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采用缩聚反应合成了含氟聚砜(DDS-6FPDA)并用核磁对其结构进行了表征。制备了酸化的多壁碳纳米管,用IR证明其成功合成。以多壁碳纳米管作为无机添加颗粒,含氟聚砜膜作为母体膜制备了0~4%(wt,质量分数,下同)不同含量的复合膜,通过扫描电镜图观察到多壁碳纳米管均匀分散于基体膜中。考察了不同负载量(0~4%)、跨膜压差0.5~1.5MPa以及温度(298~328℃)条件下对CO_2和CH_4的气体渗透性能的影响。
Fluoropolysulfone (DDS-6FPDA) was synthesized by polycondensation reaction and its structure was characterized by NMR. Acidified multiwalled carbon nanotubes were prepared and their successful synthesis was confirmed by IR. Multi-walled carbon nanotubes as inorganic added particles, the fluorine-containing polysulfone membrane as the parent membrane prepared 0 ~ 4% (wt, mass fraction, the same below) different content of the composite membrane, observed by scanning electron microscopy multi-walled carbon nano Tube evenly dispersed in the matrix film. The effects of different loading (0 ~ 4%), transmembrane pressure difference of 0.5 ~ 1.5MPa and temperature (298 ~ 328 ℃) on gas permeability of CO_2 and CH_4 were investigated.