桥接聚甲基硅氧烷/乙基纤维素/ZSM-5三元复合膜的制备及气体分离性能研究  

Preparation and gas permoselectivity of BBPMS/EC/ZSM-5 ternary composite membrane

作　　者：马文强 徐双平 贾宏葛 徐靖宇 刘达 张明宇 蘧延庆 周海亮 张羽舒 杨国兴[3] 赵雯雯 王馨甜 查雨欣 Ma Wenqiang;Xu Shuangping;Jia Hongge;Xu Jingyu;Liu Da;Zhang Mingyu;Qu Yanqing;Zhou Hailiang;Zhang Yushu;Yang Guoxing;Zhao Wenwen;Wang Xintian;Zha Yuxin(College of Materials Science and Engineering,Heilongjiang Provinces Key Laboratory of Polymeric Composite Materials,Qiqihar 161006;College of Chemical Engineering,Daqing Normal University,Daqing 163712;Synthetic Resin Laboratory of Daqing Petrochemical Research Center,Daqing 163712)

机构地区：[1]齐齐哈尔大学材料科学与工程学院黑龙江省聚合物基复合材料重点实验室,齐齐哈尔161006 [2]大庆师范学院化学工程学院,大庆163712 [3]大庆化工研究中心树脂研究所,大庆163712

出　　处：《化工新型材料》2022年第8期157-161,共5页New Chemical Materials

基　　金：国家自然科学基金(51103076);黑龙江省高校新世纪优秀人才项目(1253-NCET24);黑龙江省省属高等学校基本科研业务费科研项目(植物性食品加工技术特色学科专项)(YSTSXK201867);齐齐哈尔大学研究生创新科研项目(YJSCX2020058)。

摘　　要：以四氢呋喃(THF)为溶剂,在高速搅拌下辅于超声振荡制备了一系列不同比例的丁二烯桥接聚甲基氢硅氧烷(BBPMS)/乙基纤维素(EC)/ZSM-5三元铸膜液、涂膜制得了一系列BBPMS/EC/ZSM-5三元复合膜。采用红外光谱(FT-IR)和扫描电镜(SEM)对膜的结构进行了表征,通过薄膜拉伸强度测试仪、热失重分析和气体透过仪对膜性能进行了测试。结果表明:制得的三元复合膜表面致密平整、分布均匀、无团聚现象,具有良好的成膜性、耐热性及力学性能;三元复合膜对CO的透过系数达到了822Barrer,是EC/ZSM-5混合基质膜的29.8倍;当BBPMS掺杂量在80%~90%时,BBPMS/EC/ZSM-5三元复合膜的CO/N气体透过分离性能接近Robeson 08年曲线。A series of butadiene-bridged polymethylhydrosiloxane(BBPMS)/ethylcellulose(EC)/ZSM-5 ternary composite membranes were prepared under high speed blend and ultrasonic vibration-assisted in tetrahydrofuran(THF),by using the casting solution method.The structure of the membranes was characterized by FT-IR and SEM.The membranes exhibited good membrane forming ability, heat resistance and mechanical properties.The membranes shown higher permeability of CO,the COpermeability was up to 822 Barrer, increased up to 28.9 times as compared to the previous EC/ZSM-5 membrane.Notably, the COand Npermselectivities of the membranes with the contents of BBPMS at 80%~90% were very close Robeson’s upper bound(2008).

关 键 词：乙基纤维素 丁二烯桥接聚甲基氢硅氧烷 ZSM-5 复合膜 气体分离 

分 类 号：O484.4[理学—固体物理]