双层结构碳黑/ABS复合材料的吸波性能

制备了单、双层结构碳黑／ABS复合吸波材料，并对其在8～12GHz频段内的吸波性能进行了研究，比较了两种结构以及不同组合双层结构的吸波效能。结果表明：双层碳黑／ABS的吸波性比单层结构有明显改善。双层结构设计参数对吸波性能也有不同程度的影响，当吸收层参数一定时，用5％碳黑／ABS作为变换层吸波效果略好；当变换层参数一定时，吸收层中碳黑含量30％，或者吸收层厚度增至6mm，双层结构的吸波性能都得到了明显改善。较佳的双层结构组合为：3mm厚含5％碳黑的变换层加6mm厚含30％碳黑的吸收层。

Radar Absorbing Property of Bi-layer Structural Carbon Black/ABS Microwave Absorbing Material

The absorbing properties of single-layer and bi-layer structural carbon black/ABS microwave absorbing material within the frequency range of 8 - 12 GHz were studied. The absorbing properties of bi-layer structure were obviously improved, compared with those of single-layer one. The design parameters of bi-layer had different degrees of effects on absorbing properties. When the parameters of absorbing layer were fixed, the properties of bi-layer structural carbon black/ABS material, with 5% carbon black as transforming layer were relatively good. When the parameters of transforming layer were fixed, the properties of bi-layer structural material were obviously improved if the carbon black content was 30% or the thickness of absorbing layer was 6 mm. The optimum combination of bi-layer structure microwave absorbing material was 3 mm thick transforming layer with 5 % carbon black and 6 mm thick absorbing layer with 30 % carbon black.