| 均苯型聚酰亚胺耐溶剂纳滤膜的制备 |
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| 引用本文： | 房昺,潘凯,曹兵. 均苯型聚酰亚胺耐溶剂纳滤膜的制备[J]. 膜科学与技术, 2012, 32(2): 1-4 |
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| 作者姓名： | 房昺 潘凯 曹兵 |
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| 作者单位： | 北京化工大学材料科学与工程学院,北京,100029 |
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| 基金项目： | 教育部科学技术研究重大项目，国家自然科学基金，北京化工大学中央高校基本科研业务费 |
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| 摘 要： | 两步法制备一种均苯型聚酰亚胺耐溶剂纳滤膜,重点研究热亚胺化进程对膜性能的影响.选用热亚胺化程序为200℃保持2.5h,250℃保持2 h,300℃保持2h.测试结果表明耐溶剂纳滤膜在大部分测试溶剂中有较好的稳定性,膜的几种纯溶剂通量均保持较高水平的同时对结晶紫和依来络蓝黑R水溶液的截留率分别达到99.8％和97.9％.
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| 关 键 词： | 耐溶剂纳滤膜 两步法 聚酰亚胺 热亚胺化 |
Preparation of polyimide (pyromellitic dianhydride-4,4'-oxydianiline) solvent resistance nanofiltration membrane |
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| FANG Bing , PAN Kai , CAO Bing. Preparation of polyimide (pyromellitic dianhydride-4,4'-oxydianiline) solvent resistance nanofiltration membrane[J]. Membrane Science and Technology, 2012, 32(2): 1-4 |
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| Authors: | FANG Bing PAN Kai CAO Bing |
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| Affiliation: | (College of Material Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China) |
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| Abstract: | This paper describes the preparation of polyimide(pyromellitic dianhydride-4,4′-oxydianiline) solvent resistance nanofiltration membrane by two-step method.In this research the thermal imidization procedure was studied.The solvent resistance nanofiltration membranes with better performance was prepared at the following procedures: 200 ℃ for 2.5 h,250 ℃ for 2 h,and 300 ℃ for 2 h in vacuum environment.The membrane was stable in most of the solvents tested.The fluxes of some common solvents keep a relatively high level while the rejection of Crystal violet and Eriochrome blue black R were up to 99.8% and 97.9% respectively. |
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| Keywords: | solvent resistant nanofiltration membrane two-step method polyimide heat imidization |
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