UC知道…………麻烦帮翻一下一段英文，多谢…………
来源：百度知道 编辑：UC知道 时间：2024/07/02 23:09:20
MCM-48 membranes and powders were successfully modified with a polymer, polyethyleneimine (PEI) containing amino groups as confirmed by N2
adsorption-desorption data, X-ray diffraction, Thermo gravimetric analysis (TGA), and N2 unsteady-state permeation experiments. The PEI/MCM-48 membranes were permeable to N2 after pore modification, suggesting incomplete filling of MCM-48 pores by PEI, which was confirmed by the N2 adsorption-desorption experiments on the bulk PEI/MCM-48 powder. The PEI-modified MCM-48 membranes were highly selective to N2 permeation from N2/CO2 mixtures at room temperature in the presence of _2.6% water vapor. Binarygas N2/CO2 permeation data for the PEI-modified MCM-48 membranes showed much-higher N2 permeance as compared to CO2 permeance in the presence of water vapor. The selectivities increased with CO2
concentration in the feed, and selectivities greater than 80 were observed. The N2/CO2 selectivities diminished significantly at 363 K for the PEI/MCM
adsorption-desorption data, X-ray diffraction, Thermo gravimetric analysis (TGA), and N2 unsteady-state permeation experiments. The PEI/MCM-48 membranes were permeable to N2 after pore modification, suggesting incomplete filling of MCM-48 pores by PEI, which was confirmed by the N2 adsorption-desorption experiments on the bulk PEI/MCM-48 powder. The PEI-modified MCM-48 membranes were highly selective to N2 permeation from N2/CO2 mixtures at room temperature in the presence of _2.6% water vapor. Binarygas N2/CO2 permeation data for the PEI-modified MCM-48 membranes showed much-higher N2 permeance as compared to CO2 permeance in the presence of water vapor. The selectivities increased with CO2
concentration in the feed, and selectivities greater than 80 were observed. The N2/CO2 selectivities diminished significantly at 363 K for the PEI/MCM
MCM-48膜和粉末顺利地修改了与聚合物，包含氨基的polyethyleneimine (PEI)如证实由N2
adsorption-desorption数据、X光衍射、热重力分析(TGA)和N2不平稳状态渗透过程实验。 PEI/MCM-48膜是有渗透性的对N2在毛孔修改以后，建议MCM-48毛孔残缺不全的装填由PEI，由在大块PEI/MCM-48粉末的N2吸附解吸附作用实验证实。 PEI修改过的MCM-48膜是高度有选择性的对从N2/CO2混合物的N2渗透过程在室温在_2.6%水蒸气面前。 Binarygas N2/CO2渗透过程数据为PEI修改过的MCM-48膜显示了更高的N2渗入与二氧化碳渗入比较在水蒸气面前。 选择性增加了与二氧化碳 在饲料的伟大concentration和选择性比80被观察了。 N2/CO2选择性极大减少了在363 K PEI/MCM-48膜的。