采用离子交换法对钠基蒙脱土进行有机化,通过乳液聚合方法制备聚甲基丙烯酸甲酯-丙烯酸/蒙脱土(PMMA-AA/MMT)有机-无机纳米复合材料,用该聚合材料制得渗透汽化膜.通过X光衍射对蒙脱土在PMMA-∞-AA共聚物中的形貌和分布表征,结果表明,蒙脱土片层呈剥离状态分布在有机主体中.考察了该渗透汽化膜在二甲苯体系中的溶胀性能,计算了二甲苯分子在膜中的扩散系数,研究了蒙脱土含量、料液浓度和料液温度对膜渗透汽化分离对二甲苯/邻二甲苯的影响,发现含有适量蒙脱土的渗透汽化膜能够有效抑制膜的过度溶胀,提高膜的分离选择性和渗透通量.
参考文献
| [1] | Shingjiang Jessie Lue;Tsai-hsin Liaw .Separation of xylene mixtures using polyurethane-zeolite composite membranes[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2006(1/3):137-143. |
| [2] | Yang Yang;Jin-wen Qian;Li-jing Xuan;Auan-fu An;Lin Zhang .Preparation and pervaporation of a palygorskite/polyacrylamide inorganic-organic hybrid membrane for separating m-/p-xylene isomers[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2006(1/3):193-201. |
| [3] | Dong Yong-Quan;Zhang Lin;Hou Tong-Gang .Preparation and pervaporation properties of blend membranes of polyacrylamide/montmorillonite nano-composite and poty(vinyl alcohol)[J].Chemical Journal of Chinese Universities,2007,28:2422-2426. |
| [4] | Chen H L;Wu L G;Tan J et al.PVA membrane filled β-cyclodextrin for separation of isomeric xylenes by pervaporation[J].Chemical Engineering Journal,2000,78:159-164. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%