三维多元组合电磁防护织物研究与开发

Research and Development of Three-dimensional Multi-component Electromagnetic Protective Fabric

为了解决涂层与金属镀膜不耐揉折、易脱落、不持久问题,利用剪切液均匀分散金属粉,采用层间间隔结构填充所得混悬液,达到了增强织物电磁防护功能的目的。主要原料为涤纶/不锈钢混纺纱,组织结构为三层间隔自身接结,表、中、里经纬纱排列比均为1∶1∶1。对原试样、充填剪切液试样、充填混悬液试样进行中心频率为2450MHz电磁防护性能测试:原样经纬向屏蔽效能分别为55.82、36.75dB;剪切液对电磁屏蔽性能没有影响;充填混悬液试样经纬向屏蔽效能分别为66.22、40.42dB。增强了织物的电磁防护功能,解决了涂层带来的困扰。

In order to solve the problem that the coating and the metal coating were not resistant to collapse,easy to fall off,and not persistent,the metal powder was uniformly dispersed with the shearing liquid,and the obtained suspension was filled by the interlayer spacing structure to enhance the electromagnetic protection function of the fabric.The main raw material was polyester/stainless steel blended yarn.The structure was three-layer interval self-bonding.The warp and weft yarn arrangement ratio of surface,middle and inner layer was 1∶1∶1.The original sample,the filled shear liquid sample,and the filled suspension sample were tested for electromagnetic protection at a center frequency of 2 450 MHz:the latitude and longitude shielding effectiveness of original sample was 55.82 dB and 36.75 dB,respectively.The shearing liquid had no effect on the electromagnetic shielding performance.The longitudinal and latitudinal shielding effectiveness of filled suspension samples was 66.22 dB and 40.42 dB,respectively.The electromagnetic protection function of the fabric was enhanced,and the trouble caused by the coating was solved.