聚醋酸乙烯酯对聚偏氟乙烯膜结构及性能的影响

发布时间：2018-03-25 12:49

本文选题：聚醋酸乙烯酯　切入点：聚偏氟乙烯　出处：《水处理技术》2017年09期

【摘要】：采用浸没沉淀相转化法制备聚偏氟乙烯(PVDF)平板膜,研究了亲水性添加剂聚醋酸乙烯酯(PVAc)的含量对膜的结构及亲水性、水通量、截留率、抗污染性等性能的影响。结果表明,添加剂PVAc可以明显改善膜的亲水性、抗污染性,纯水通量也得到明显提高,但PVAc含量较高时,膜的纯水通量下降。当PVAc含量为2%时,膜的综合性能最好,纯水通量达到238 L/(m~2·h),对BSA的截留率为93.2%,纯水通量恢复率达90.3%。
[Abstract]:The prepared by immersion precipitation phase inversion of polyvinylidene fluoride (PVDF) membrane, hydrophilic additive of polyvinyl acetate (PVAc) content on the membrane structure and hydrophilicity, water flux, retention rate, effect of anti pollution performance. The results show that the additive PVAc can significantly improve the hydrophilicity film, anti pollution, pure water flux increased, but the content of PVAc is higher, flux decreased. When the content of PVAc is 2%, the comprehensive performance of the best film, the pure water flux up to 238 L/ (m~2 - H), on the retention rate of BSA is 93.2%, the pure water flux recovery rate reached 90.3%.

【作者单位】：江苏苏净集团苏州苏净环保新材料有限公司;
【分类号】：TQ051.893

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