Preparation and electromagnetic shielding properties of flexible MXene/WPU@PET composite fabric  

柔性MXene/WPU@PET复合织物的制备及其电磁屏蔽性能研究

作　　者：ZHANG Xu LIU Xuejiao YAN Yehai 张旭;刘雪姣;闫业海(青岛科技大学高分子科学与工程学院,山东青岛266042)

机构地区：[1]School of Polymer Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042

出　　处：《合成纤维工业》2025年第1期57-60,共4页China Synthetic Fiber Industry

摘　　要：A two-dimensional transition metal carbide/nitride/carbonitride(MXene)and waterborne polyurethane(WPU)were uniformly mixed to form an MXene/WPU coating,which was loaded on polyethylene terephthalate(PET)fabric through blade coating to prepare an MXene/WPU@PET composite fabric with electromagnetic shielding properties.The micro-morphology and composition,surface wettability,tensile properties,electrical conductivity,and electromagnetic shielding properties of the composite fabric were studied.The results showed that the MXene/WPU@PET composite fabric exhibited the cha-racteristics of flexibility and firmness,and a unit area load capacity of MXene/WPU was 1.9 mg/cm^(2),the conductivity 760 S/m,and the electromagnetic shielding effectiveness up to 42 dB(8.2-12.4 GHz);and this convenient and effective method can be used to prepare lightweight and flexible electromagnetic shielding materials,promising broad application prospects in the field of wearable products.将二维过渡金属碳化物/氮化物/碳氮化物(MXene)和水性聚氨酯(WPU)均匀混合形成MXene/WPU涂层,然后通过刮涂方法将其涂覆在聚对苯二甲酸乙二醇酯(PET)织物上,制备了具有电磁屏蔽性能的MXene/WPU@PET复合织物,研究了MXene/WPU@PET复合织物的微观形貌及组成、表面润湿性、拉伸性能、导电性能及电磁屏蔽性能。结果表明:MXene/WPU@PET复合织物表现出柔韧、坚固的特点,MXene/WPU的单位面积负载量为1.9 mg/cm^(2),电导率达到760 S/m,电磁屏蔽效能高达42 dB(8.2~12.4 GHz);这种方法简便有效,可用于制备轻质柔性的电磁屏蔽材料,在可穿戴产品中具有广阔的应用前景。

关 键 词：electromagnetic shielding MXene water-based polyurethane conductive fabric blade coating 

分 类 号：TQ342.21[化学工程—化纤工业]