Design of new separation membrane for organic liquid mixtures by controlling nano-scale structure

通过控制纳米结构设计新型有机液体混合物分离膜

• 批准号: 15360410
• 负责人: MIZOGUCHI Kensaku
• 金额: $ 3.33万
• 依托单位: Shizuoka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15360410/
• 关键词: Nano-Structure of membrane; Polyvinyl alcohol; Degree of saponification; Benezene; Cyclohexane; Separation membrane for liquid; Membrane swelling; Flory-Huggins equation; ナノ構造; 有機液体分離; トルエン; メチルシクロヘキサン; ケン化度

In order to obtain high performance separation membranes for organic liquid mixtures, effect, of nano-scale structure control of PVA based membranes on the separation performance was investigated. Various PVA materials with different degree of saponification were prepared by saponification of or blending base materials.Getting PV separation performance of Benzene/ Cyclohexane(Bz/Chx) mixture, first of all, membranes with degree of saponification of 69% were found to be excellent for such liquid separation. After that, degree of swelling, degree of crystallization and sorption equilibrium of membranes were measured, and relationship between characterized structure and separation performance was discussed.Two kinds of nano-scale structure model were proposed to analyze the performance-dense structure and gel like structure. Degree of swelling and separation performance were discussed applying the extended Flory-Huggins equation including pressure and elastic effect. Introducing estimated parameters, pressure and elastic effect into the equation, degree of swelling of membrane and sorption equilibrium were calculated. The analytical results on the basis of gel like structure were agreed fairly well to the experimental data.The proposed model to combine separation performance and nano-scale structure would be useful to design pervaporation membranes for separation of liquid mixtures.

为了获得有机液体混合物的高性能分离膜，研究了PVA基膜的纳米级结构控制对分离性能的影响。通过基础材料的皂化或共混制备了不同皂化度的各种PVA材料。获得苯/环己烷(Bz/Chx)混合物的PV分离性能，首先发现皂化度为69%的膜对于这种液体分离具有优异的性能。之后，测量了膜的溶胀度、结晶度和吸附平衡，并讨论了特征结构与分离性能之间的关系。提出了两种纳米级结构模型来分析性能——致密结构和凝胶状结构。应用扩展的 Flory-Huggins 方程（包括压力和弹性效应）讨论了膨胀程度和分离性能。将估计参数、压力和弹性效应引入方程中，计算膜的溶胀度和吸附平衡。基于凝胶状结构的分析结果与实验数据非常吻合。所提出的将分离性能和纳米级结构相结合的模型将有助于设计用于分离液体混合物的渗透蒸发膜。

项目成果

Crosslinking reaction of poly(vinyl alcohol) with poly(acrylic acid) (PAA) by heat treatment: Effect of neutralization of PAA

• DOI: 10.1002/app.12910
• 发表时间: 2003-11-28
• 期刊: JOURNAL OF APPLIED POLYMER SCIENCE
• 影响因子: 3
• 作者: Kumeta, K;Nagashima, I;Mizoguchi, K
• 通讯作者: Mizoguchi, K

Crosslinking of poly(vinyl alcohol) via bis(β-hydroxyethyl) sulfone

• DOI: 10.1295/polymj.36.472
• 发表时间: 2004-01-01
• 期刊: POLYMER JOURNAL
• 影响因子: 2.8
• 作者: Kumeta, K;Nagashima, I;Mizoguchi, K
• 通讯作者: Mizoguchi, K

Membrane Separation of Organic Liquid Mixtures-Membrane Structure and Separation Performance

有机液体混合物的膜分离-膜结构与分离性能

• 发表时间: 2005
• 期刊: Proceedings of 4^<th> International Conference on Global Research and Education
• 作者: K.Mizoguchi;H.Kondou;S.Matsui;K.Ohta;M.Hara
• 通讯作者: M.Hara

K.Kumeta, I.Nagashima, S.Matsui, K.Mizoguchi: "Crosslinking reaction of poly(vinyl alcohol)with poly(acrylic acid)(PAA) by heat treatment-Effect of neutralization of PAA-"J.Appl.Plym.Sci.. Vol.90. 2420-2427 (2003)

K.Kumeta、I.Nagashima、S.Matsui、K.Mizoguchi：“通过热处理进行聚乙烯醇与聚丙烯酸(PAA)的交联反应-PAA中和的效果-”J.Appl.Plym