| 改性PDMS膜的制备与渗透蒸发分离性能研究 |
| |
| 引用本文： | 方志平,冯海锋,吴洪,姜忠义. 改性PDMS膜的制备与渗透蒸发分离性能研究[J]. 天津工业大学学报, 2005, 24(5): 28-32 |
| |
| 作者姓名： | 方志平 冯海锋 吴洪 姜忠义 |
| |
| 作者单位： | 天津大学化工学院，天津大学化工学院，天津大学化工学院，天津大学化工学院 天津300072中国石油化工股份有限公司科技开发部，北京100029，天津300072，天津300072，天津300072 |
| |
| 摘 要： | 从增强疏水性和亲苯性的角度制备了两种PDMS的改性膜:甲基嵌段PDMS膜及PMPhS膜。红外光谱(FTIR)分析表明,甲基嵌段PDMS膜与PDMS膜化学结构相同,而PMPhS中含有苯基。接触角测量结果表明,改性膜的亲苯性和疏水性均增强。采用扫描电子显微镜(SEM)和原子力显微镜(AFM)观察了膜的表面形态结构,确认其改性膜的渗透蒸发分离性能优于未改性膜。PMPhS(JHG-GT-1)膜的通量和分离因子分别达到293g/(m~2·h)和4220,高于文献值。
|
| 关 键 词： | PDMS膜 甲基嵌段PDMS膜 PMPhS膜 渗透蒸发 苯 |
| 文章编号： | 1671-024X（2005）05-0028-05 |
| 收稿时间： | 2005-07-05 |
| 修稿时间： | 2005-07-05 |
Study on preparation, osmotic pervaporation and separation performances of modified PDMS membranes |
| |
| FANG Zhi-ping. Study on preparation, osmotic pervaporation and separation performances of modified PDMS membranes[J]. Journal of Tianjin Polytechnic University, 2005, 24(5): 28-32 |
| |
| Authors: | FANG Zhi-ping |
| |
| Affiliation: | FANG Zhi-ping~ |
| |
| Abstract: | Two kinds of modified PDMS membranes, methyl-block-PDMS membrane and PMPhS membrane are prepared in order to improve the hydrophobicity and benzene solubility of membrane. FTIR analysis shows that methylblock-PDMS membrane has the same chemical structure as unmodified PDMS membrane, and that benzyl groups exist in PMPhS membranes. Contact angle measurement indicates modified membranes are more hydrophobic and of higher benzene solubility than unmodified one. Surface morphology of modified membranes is observed by a scanning electron microscopy (SEM) and atomic force microscopy (AFM). Modified membranes show better osmotic pervaporation performances than unmodified one. Flux and separation factors of PMPhS (JHG-GT-1) membrane are 293 g/hom2 and 4220 respectively, which are higher than those reported in literatures. |
| |
| Keywords: | PDMS membrane methvl-block-PDMS membrane PMPhS membrane osmotic pervaporation benzene |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
