Abstract:

In order to obtain anti-electromagnetic radiation fabric with wave-absorbing characteristics, the polypyrrole/cotton fabrics were fabricated by in situ polymerization. Based on the analysis of the influence of the preparation parameters on the electromagnetic shielding effectiveness (EMSE) tested by the flange coaxial method and the style of the fabric analyzed by KES-FB aystem, the optimum process parameters were obtained. Meanwhile, the influence of fabric conductivity, thickness, electromagnetic frequency and surface hole area on the EMSE of polypyrrole/cotton composite fabric was nanlyzed. The EMSE prediction model of polypyrrole/cotton composite fabric and the fabric with holes in the surface is established. The results show that with the increase of the conductivity and the thickness, the EMSE of the composite fabric increases, and the EMSE presents a falling tendency with the increase of the frequency of electromagnetic wave. The aperture size has remarkable influence on EMSE of fabrics.

Key words: anti-electromagnetic radiation fabric, polypyrrole/cotton composite fabric, electromagnetic shielding effectiveness, prediction model