纳米结构聚苯胺/PVP复合纤维及其气敏传感特性研究

Study on Nanostructural Polyaniline/PVP Composite Fibers and Their Gas-response Behavior

以双氧水为氧化剂在超声环境中制备了具有灵敏化学活性的聚苯胺纳米棒,并与聚乙烯吡咯烷酮溶液复合,通过静电纺丝技术制备了稳定有序纳米结构的纤维。将所制产物放置于特定的化学环境中,对其化学传感特性进行了研究。发现材料的电学行为对被测气体浓度有良好的响应,并对气敏响应的产生机理进行了初步的探讨。

Sensitive chemical active polyaniline （PANI） nanorods were successfully prepared by a sonochemical way with hydrogen peroxide as the oxidant. The blend solution of PANI nanorods and poly （vinyl pyrrolidone） （PVP） was used to produce stable and ordered nanofibers by electrospinning technology. The gas sensitive properties of the composite nanofibers were investigated in a specific chemical environment of CHCl3 and alcohol gases. There was a good response relationship between the electrical behavior of the materials and the concentration of the gas environment. The mechanism cor responding to the gas-response was preliminarily discussed.