Carbon Fibre Filled Radiation Absorbing Nonwovens

Resumo

The dependence of electromagnetic radiation reflection coefficient of nonwovens on the content in them of carbon fibres cut to various lengths is studied. A technique for inserting electroconductive carbon fibres, which ensures formation of an intermediate layer of these fibres between fabrics from dielectric fibres, is described. The frequency dependence of the reflection coefficient on the intermediate layer composition and carbon fibre cut length for fabrics and multilayered materials obtained by joining fabrics is determined. It is shown that the multilayered materials are of interferential-absorptive type, but are also capable of absorbing low-frequency electromagnetic radiation.