论文部分内容阅读
采用磁控溅射法在涤纶水刺非织造布表面沉积纳米结构单层膜、双层膜及层状复合薄膜(在织物两面分别沉积薄膜),利用原子力显微镜(AFM)对薄膜的表面形貌进行分析,并利用四探针测试仪和矢量网络分析仪对样品的电学性能进行了测试。结果表明,在总镀膜时间不变的情况下,层状复合薄膜的电学性能明显优于单层膜和双层膜电学性能,Cu层状复合薄膜电学性能要好于Al层状复合薄膜的电学性能;随着Cu镀膜时间的增加,复合薄膜的颗粒均匀性和电学性能都有所提高,当织物两面镀膜时间各为60min时,屏蔽效能达到80dB。
The nanostructured monolayer, bilayer and layered composite films were deposited on the surface of polyester spunlaced nonwovens by magnetron sputtering. The surface morphology of the films was characterized by atomic force microscopy (AFM) The analysis was carried out and the electrical properties of the samples were tested using a four-probe tester and a vector network analyzer. The results show that the electrical properties of the layered composite films are obviously better than that of the monolayer films and the bilayer films when the total coating time is constant. The electrical properties of the Cu layered composite films are better than the electrical properties of the Al layered composite films ; With the increase of Cu coating time, the uniformity and electrical properties of the composite films are improved. When the coating time is 60min on both sides of the fabric, the shielding effectiveness reaches 80dB.