炭黑对无机开孔泡沫吸波材料反射率的影响

Influence on Reflectivity of Inorganic Opencell Foam Waveabsorbing Material from Charcoal

炭黑是在无机开孔泡沫吸波材料制备中一种重要的氧化型发泡剂,同时也是样品制备过程中添加的优良吸波剂,在实验室中制备了炭黑体积含量为0.1%、0.5%、1.5%、2%和3%的泡沫样品,测量了五种样品的介电常数,理论计算了样品在X波段的反射率,并通过试验测量,得出了制备无机开孔泡沫吸波材料时,炭黑含量为3%时性能最好的结论,为材料制备提供了参考依据。

Charcoal is an important oxidation foaming agent in the preparation of inorganic open-cell foam wave-absorbing material. And it is a good wave-absorbing agent added to sample preparation process. The foam samples with different charcoal volume content such as 0.1%, 0.5%, 1.5%, 2%and 3%are prepared at laboratory. The dielectric constant of the five samples is measured and the reflectivity of the samples at X wave band is calcu-lated on theory. Through test measurement, the conclusion is obtained that the best character is got when charcoal content is 3%during the preparation of inorganic open-cell foam wave-absorbing material, which provide reference for material preparation.