线缝对电磁屏蔽服装面料屏蔽效能的影响

摘要

为研究线缝对电磁屏蔽服装面料屏蔽效能的影响,选择不锈钢防辐射织物、多离子导电布、金属网等材料,根据缝纫线种类、缝合方向、缝型种类及不同材料包边处理四个变量设计制作不同的实验样品.利用小窗法屏蔽效能测试系统进行屏蔽效能测试.结果显示:镀银缝纫线的屏蔽效能相比于普通缝纫线更稳定,使用镀银缝纫线屏蔽效果要优于普通缝纫线;沿纬线方向缝合的屏蔽效能低于沿经线方向缝合,要尽量减少其在沿纬线方向的使用;三种缝型的屏蔽效能整体较为接近,包缝的性能最优;在缝型的包边处理中选择不锈钢织物包边更为合适.%To study the influence of seam on shielding effectiveness of electromagnetic shielding clothing material, different experimental samples were designed and made with stainless steel radiation resistant fabric, polyion conductive fabric, and metal net according to four variables, i.e.type of sewing thread, stitching direction, seam type and edge covering with different materials.Measurement of shielding effectiveness was conducted with small window method shielding effectiveness testing system.The result shows that the shielding effectiveness of silver-coated sewing thread is more stable than and superior to that of ordinary sewing thread;the shielding effectiveness of fabric stitched crosswise is inferior to that of fabric stitched engthwise, so it is better to avoid stitching crosswise as far as possible;the shielding effectiveness of the three seam types is roughly approximate, but that of overseam is best;stainless steel fabric is most ideal for edge covering.