现代纺织技术2025，Vol.33Issue(5)：47-55,9.DOI:10.19398∕j.att.202407015
MXene复合棉织物的电磁屏蔽效能与传感性能
Electromagnetic shielding effectiveness and sensing performance of MXene composite cotton fabrics
摘要
Abstract
To study the influence of different fabric parameters on the electromagnetic shielding effectiveness and sensing performance of MXene composite cotton fabrics,cotton fabrics with different densities,weaves and layers were prepared by a small sample loom,and MXene was loaded by impregnation to prepare MXene composite cotton fabrics.The loading capacity,sheet resistance,electromagnetic shielding effectiveness and sensing performance were systematically tested and analyzed.The results show that with the increase of fabric density,the MXene loading increases,and the pore size gradually decreases.The smaller the pore size of the fabric,the better the shielding performance.Too large or too small pore size will lead to a decrease in ΔR/R0.When the warp density of the cotton fabric increases from 320 roots/10cm to 640 roots/10cm,the load of MXene in the composite fabric increases from 0.004 g to 0.019 g,and the sheet resistance decreases from 101.8 Ω/sq to 27.5 Ω/sq.In the range of 12-18 GHz,the maximum electromagnetic shielding effectiveness increases from 25.14 dB to 44.86 dB,but the relative change rate of resistance ΔR/R0 increases from 0.71 to 1.76 and then decreases to 0.42. By analyzing the shielding effectiveness of the structural organization of the woven fabrics,it was also pointed out that the number of warp and weft interweaving points and the length of the floating long lines of the woven fabrics have a significant impact on the shielding effectiveness.Shorter floating long lines and low porosity contribute to the improvement of shielding effectiveness.Excessive porosity will lead to the leakage of electromagnetic waves and the reduction of conductive paths,which in turn leads to the reduction of fabric shielding effectiveness and ΔR/R0 respectively.When the fabric weaves are plain,twill and satin,the load of MXene in the composite fabric decreases slightly,and the sheet resistance increases gradually.The electromagnetic shielding effectiveness decreases from 44.86 dB to 38.50 dB,and the ΔR/R0 decreases from 0.42 to 0.14.The increase in the number of fabric layers will lead to an increase in the thickness of the fabric,making it difficult for MXene to enter the interior of the fabric structure by impregnation,which in turn leads to a decrease in the average loading quality and affects the electromagnetic shielding effectiveness of the fabric.In addition,the double-layer fabric is easy to produce resonance phenomenon,which leads to a significant decrease in shielding effectiveness.When the layer of tge fabric increases from one to three,the load of MXene in the composite sample decreases from 0.019 g to 0.008 g and then increases to 0.013 g.The square resistance increases from 27.53 Ω/sq to 73.93 Ω/sq and then decreases to 29.46 Ω/sq.The maximum electromagnetic shielding effectiveness decreases from 44.86 dB to 31.08 dB and then increases to 39.28 dB,and ΔR/R0 decreases from 0.42 to 0.06. Fabrics with different parameters have different pore sizes,compactnesses and thicknesses,which affect their loading of MXene,and will also lead to different leakages of electromagnetic waves by composite cotton fabric samples,which will eventually lead to differences in sheet resistance,electromagnetic shielding effectiveness and sensing performance.The research work of this paper can provide experimental reference for the development of MXene-based functional textiles,and contribute to the development of flexible electromagnetic shielding products and mechanical sensor devices.关键词
MXene/棉织物/方阻/电磁屏蔽/拉伸传感Key words
MXene/cotton fabric/sheet resistance/electromagnetic shielding effectiveness/stretch sensing分类
轻工业引用本文复制引用
李雅婷,关福旺,刘立鹏,陈力群,林乃波..MXene复合棉织物的电磁屏蔽效能与传感性能[J].现代纺织技术,2025,33(5):47-55,9.基金项目
福建省自然科学基金面上项目(2023J01906) （2023J01906）
