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題名 | 改質Polysulfone/聚乙二醇摻合膜滲透蒸發之應用=Modified Polysulfone/polyethylene Glycol Composite Membrane Applyed for Pervaporation |
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作者 | 劉瑞美; 許菁珊; 陳世雄; | 書刊名 | 嘉南學報 |
卷期 | 26 2000.11[民89.11] |
頁次 | 頁89-98 |
分類號 | 445.461 |
關鍵詞 | 聚嗍碸; 聚乙二醇; 滲透蒸發; 薄膜; Polysulfone; PEG; Pervaporation; Membrane; |
語文 | 中文(Chinese) |
中文摘要 | 本研究利用Polysulfone/聚乙二醇摻合製備成具有高選擇性及高透過率薄膜。本計畫摻合以不同分子量之聚乙二醇(PEG)於聚嗍□(PSf)薄膜中,製備出親疏水比例不同之聚嗍□/聚乙二醇(PSf/PEG)複合薄膜,並利用小分量 PEG 對水分子增進擴散(mobility enhanced)之效果,有效提升複合膜之分離性能,膨潤性因PEG添加而增加可使滲透蒸發透過率增加,而親水性效應,則可維持其擴散選擇性並增加水合之效果,因此本研究中polysulfone/PEG薄膜,滲透蒸發性能遠比polysulfone提升,本研究並探討滲透蒸發操作條件之變化,如滲透蒸發之進料濃度、溫度變化等,以對最佳分離性能之影響。 |
英文摘要 | A high performance pervaporation membrabe was prepared by blending polysulfone and polyethylene glycol (PEG). In this study, various molecular weights PEG were added in polysulfone membrance to prepare a suitable hydrophilice composite membrance. By utilizing low molecular weight polyethylene additive, the effect of water mobility enhancement was observed in polysulfone/PEG composite membrance. Therefore, a high performance pervaporation membrance could be obtained. The increase of swelling properties increased the water permeation rate and a higher hydrophilicity own a good separation property of PSf/PEG membrane. In this study, the operating conditions were discussed for the best separation performance of composite membrances. |
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