| PEA型聚氨酯膜的制备及渗透汽化苯/环己烷的分离性能 |
| |
| 引用本文： | 叶宏,李继定,林阳政,陈剑,陈翠仙.PEA型聚氨酯膜的制备及渗透汽化苯/环己烷的分离性能[J].高分子材料科学与工程,2009(3):103-106. |
| |
| 作者姓名： | 叶宏 李继定 林阳政 陈剑 陈翠仙 |
| |
| 作者单位： | 清华大学化工系膜技术与工程研究中心; |
| |
| 基金项目： | 国家973项目(2003CB615701);;国家自然科学基金资助项目(20576059,20676067,20736003);;中石化科技开发研究基金(X505002);;国家863计划项目(2007AA06Z317) |
| |
| 摘 要： | 通过溶液聚合的方法,以聚己二酸乙二醇酯(PEA)为软段,不同的二胺、二酐为扩链剂,制备了七种不同硬段结构和含量的聚氨酯膜,并对其结构和热性质进行了表征。考察了不同硬段结构与其渗透汽化苯/环己烷分离性能之间的关系。结果表明,PEA型聚氨酯膜可以有效分离苯/环己烷混合物中的苯,其中以二胺基二苯甲烷(MDA)扩链的聚氨酯膜综合渗透汽化分离性能最佳,对于苯/环己烷(50/50)体系,40℃时硬段含量为21.5%的膜渗透通量为26.35 kg.μm/m2.h,分离因子为6.29。而硬段含量为28.4%的膜渗透通量为9.52 kg.μm/m2.h,分离因子为13.21。
|
| 关 键 词： | 聚氨酯 渗透汽化 膜分离 苯 |
Preparation of PEA-Based Polyurethane Membranes and Their Pervaporation Performances to Benzene/Cyclohexane Mixture |
| |
| YE Hong,LI Ji-ding,LIN Yang-zheng,CHEN Jian,CHEN Cui-xian.Preparation of PEA-Based Polyurethane Membranes and Their Pervaporation Performances to Benzene/Cyclohexane Mixture[J].Polymer Materials Science & Engineering,2009(3):103-106. |
| |
| Authors: | YE Hong LI Ji-ding LIN Yang-zheng CHEN Jian CHEN Cui-xian |
| |
| Affiliation: | Department of Chemical Engineering;Tsinghua University;Beijing 100084;China |
| |
| Abstract: | Seven kinds of polyurethane membranes materials were successfully synthesized with the same soft segment of poly(ethylene adipate)diol(PEA) and different chain extenders including diamine and dianhydride via solution polymerization.The structures and thermal properties of polyurethane membranes were characterized by means of FT-IR,DSC and TGA.Their pervaporation performances to benzene/cyclohexane mixture were also investigated.The results appeare that all the membranes show permeability and selectivity tow... |
| |
| Keywords: | polyurethane pervaporation membrane separation benzene |
| 本文献已被 CNKI 等数据库收录！ |
