聚酰亚胺/聚酰胺-胺复合膜的制备及其对CO_2的分离性能  

Preparation of polyimide/polyamide-amine composite membrane and its CO_2 separation property

作　　者：马诚[1] 孔瑛[1] 孙海翔[1] 杨金荣[1] 张玉忠[2] 

机构地区：[1]中国石油大学(华东)重质油国家重点实验室,山东青岛266555 [2]天津工业大学中空纤维膜材料与膜过程省部共建国家重点实验室培育基地,天津300160

出　　处：《天津工业大学学报》2011年第6期1-4,共4页Journal of Tiangong University

基　　金：教育部创新团队项目基金资助(IRT0759);中央高校基本科研业务费专项资金资助(27R0904077A);山东省自然科学基金项目(ZR2010BQ026);青岛市科技计划基础研究项目(10-3-4-13-2-jch)

摘　　要：以乙二胺(EDA)为引发核,通过发散法合成1.0～3.0代树枝状聚合物聚酰胺-胺(PAMAM),并以其作为功能涂覆层制备聚酰亚胺(PI)/PAMAM复合膜,考察PAMAM代数对纯CO2、N2及CH4在复合膜中渗透及CO2/N2、CO2/CH4分离性能的影响.结果表明:PAMAM对CO2有明显的选择透过能力,PI/PAMAM复合膜对纯CO2的透过系数及CO2/N2、CO2/CH4的分离系数随PAMAM代数的增加而增大;当涂覆层为3.0代PA-MAM时,复合膜对CO2的渗透系数达到106.6 Barrer,CO2/N2、CO2/CH4分离系数分别达到44.25和58.83.The 1.0-3.0 generation of dendrimers polyamide-amine （PAMAM） are synthesized through divergent methods with ethylenediamine （EDA） as the initiator core. The PAMAM are casted on the surface of polyimide （PI） membrane as a positive layer to prepare CO2 facilitated transport PI/PAMAM composite membrane. The generation effect of PAMAM on pure CO2, CH4 and N2 permeability and the separation factor of CO2/N2, CO2/CH4 are also studied. The results show that： PAMAM could enhance the perm-selectivity of CO2 apparently and the separation factors of CO2/N2, CO2/CH4 increase with the increasing generation of PAMAM; when the coating layer of PAMAM reaches 3.0 generation, the permeability coefficient of CO2 in the composite membrane is 106.6 Barter, while the separation factors of COg/N2, CO2/CH4 reach 44.25 and 58.83, respectively.

关 键 词：聚酰亚胺 聚酰胺-胺 促进传递膜 CO2渗透性能 气体分离性能 

分 类 号：TS102.528.1[轻工技术与工程—纺织工程] TQ028.8[轻工技术与工程—纺织科学与工程]