Exploration of the Relationship between Density and Absorption Performance of Carbon Fiber Absorbing Materials

Carbon fiber absorbing materialDue to its lightweight, high strength, and excellent absorption performance, it has received widespread attention in fields such as aviation and aerospace. Density, as an important factor affecting material properties, is particularly important for carbon fiber absorbing materials. This article aims to explore the relationship between the density of carbon fiber absorbing materials and their absorbing properties, and analyze it through experimental data.

Research background

With the continuous improvement of electromagnetic compatibility requirements, it is necessary to find a material that can meet the structural strength requirements and has good absorption ability. Carbon fiber absorbing materials stand out with their unique performance advantages, but there is currently insufficient research on how to optimize the absorbing effect by adjusting the material density.

Experimental Design and Methods

This study was conducted byAdvanced Institute (Shenzhen) Technology Co., LtdWe provided technical support and selected Yanbo brand carbon fiber absorbing materials as the research object. By changing the content of carbon fiber and using different chemical doping methods, samples with different densities were prepared. Subsequently, the absorption performance of these samples was tested under specific conditions.

Result and Analysis

Through testing the absorption performance of carbon fiber absorbing materials with different densities, we found that:

• Under the same conditions, those with lower densityCarbon fiber absorbing materialShow better absorption performance. This is because lower density means more pore space, which can provide more paths for power supply magnetic wave attenuation, thereby enhancing the absorption effect.
• However, as the density further decreases, the overall strength of the material will also decrease, which may affect the practical application of the material. Therefore, when designing carbon fiber absorbing materials, it is necessary to find a balance point that ensures sufficient absorbing performance while maintaining necessary mechanical strength.
• Further research has shown that by using new carbon materials such as spiral carbon fibers or carbon nanotubes, the absorption performance can be further improved while maintaining a lower density. These new materials, due to their unique structural characteristics, can achieve better absorption effects without sacrificing material strength.

data comparison

In a typical experiment, researchers compared three types of carbon fiber absorbing materials with densities of 1.5g/cm ³, 1.7g/cm ³, and 1.9g/cm ³, respectively. The results show that in the frequency range of 1GHz to 3GHz, the sample with a density of 1.5g/cm ³ has the lowest reflectivity, indicating that the material has better absorption performance under low-density conditions. In the high frequency range (8GHz to 10GHz), samples with a density of 1.9g/cm ³ exhibit better absorption performance.

conclusion

in summary,Carbon fiber absorbing materialThe density has a significant impact on its absorption performance. Properly reducing the material density can help improve the absorption performance, but at the same time, attention should be paid to maintaining the mechanical strength of the material. Future research can continue to explore how to further optimize the absorption performance of carbon fiber absorbing materials by improving material structures or introducing new carbon materials.

The above data is for reference only, and specific performance may vary due to production processes and product specifications.