Absorbing materials are a type of material that can absorb electromagnetic wave energy within the frequency range of electromagnetic waves. They are widely used in fields such as electromagnetic wave stealth, lightning protection, and electromagnetic wave environmental control. and
Corrugated core structure absorbing materialAs a new type of absorbing material structure, it has unique absorbing properties and broad application prospects. This article will deeply analyze the corrugated core structure absorbing materials from the aspects of production method, absorbing performance, and advantages.
1、 The production method of corrugated core structure absorbing material
The production method of corrugated core structure absorbing material is similar to that of honeycomb structure, which can be achieved by coating absorbing material or directly using absorbing composite material to make corrugated plate structure. By adjusting the geometric parameters of the corrugated structure, the absorption performance of the material can be effectively adjusted. In addition, the combination of foam core structure and corrugated plate structure can not only reduce the mass of materials, but also further improve the wave absorption effect.
2、 The absorption performance of corrugated core structure absorbing materials
The corrugated core structure absorbing material, due to its special corrugated plate structure, allows electromagnetic waves to be absorbed multiple times inside the structure, thereby achieving a good absorbing effect. For example, the composite corrugated plate made of epoxy resin/glass fiber and fishbone shaped copper wire can achieve broadband absorption (5.74~7.84 GHz) below the transmission belt (8.96~12.45 GHz) by filling the channel with polymethyl acrylate (PMI) foam. The absorptivity and transmissivity are both greater than 80%, and the addition of foam significantly improves the mechanical properties of the structure, making the microwave absorption and mechanical properties of the composite reach a double optimization.
3、 Advantages of corrugated core structure absorbing materials
1. Broadband absorption: The absorption bandwidth of corrugated core structure absorbing materials is wide, which can achieve absorption of electromagnetic waves in a wider frequency band and has a wider range of applications.
2. Geometric parameter adjustment: By adjusting the geometric parameters of the corrugated structure, the absorption performance of the material can be flexibly adjusted to meet the electromagnetic wave absorption requirements of different frequency bands.
3. Excellent structure: The wave absorbing material with corrugated core structure adopts the combination of corrugated plate structure and foam core structure, which has good mechanical properties and light weight, and can meet the use requirements in complex environments.
The production method and absorption performance of corrugated core structure absorbing materials have been verified in practice, and experimental results show that they have excellent absorption performance. By adjusting the geometric parameters and sheet resistance of the corrugated structure, not only can broadband absorption of electromagnetic waves be achieved, but the size and position of the absorption peak can also be flexibly adjusted. In addition, corrugated core structure absorbing materials can also meet the needs of complex environments, with good mechanical properties and lightweight characteristics.
Conclusion:
Corrugated core structure absorbing materialAs a new type of absorbing material structure, it has unique absorbing properties and broad application prospects. By adjusting the geometric parameters of the corrugated structure, absorption of electromagnetic waves in different frequency bands can be achieved. At the same time, the excellent structure and lightweight characteristics of corrugated core structure absorbing materials also provide more possibilities for their applications. I believe that with the continuous advancement of technology, corrugated core structure absorbing materials will move towards a better future.
