Absorbing material is a material that can absorb electromagnetic waves projected on its surface. At present, there are quite a lot of applications in various fields. For this type of material treatment, it is necessary to maintain a good wave-absorbing ability, and at the same time, it must be light in weight and corrosion-resistant. Due to its good absorbing ability, this kind of absorbing material has many uses.
This is mainly due to the current development of technology, and the impact of electromagnetic radiation is still very large in many cases. For example, in the airport, due to the interference of electromagnetic waves, problems such as aircraft delays may occur. Or in hospitals, this kind of electromagnetic radiation may also interfere with the work of various electronic diagnostic and treatment instruments. And these places will use absorbing materials to ensure the normal operation of machinery and equipment. Therefore, the main function of the absorbing material is manifested in the following two aspects:
1. Shield electromagnetic radiation
Generally speaking, electromagnetic radiation will cause direct or indirect damage to the human body through thermal effects, non-thermal effects and cumulative effects. And if the absorbing material is used in electronic equipment, it can absorb the electromagnetic radiation leaked by the equipment. This will eliminate the interference caused by electromagnetic radiation.
2. Device stealth
Since the absorbing material can absorb electromagnetic radiation, it can effectively hide the equipment for electronic countermeasures in modern military. It can be said that this is also a big secret weapon.
This kind of wave-absorbing material mainly uses the electromagnetic energy to propagate from low magnetic to high magnetic permeability in the medium, guided by high magnetic permeability ferrite, and converts electromagnetic energy into heat in a coupling manner, so as to achieve wave absorption. the goal of.
