A study of electromagnetic shielding effectiveness on multilayer fabric

The shielding effectiveness of electromagnetic shielding fabrics are limited in single layer, shielding effectiveness of multilayer fabrics are not clearly now, this topic in this study. First of all, according to the content of conductive fiber, the organizational structure of the fabrics, woven and knit three parameters, choosing of 50% of silver fiber twill, 50% of silver fiber tabby, 100% of silver fiber twill, 100% of silver fiber Rib four fabrics. Then testing two of the fabrics selected arbitrary collocation by using Shielding Effectiveness Test Box. Finally analysing the influence parameter, the following conclusions are drawn:Implying the increase of SE with increasing conductive fiber as far as 50% of silver fiber twill fabric is concerned. On the contrary, the SE of another fabric bind with silver fiber twill fabric is obviously decreased with the increase of conductive fiber content. In the case of silver fiber content is the same. The combination of different fabrics with twill fabric has a higher electromagnetic shielding effectiveness than with plain. The combination of different fabrics with knitted fabrics, the electromagnetic shielding effectiveness is higher than with woven fabrics. The topic reveals the change rule of multilayer shielding effectiveness of electromagnetic shielding fabrics, and giving an important reference value in the design and production of electromagnetic shielding clothing.