沉积铝纳米结构薄膜非织造布的制备和导电性

Preparation and conductivity of the nonwovens deposited with nanostructured aluminum thin films

采用磁控溅射技术在涤纶纺粘非织造布表面制备了铝纳米结构薄膜。运用扫描电镜和原子力显微镜对溅镀后的非织造布表面形貌进行了分析,并对其导电特性进行了测试。结果表明经过溅镀的非织造布仍保持良好的纤维网络结构和孔隙特征;随着沉积时间的延长,非织造布表面铝纳米结构薄膜的致密性、均匀性越来越好,并呈连续覆盖纤维表面的状态,导电性能逐渐提高;当镀层厚度达到100nm时,非织造布电阻为4～6Ω/cm,导电性达到最好。

Nanostructured aluminum thin films were sputtered onto the spunbonded polyester nonwoven substrate by magnetron sputtering technology. The morphology of the coated fabric was examined by scanning electron microscopy （SEM） and atomic force microscopy （AFM）. Its electroconductive property was measured and analyzed. The study revealed that the fibrous structure of the nonwoven substrate kept intact after the sputter coating. It was also found that the increase in the coating time resulted in more compacted and uniform, and higher conductivity of the substrate. The electric resistance reached the lowest （4 ～ 6 Ω/cm） as the thickness of the coated layer increased to 100 nm.