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| 聚合物分子量对热致相分离法制备聚乙烯微孔滤膜的影响 | |
| 引用本文： | 夏德万,张强,赵芸,矫庆泽,施艳荞.聚合物分子量对热致相分离法制备聚乙烯微孔滤膜的影响[J].功能高分子学报,2007,19(3):267-271. |
| 作者姓名： | 夏德万 张强 赵芸 矫庆泽 施艳荞 |
| 作者单位： | 1. 北京理工大学化工与环境学院,北京,100081;中国科学院化学研究所,北京,100080 2. 北京理工大学化工与环境学院,北京,100081 3. 中国科学院化学研究所,北京,100080 |
| 基金项目： | 国家重点基础研究发展计划资助项目(2003CB615701) |
| 摘 要： | 选取不同分子量的聚乙烯/二苯醚作为聚合物稀释剂体系,通过浊点及结晶温度绘制了体系的热力学相图;并在不同淬冷温度下,通过热致相分离法制备了聚乙烯微孔滤膜。讨论了聚合物分子量及淬冷温度对成膜孔结构的影响。结果表明:聚合物的分子量不仅影响微孔滤膜断面的孔径,还影响其形态和结构。 |
| 关 键 词： | 聚乙烯 热致相分离 膜 聚合物分子量 孔结构 |
| 文章编号： | 1008-9357（2007）03-0267-05 |
| 收稿时间： | 2006-12-27 |
Effect of Polymer Molecular Weight on Preparation of Porous Polyethylene Membranes via Thermally Induced Phase Separation |
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| XIA De-wan,ZHANG Qiang,ZHAO Yun,JIAO Qing-ze,SHI Yan-qiao.Effect of Polymer Molecular Weight on Preparation of Porous Polyethylene Membranes via Thermally Induced Phase Separation[J].Journal of Functional Polymers,2007,19(3):267-271. | |
| Authors: | XIA De-wan ZHANG Qiang ZHAO Yun JIAO Qing-ze SHI Yan-qiao |
| Institution: | 1. School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China;2. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China |
| Abstract: | The porous polyethylene membranes are prepared by thermally induced phase separation method in PE/diphenyl ether system.The phase diagrams of HDPE2200J HDPE-5200S and(UHMW)-PE/diphenyl ether systems are drawn by the cloud point temperature and crystallization(temperature) via mass fraction of polymer in solvent.The effects of polymer molecular weight and quenching temperature on the porous structure are also discussed.The polymer molecular weight is effective not only to the pore size but also to the pore shape. |
| Keywords: | polyethylene thermally induced phase separation membrane polymer molecular weight pore structure |
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