High Purity Conductive Carbon Black can be used in absorbing materials, and such absorbing materials are called carbon-based absorbing materials. In addition, there are iron-based absorbing materials, ceramic-based absorbing materials, and other types of materials.
Application of high purity conductive carbon black in absorbing materials
1. The single-layer structure absorbing mineral wool board with acetylene carbon black as the absorbing agent only has good absorbing performance in a narrow frequency band. The way to obtain good absorbing performance in a wide frequency range is to use a multi-layer structure to absorb the waves. wave body.
2. Different absorbing effects can be obtained by adjusting the carbon black content of the matching layer and the absorbing layer. The absorbing performance decreases as the carbon black content in the matching layer increases, and increases as the carbon black content in the absorbing layer increases.
When the high purity conductive carbon black content in the matching layer is 1% and the carbon black content in the absorbing layer is 5%, the reflectivity of the sample is less than –10dB in the range of 2~18 GHz;
When the carbon black content in the matching layer is 1% and the carbon black content in the absorbing layer is 4%, the minimum reflectivity can reach –41.5dB.