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PREPARATION AND CHARACTERIZATION OF TiO2/PVDF COMPOSITE HOLLOW FIBER MEMBRANE
Author(s): 
Pages: 709-712
Year: Issue:  5
Journal: ACTA POLYMERICA SINICA

Keyword:  二氧化钛聚偏氟乙烯复合中空纤维膜制备表征;
Abstract: 采用相转化法制备了二氧化钛(TiO2)/聚偏氟乙烯(PVDF)复合中空纤维膜.应用牛血清白蛋白截留实验、扫描电子显微镜、热重分析、X射线衍射分别对复合膜的分离性能、微观结构、热稳定性和晶相组成进行了分析.结果表明复合膜的性能与纯PVDF膜的相比有显著的改善,其中对牛血清白蛋白的截留率从3.27%提高到86.67%,单根纤维的断裂应力从3.35 MPa提高到4.70 MPa,提高了40.3%.氮气吸附实验测定的孔径分布进一步表明复合膜的孔径分布变窄,孔径变小.
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