| 微相分离结构聚氨酯膜的丁醇/水体系渗透汽化分离 |
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| 引用本文： | 葛玲玲,吴礼光,白云翔,张林,陈欢林. 微相分离结构聚氨酯膜的丁醇/水体系渗透汽化分离[J]. 高分子材料科学与工程, 2011, 0(7): 159-163 |
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| 作者姓名： | 葛玲玲 吴礼光 白云翔 张林 陈欢林 |
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| 作者单位： | 浙江大学化学工程与生物工程学系;浙江工商大学环境科学与工程学院;江南大学化学与材料工程学院 |
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| 基金项目： | 国家“863”计划项目(2009AA02Z208);国家自然科学基金资助项目(20876144,21076190) |
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| 摘 要： | 制备了端羟基聚丁二烯-聚氨酯（HTPB-PU）和端羟基聚丁二烯-乙烯基三乙氧基硅烷-聚氨酯（HTPB-VTES-PU）两种聚氨酯膜。采用傅立叶变换红外光谱（FT-IR）、差示扫描量热仪（DSC）和透射电镜（TEM）分析表征了两种膜的结构,结果发现,HTPB-PU有两个玻璃化转变温度,其膜具有一定程度的微相分离结构;HT...
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| 关 键 词： | 渗透汽化 HTPB-PU膜 HTPB-VTES-PU膜 微相分离结构 丁醇/水体系 |
Micro-Phase Separation Structure PU Membranes for Pervaporation of n-Butanol/Water Mixtures |
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| Lingling Ge,Liguang Wu,Yunxiang Bai,Lin Zhang,Huanlin Chen. Micro-Phase Separation Structure PU Membranes for Pervaporation of n-Butanol/Water Mixtures[J]. Polymer Materials Science & Engineering, 2011, 0(7): 159-163 |
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| Authors: | Lingling Ge Liguang Wu Yunxiang Bai Lin Zhang Huanlin Chen |
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| Affiliation: | 1(1.Department of Chemical Engineering and Biological Engineering,Zhejiang University,Hangzhou 310027,China;2.College of Environmental Sci.& Eng.,Zhejiang Gongshang University,Hangzhou 310012,China;3.School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122,China) |
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| Abstract: | Hydroxyl-terminated polybutadiene-polyurethane(HTPB-PU) and HTPB-triethoxyvinylsilane-PU(HTPB-VTES-PU) membranes were prepared for pervaporation of n-butanol/water mixtures.The structure of HTPB-PU and HTPB-VTES-PU membranes were characterized by differential scanning calimetry(DSC),transmission electron microscopy(TEM).The results show that the HTPB-PU membrane possess the micro-phase separation structure,and the micro-phase separation structure of the HTPB-VTES-PU membrane is more significant with compared to HTPB-PU membrane.In 1% n-butanol aqueous solution pervaporation,the HTPB-PU membranes show that the separation factor increases continually with increase of the mole ratio of 4,4′-diphenylmethane diisocyanat(MDI)/HTPB(-NCO/-OH),when the ratio of-NCO/-OH is 2,the separation factor and total flux of the HTPB-PU membrane are 42.8 g/m2·h and 38.1 g/m2·h at 60 ℃,respectively.The total flux of the membrane increases,and the separation factor increases slightly followed by a dramatic decrease with the increase of VTES content for the HTPB-VTES-PU membrane. |
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| Keywords: | pervaporation HTPB-PU membrane HTPB-VTES-PU membrane micro-phase separation structure n-butanol/water mixtures |
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