mainly absorbed and/or attenuated through mechanisms such as hysteresis loss, magnetic domain resonance, aftereffect loss, and eddy current loss.
Absorption type absorbing materials are materials used to absorb electromagnetic waves, usually made of metal or non-metal materials, and utilize the reflection characteristics of the material surface to eliminate the influence of electromagnetic waves. Its main characteristics are high efficiency, wide bandwidth, low noise, etc., and it has a wide range of applications in fields such as electronics, communication, and automobiles.
Absorption type absorbing materialThe basic principle is to absorb electromagnetic waves through absorbers on the surface of the material, thereby eliminating their impact on electromagnetic waves. Absorbents are generally substances with low viscosity, easy processing, and absorption frequency characteristics. When the surface of the material comes into contact with electromagnetic waves, the absorbent undergoes a chemical change, resulting in physical adsorption, thereby absorbing the electromagnetic waves.
Commonly used absorbing materials include ferrite carbon black composites, ferrite graphite composites, metal nanoparticles conductive polymers, etc. These materials have high absorption frequency and good performance, such as high efficiency, wide bandwidth, low noise, etc.
In practical applications, absorbing materials need to be designed and selected according to specific application requirements. For example, in the field of electronics, absorbing materials can be used to eliminate the influence of high-frequency signals; In the automotive field, absorbing materials can be used to eliminate the influence of low-frequency signals; In the medical field, absorbing materials can be used to eliminate the influence of high-frequency signals; In the military field, absorbing materials can be used to eliminate the influence of low-frequency signals.
In addition to the common applications mentioned above, there are also some special requirements such as low density, high performance, high toughness, etc. These requirements need to be designed and selected according to specific applications. At the same time, the design and application of absorbing materials also need to consider issues such as environmental protection and human health.
With the continuous development of technology and the increasing demand for applications, absorbing materials will continue to play an important role in the future.
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