| 气隙长度与芯液浓度对纤维素中空纤维膜结构与性能的影响 |
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| 引用本文： | 梁义,宋俊,程博闻,陆飞.气隙长度与芯液浓度对纤维素中空纤维膜结构与性能的影响[J].膜科学与技术,2011,31(2). |
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| 作者姓名： | 梁义 宋俊 程博闻 陆飞 |
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| 作者单位： | 天津工业大学中空纤维膜材料与膜过程教育部重点实验室,天津,300160 |
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| 摘 要： | 以离子液体氯代1-烯丙基-3-甲基咪唑(AMIM]Cl)为溶剂来纺制纤维素中空纤维膜,考察了气隙长度与芯液浓度对中空纤维膜结构与性能的影响.采用扫描电子显微镜(SEM)对膜内、外表面形态及支撑层结构进行了观察,测试了中空纤维膜的水通量、截留率等渗透性能以及最大拉伸强度、断裂伸长率、杨氏模量等力学性能.结果表明:随着气隙长度与芯液浓度的增加,中空纤维膜外表面与支撑层孔洞结构变小,内表面结构变得更加规整,膜孔隙率与水通量下降,最大拉伸强度、断裂伸长率、杨氏模量等力学性能则逐渐变大;与芯液浓度相比,气隙长度对中空纤维膜性能的影响较为显著.
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| 关 键 词： | 气隙长度 芯液浓度 氯代1-烯丙基-3-甲基咪唑 纤维素 中空纤维膜 |
Influence of air gap length and bore liquid concentration on cellulose hollow fiber membranes structure and properties |
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| LIANG Yi,SONG Jun,CHENG Bowen,LU Fei.Influence of air gap length and bore liquid concentration on cellulose hollow fiber membranes structure and properties[J].Membrane Science and Technology,2011,31(2). |
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| Authors: | LIANG Yi SONG Jun CHENG Bowen LU Fei |
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| Affiliation: | LIANG Yi,SONG Jun,CHENG Bowen,LU Fei(The Key Laboratory of Hollow Fiber Membrane Material and Membrane Process of Ministry,Department of education,Tianjin Polytechnic university,Tianjin 300160,China) |
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| Abstract: | The cellulose hollow fiber membranes were spinned using ionic liquid 1-ally-3 methylimidazolium chloride(Cl) as solvent.Influence of air gap length and bore liquid concentration on the hollow fiber membranes structure and properties were investigated.Inner-and outer-surfaces morphology and the support layer structure of the membranes were studied using scanning electron microscopy(SEM).Furthermore,permeation properties and mechanical properties of the membranes,including water flux,retention rate,ultimate t... |
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| Keywords: | Air gap length Bore liquid concentration Cl cellulose hollow fiber membrane |
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