不锈钢长丝嵌织密度对织物屏蔽效能的影响

摘要

探讨棉不锈钢长丝合股纱嵌织密度及电磁波辐射角度对棉不锈钢长丝嵌织织物屏蔽效果的影响.测试了不同棉不锈钢长丝合股纱纬密及不同电磁波入射角度条件下织物的屏蔽效果.测试结果表明:织物屏蔽效能随着棉不锈钢长丝合股纱嵌织密度的增大而增大,在达到临界值后基本稳定不变；织物电磁透过率随着电磁入射角度的变化呈余弦平方曲线变化.指出:实际生产中,在保证织物屏蔽效果的基础上,应合理选择金属纤维纱线嵌织密度以节省原料；尽量在织物经纬向都加入金属纤维纱线以达到理想的屏蔽效果.%Effect of cotton stainless steel filament ply embedded density and electromagnetic wave incident angle on fabric electromagnetic shielding efficiency was discussed. Fabric electromagnetic shielding efficiency was tested in conditions of different cotton stainless steel filament ply weft density and different electromagnetic wave incident angle. The test result shows that fabric electromagnetic shielding efficiency is increased as cotton stainless steel filament ply density increases, after reaching critical value the shielding efficiency is basically the same. Fabric electromagnetic transmission is changed following cosine squared curve as electromagnetic wave incident angle changes. It is pointed out that in practical production, on the basis of ensuring fabric electromagnetic shielding effectiveness, metallic fiber yarn embedded density should be selected rationally to save raw material. Metallic fiber yarn should be added both weft and warp to reach e-lectromagnetic shielding effectiveness.