雷达伪装用含碳纤维非织造布的开发

介绍了一种用聚丙烯腈基碳纤维、低熔点涤纶纤维和普通涤纶短纤维制作的雷达伪装用非织造布絮片。使用不同质量比的碳纤维和涤纶纤维混合梳理铺层，利用热风法非织造布絮片制作技术制作非织造布，并对其中的碳纤维进行了表面绝缘处理，对所得到的产品的微波吸收性能进行了检测。结果发现，随着碳纤维含量的变化，材料对于8-18GHz电磁波的吸收能力也逐渐变化。当碳纤维含量从100％到0％逐渐变化时，其对雷达波的吸收能力先是缓慢增加，当含量10％左右时，达到最大值，之后，随着碳纤维含量的进一步减少，其吸收能力急剧下降。

Development of carbon fiber containing nonwovens for anti-radar camouflage

A kind of nonwovens produced for anti-radar camouflage with PAN-based carbon fiber, low-melt polyester fiber and common polyester staple fiber is introduced in this paper. In the experiment different weight percentage of carbon fiber and polyester fiber are carded and lald down in producing nonwovens by thermal through-air nonwoven manufacturing process with the carbon fiber surface of the nonwovens in sulated. Microwave absorbing properties of the nonwovens are tested and the result indicates that the microwave absorbing capability of the carbon fiber containing nonwovens varies with the change of the content of carbon fiber in the nonwovens. With the weight percent of the carbon fiber in nonwovens decreases from 100 to 0, the microwave absorbing capability of the nonwovens gradually increases and reaches the maximum value at 10 weight percent. After this point the microwave absorbing capability rapidly decreases with the further decrease of the carbon fiber content.