CAJ | 학술논문

通过化学改性的方法以氯甲基辛基醚（CMOE）、1-甲基咪唑（MIm）和聚醚砜（PES）为材料制备了咪唑鎓化聚醚砜（ImPES），并以其为分离层，聚丙烯（PP）为支撑层制备了用于CO2分离的固定载体复合膜。考察了咪唑鎓化程度、聚合物浓度、操作温度和压力对ImPES/PP复合膜性能的影响。结果表明，咪唑鎓化程度（DIm）对复合膜的性能影响最大，随着咪唑鎓化程度的提高，特别是当DIm大于50%后，复合膜对CO2的分离性能有很大提高。当取代度DIm为64%、聚合物质量分数为20%、测试温度为30℃、压力为0.4MPa时，ImPES/PP复合膜的纯CO2渗透速率为23.92GPU，CO2/N2理想分离因子为65.34。
통과화학개성적방법이록갑기신기미（CMOE）、1-갑기미서（MIm）화취미풍（PES）위재료제비료미서옹화취미풍（ImPES），병이기위분리층，취병희（PP）위지탱층제비료용우CO2분리적고정재체복합막。고찰료미서옹화정도、취합물농도、조작온도화압력대ImPES/PP복합막성능적영향。결과표명，미서옹화정도（DIm）대복합막적성능영향최대，수착미서옹화정도적제고，특별시당DIm대우50%후，복합막대CO2적분리성능유흔대제고。당취대도DIm위64%、취합물질량분수위20%、측시온도위30℃、압력위0.4MPa시，ImPES/PP복합막적순CO2삼투속솔위23.92GPU，CO2/N2이상분리인자위65.34。
Imidazolium-functionalized polyethersulfone (ImPES), a material for CO2 separation, was successfully synthesized. Subsequently, a fixed-carrier composite membrane was prepared with ImPES as the active layer and Polypropylene (PP) micro-filtration membrane as the support layer. The effects of degree of Imidazolium (DIm), ImPES concentration, test temperature and pressure on the performance of the membrane were investigated. Measurements carried out with humid feed revealed the performance of ImPES/PP membrane was improved with the increase of DIm. ImPES/PP membrane sample of 64%DIm and 20%ImPES concentration showed a CO2 permeation rate of 23.92 GPU and a CO2/N2 ideal separation factor of 65.34 in the test conditions of 30℃ and 0.4MPa.