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| 混合稀释剂对热致相分离法制备聚偏氟乙烯膜性质及结构的影响 | |
| 引用本文： | 武利顺,孟德素,薛罡,陈泉源. 混合稀释剂对热致相分离法制备聚偏氟乙烯膜性质及结构的影响[J]. 精细化工, 2011, 28(6): 521-524 |
| 作者姓名： | 武利顺 孟德素 薛罡 陈泉源 |
| 作者单位： | 1. 东华大学环境科学与工程学院,上海201620;山东菏泽学院化学化工系,山东菏泽274015 2. 山东菏泽学院化学化工系,山东菏泽,274015 3. 东华大学环境科学与工程学院,上海,201620 |
| 摘 要： | 采用邻苯二甲酸二丁酯(DBP)为稀释剂,通过加入部分N,N-二甲基乙酰胺(DMAc)或邻苯二甲酸二辛酯(DOP),分别在150℃和220℃下,采用热致相分离法制备了聚偏氟乙烯(PVDF)平板膜,研究了在较低温度下或高温下制得膜的性能和结构。结果表明,加入质量分数10%的DMAc在150℃下制膜,比采用纯的DBP为稀释剂时膜的通量提高了28%,过多DMAc的加入反而会使膜的通量降低;加入质量分数10%的DOP在220℃下制膜,膜的通量则下降了62%。同时采用扫描电镜观察了膜的截面结构,解释了采用不同混合稀释剂时膜形成不同结构的原因。 |
| 关 键 词： | 热致相分离 稀释剂 聚偏氟乙烯 膜 功能材料 |
| 收稿时间： | 2010-12-14 |
| 修稿时间： | 2011-03-14 |
Effect of mixed diluent on property and structure of PVDF membrane prepared via TIPS method |
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| WU Li-shun,MENG De-su,XUE Gang and CHEN Quan-yuan. Effect of mixed diluent on property and structure of PVDF membrane prepared via TIPS method[J]. Fine Chemicals, 2011, 28(6): 521-524 | |
| Authors: | WU Li-shun MENG De-su XUE Gang CHEN Quan-yuan |
| Affiliation: | Department of Chemistry and Chemical Engineering, Heze University,College of Environmental Science and Engineering, Donghua University,College of Environmental Science and Engineering, Donghua University |
| Abstract: | Polyvinylidene fluoride flat membranes were respectively prepared at 150 ℃ and 220 ℃ via TIPS method by using DBP as diluent and DMAc or DOP as mixed diluent.The property and structure of membranes prepared at lower and higher temperature were investigated respectively.The results show that water flux of the membrane prepared with 10% DMAc addition at 150 ℃ is 28% higher than that prepared with DBP as diluent.Water flux tends to decrease when the addition of DMAc is above 10%.Water flux of the membrane prepared with 10% DOP addition at 220 ℃ is 62% lower than that prepared with DBP as diluent.Meanwhile,the sectional structure of the membranes is observed with SEM and the reason for the formation of different structures when adopting different mixed diluents is explained. |
| Keywords: | TIPS diluent PVDF membrane |
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