聚丙烯腈/聚氨酯共混相容性对共混膜性能的影响
作者:王海博1,邱广明2
单位: 1内蒙古工业大学 土木工程学院,2内蒙古工业大学 能源与动力工程学院,呼和浩特 010051
关键词: 聚丙烯腈;聚氨酯;共混;微孔膜;相容性
出版年,卷(期):页码: 2015,35(6):67-71

摘要:
 以聚丙烯腈和聚氨酯为膜材料,N,N-二甲基乙酰胺为溶剂,采用相转化法制备微孔膜。研究了聚合物相容性对共混膜的结构和性能的影响。结果表明:PAN/PU为部分相容体系;当聚合物的比例为8/2,质量分数为16%时,膜水通量为773.2L/(m2h),对牛血清蛋白的截留率为87.7%,此时膜性能最佳;共混比在7/3到9/1之间,膜的力学性能较好。
 
 The blended microporous membrane of polyacrylonitrile and polyurethane was prepared by phase inversion method with N, N-dimethylacetamide as solvent. The influences of polymer compatibility on membrane structure and performance were studied. The results show that PAN/PU is partially compatible system;with blending ratio of 8:2 and the polymer mass fraction of 16%, the performance of the blended membrane is the best: The water flux is 773.2L/(m2h)and the retention rate is 87.7%.When blending ratio is in between 7:3 and 9:1, the membrane has good mechanical properties.
 
王海博(1987-),女,陕西西安,主要研究方向:膜分离和水处理技术,E-mail:327947362@qq.com

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