| 凝固条件对α-纤维素中空纤维膜结构和性能的影响 |
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| 引用本文： | 李红剑,李雄岩,贺晓泉,李雪梅,曹义鸣,袁权.凝固条件对α-纤维素中空纤维膜结构和性能的影响[J].高分子学报,2007,0(3):250-254. |
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| 作者姓名： | 李红剑 李雄岩 贺晓泉 李雪梅 曹义鸣 袁权 |
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| 作者单位： | 1. 中国科学院大连化学物理研究所,大连,116023
2. 南海西部石油勘察设计公司,湛江,524057 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 考察了芯液种类水、N-甲基吗啉-N-氧化物(NMMO)和二甲基亚砜(DMSO)],外凝固浴中DMSO浓度(0-60%)和外凝固浴温度(20-80℃)对纤维素中空纤维膜性能的影响,并采用扫描电镜对其结构进行了表征.结果表明,采用DMSO作为芯液,可以得到内皮层多孔的非对称结构膜;随着外凝固浴温度从20增大到80℃,外皮层的厚度逐渐减小,膜的纯水通量增大了2倍左右,而牛血清蛋白(BSA)截留率为60%左右,没有显著的变化.
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| 关 键 词： | 纤维素 凝固条件 中空纤维膜 油水分离 |
| 收稿时间： | 2006-01-23 |
| 修稿时间： | 2006-03-20 |
EFFECT OF COAGULATION CONDITIONS ON STRUCTURE AND PROPERTIES OF α-CELLULOSE HOLLOW FIBER MEMBRANES |
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| LI Hongjian,LI Xiongyan,HE Xiaoquan,LI Xuemei,CAO Yiming,YUAN Quan.EFFECT OF COAGULATION CONDITIONS ON STRUCTURE AND PROPERTIES OF α-CELLULOSE HOLLOW FIBER MEMBRANES[J].Acta Polymerica Sinica,2007,0(3):250-254. |
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| Authors: | LI Hongjian LI Xiongyan HE Xiaoquan LI Xuemei CAO Yiming YUAN Quan |
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| Institution: | 1.Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,2.Nanhai West Oil Survey &; Design Company,Zhanjiang 524057 |
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| Abstract: | Different types of bore fluids were tested and dimethyl sulfoxide(DMSO) was selected as the optimal bore fluid to eliminate the inner skin.Various concentrations of DMSO in the outside coagulation bath(0-60%) and different coagulation temperature(20-80℃) were used for investigation.The structure of the hollow fiber was examined using scanning electron microscopy(SEM).Thickness of the outer skin decreased with increasing the coagulation temperature.As a result,the membrane flux was enhanced by 2 times as the temperature was increased,while the retention for bovine serum albumin(BSA) and pore size of the membrane did not change significantly. |
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| Keywords: | Cellulose Coagulation conditions Hollow fiber membrane Oil-water separation |
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