论文部分内容阅读
以三氯化铁(FeCl3)为氧化剂,十二烷基磺酸钠(SDS)为掺杂剂,通过原位聚合的方法制备了聚吡咯/海泡石(PPy/SEP)纳米复合材料。研究了吡咯(Py)用量、聚合时间、氧化剂用量以及掺杂剂用量对复合材料电导率的影响,确定了制备导电复合材料的工艺条件。结果表明,在Py用量(以SEP质量计)为25%,聚合温度为0℃,聚合时间为12h,FeCl3/Py摩尔比为2.3/1,SDS/Py摩尔比为1/5的条件下制备的PPy/SEP复合材料电导率为2.15S/cm。采用透射电镜、红外光谱、X射线衍射及热分析表征纳米复合材料的形貌与结构。结果表明,制备的PPy/SEP纳米复合材料为具有核-壳结构的一维纳米复合材料,且PPy以非晶态的形式存在于SEP表面。
Polypyrrole / sepiolite (PPy / SEP) nanocomposites were prepared by in situ polymerization using ferric chloride (FeCl3) as oxidant and sodium dodecyl sulfate (SDS) as dopant. The effects of pyrrole (Py) dosage, polymerization time, amount of oxidant and dopant on the conductivity of the composites were studied, and the process conditions for preparing the conductive composites were determined. The results showed that Py (subscript p) was 25%, the polymerization temperature was 0 ℃, the polymerization time was 12h, the molar ratio of FeCl3 / Py was 2.3 / 1 and the SDS / Py molar ratio was 1/5 PPy / SEP composite conductivity of 2.15S / cm. The morphology and structure of nanocomposites were characterized by transmission electron microscopy, infrared spectroscopy, X-ray diffraction and thermal analysis. The results show that the prepared PPy / SEP nanocomposite is a one-dimensional nanocomposite with a core-shell structure, and PPy is present on the SEP surface in an amorphous form.