| 纳米SiO2/PVA复合超滤膜的制备及性能研究 |
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| 引用本文： | 姜云鹏,王榕树.纳米SiO2/PVA复合超滤膜的制备及性能研究[J].高分子材料科学与工程,2002,18(5):177-180. |
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| 作者姓名： | 姜云鹏 王榕树 |
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| 作者单位： | 天津大学化工学院,天津,300072 |
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| 基金项目： | 国家自然科学基金，29971022， |
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| 摘 要： | 用Stober法制备纳米级分散的SiO2颗粒，使其均匀地分散在PVA水溶液中，并通过相转化法制得纳米SiO2/PVA复合超滤膜。对所得膜进行了DSC分析和力学性能测试。结果表明，膜的玻璃化转变温度（Tg）和力学性能都有明显的提高。初步探讨了纳米SiO2对所得膜增强机理；通过超滤实验对所得膜的性能进行了评价。
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| 关 键 词： | 制备 性能 研究 PVA 纳米SiO2 复合超滤膜 相转化法 增强 超滤 |
| 文章编号： | 1000-7555(2002)05-0177-04 |
| 修稿时间： | 2002年1月14日 |
PREPARATION AND PROPERTIES OF NANO-SIZED SILIC A/POLY (VINYL ALCOHOL) COMPOSITE ULTRAFILTRATION MEMBRANES |
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| JIANG Yun peng,WANG Rong shu.PREPARATION AND PROPERTIES OF NANO-SIZED SILIC A/POLY (VINYL ALCOHOL) COMPOSITE ULTRAFILTRATION MEMBRANES[J].Polymer Materials Science & Engineering,2002,18(5):177-180. |
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| Authors: | JIANG Yun peng WANG Rong shu |
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| Abstract: | Nanodisperse silica particals were synthesized by a Stober method. They were uniformly dispersed in a solution of poly(vinyl alcohol)(PVA) in water. Nano sized silica/PVA composite ultrafiltration membranes were propared by the phase inversion process. The resulting membranes were analysised using the DSC. The mechanical properties of the resulting membranes were tested. The results show that both the glass transiton temperature( T g) and the mechanical properties of these membranes are apparently improved. The mechanism of nano sized silica for improving the strength of the resulting membranes was discussed. The performances of these membranes were assessed in ultrafiltration experiment. |
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| Keywords: | poly(vinyl alcohol) nano sized silica composite ultrafiltration membrane phase inversion reinforcing ultrafiltration |
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