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利用静电纺丝法制备了含有不同质量分数(0、1%、3%、5%)有机改性蒙脱土(O/MMT)的聚丙烯腈复合纳米纤维膜,通过亚甲基蓝吸附分析比较了纤维膜的吸附性能。利用粘度、电导率、表面张力分析了MMT的含量对纺丝液性质的影响,利用扫描电子显微镜分析了不同比例O/MMT的加入对所制备的复合纳米纤维的形貌结构的影响,傅里叶变换红外光谱分析结果证实了O/MMT和PAN形成了纳米复合结构,同时借助热重分析仪分析了O/MMT的加入对复合纳米纤维膜热性能的影响。结果表明,随着O/MMT含量的增加,纤维变细、珠节增加,纤维膜的亚甲基蓝吸附能力也同时提高。
Polyacrylonitrile nanofibers with different mass fraction (0, 1%, 3%, 5%) of organically modified montmorillonite (O / MMT) were prepared by electrospinning method and compared with methylene blue adsorption analysis Membrane adsorption properties. The influence of the content of MMT on the properties of the spinning solution was analyzed by using the viscosity, conductivity and surface tension. The influence of different ratios of O / MMT on the morphology of the prepared composite nanofibers was analyzed by scanning electron microscopy. The results of leaf-transform infrared spectroscopy confirmed that O / MMT and PAN formed nanocomposites, and the effect of O / MMT addition on the thermal properties of the composite nanofibrous membranes was also analyzed by thermogravimetric analyzer. The results showed that with the increase of O / MMT content, the fibers became thinner and the number of beads increased, and the methylene blue adsorption capacity of the fiber membrane also increased at the same time.