《Table 3.Activation energies of permeation for CO2and N2through Pebax1074 mem-brane and its blend me
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《Effect of poly(ethylene glycol) molecular weight on CO_2/N_2 separation performance of poly(amide-12-b-ethylene oxide)/poly(ethylene glycol) blend membranes》
where，P0is the pre-exponential factor，EPthe apparent activation energy for permeation，R the gas constant，and T the temperature.According to DSC data in Table 1，there was also no thermal transition within the temperature range between 35°C and 75°C for Pebax1074，Pebax1074/PEG200 and Pebax1074/PEG400 blend membranes，so their gas permeation characteristics were similar with those of Pebax1074/PEG600 blend membrane，which can also be described by Arrhenius equation.The activation energies of permeation for CO2and N2are listed in Table 2.Because the low molecular weight PEG was beneficial to the gas diffusivity and solubility[23]，its addition into Pebax1074 membrane made the activation energies for CO2and N2smaller than those of Pebax1074.And they both decreased with the increase of PEG molecular weight，which was consistent with the Tgof Pebax1074/PEG blend membranes with low molecular weight PEG as shown in Table 1.
| 图表编号 | XD0042895500 严禁用于非法目的 |
|---|---|
| 绘制时间 | 2019.01.01 |
| 作者 | Shichao Feng、Jizhong Ren、Dan Zhao、Hui Li、Kaisheng Hua、Xinxue Li、Maicun Deng |
| 绘制单位 | State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences、National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences、National Laboratory for Clean Energy, Da |
| 更多格式 | 高清、无水印（增值服务） |
