聚[1-(4-三甲基硅基)苯基-2-苯乙炔]/碳纳米管杂化膜的渗透汽化性能  

Pervaperation Performance of Poly[1-(4-trimethylsilyl)phenyl-2-phenylacetylene]/Carbon Nanotube Composite Membranes

作　　者：肖雨 杨威 李战胜[2] 胡雁鸣 周光远 Yu Xiao;Wei Yang;Zhansheng Li;Yanming Hu;Guangyuan Zhou(State Key Laboratory of Advanced Power Transmission Technology,Global Energy Interconnection Research Institute,Beijing 102209,China;Liaoning High Performance Polymer Engineering Center,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China;Division of Energy Materials,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China)

机构地区：[1]全球能源互联网研究院有限公司先进输电技术国家重点实验室,北京102209 [2]大连理工大学化工学院辽宁省高性能树脂工程技术研究中心,辽宁大连116024 [3]中国科学院大连化学物理研究所能源材料部,辽宁大连116023

出　　处：《高分子材料科学与工程》2021年第5期74-78,共5页Polymer Materials Science & Engineering

基　　金：先进输电技术国家重点实验室开放基金(GEIRI-SKL-2018-012)。

摘　　要：采用聚[1-(4-三甲基硅基)苯基-2-苯乙炔](PTMSDPA)为膜材料,与碳纳米管(CNT)杂化制备PTMSDPA/CNTs杂化膜,研究了碳纳米管含量对杂化膜的气体分离、渗透汽化性能的影响。结果表明,PTMSDPA与碳纳米管间π-π相互作用使得碳纳米管在聚合物基体中实现均匀分散。当碳纳米管质量分数为15%时,PTMSDPA/CNTs杂化膜的氧气渗透系数出现极大值(2880Barrers),为PTMSDPA均质膜的2.4倍;操作温度为30℃时,渗透汽化分离丁醇质量分数为1.5%的丁醇/水溶液,PTMSDPA/CNTs杂化膜的渗透通量、丁醇/水分离系数也达到极大值,分别为114g/(m^(2)·h)和69。溶胀吸附实验结果表明,PTMSDPA/CNTs杂化膜的丁醇/水渗透汽化性能主要来源于溶解选择性。Poly[1-(4-trimethylsilyl)phenyl-2-phenylacetylene](PTMSDPA)/carbon nanotube(CNT)composite membranes were prepared,and the effects of CNT content on the gas and pervaporation separation performance were investigated.Theπ-πinteractions between PTMSDPA and CNTs allow the CNTs to disperse homogeneously in the polymer matrix.At the CNT content of 15%,the membrane exhibits the highest oxygen permeability(2880 Barrers),which is 2.4 times of that of PTMSDPA,and for separation of 1.5%butanol/water mixture with this membrane at 30℃,the flux and butanol/water separation factor reaches the highest values of 114 g/(m^(2)·h)and 69,respectively.Swelling adsorption experiments indicate that the pervaporation separation performance of the membranes is originated from solubility selectivity.

关 键 词：聚[1-(4-三甲基硅基)苯基-2-苯乙炔] 碳纳米管 渗透汽化性能 

分 类 号：TQ028.8[化学工程]