• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Studies on cellulose acetate-carboxylated polysulfone blend ultrafiltration membranes. III
【24h】

Studies on cellulose acetate-carboxylated polysulfone blend ultrafiltration membranes. III

机译：醋酸纤维素-羧化聚砜共混超滤膜的研究。三级

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Enhancement of the hydrophilicity in polymeric membrane materials results in membranes with higher flux and better membrane characteristics. Hence, polysulfone was carboxylated and ultrafiltration membranes were prepared from blends of cellulose acetate and carboxylated polysulfones having various degrees of carboxylation with a total polymer concentration of 20 wt % in casting solution and at different blend polymer compositions. The effects of degree of carboxylation on membrane characteristics such as compaction, pure water flux, and membrane hydraulic resistance (R-m) have been investigated. The influence of the polymer concentration in the blend solution on the performance of blend membranes at various blend polymer compositions has also been investigated and compared with that of blend membranes prepared from blends of cellulose acetate and polysulfone or carboxylated polysulfone with a total polymer concentration of 17.5 wt %. Further, the solute rejection performance of the membranes has also been investigated by subjecting the membranes to metal ion permeation studies using polyelectrolyte-enhanced ultrafiltration. (c) 2005 Wiley Periodicals, Inc.
机译：聚合物膜材料中亲水性的增强导致膜具有更高的通量和更好的膜特性。因此，聚砜被羧化并且由乙酸纤维素和具有不同羧化度的羧化聚砜的共混物制备超滤膜，其中在浇铸溶液中和在不同的共混聚合物组成下总聚合物浓度为20wt％。研究了羧化度对膜特性（如压实度，纯水通量和膜抗水阻力（R-m））的影响。还研究了共混溶液中聚合物浓度对各种共混聚合物组成下共混膜性能的影响，并将其与由醋酸纤维素和聚砜或羧化聚砜共混物（总聚合物浓度为17.5）制得的共混膜进行了比较。重量％。此外，还通过使用聚电解质增强超滤对膜进行金属离子渗透研究来研究膜的溶质排斥性能。 （c）2005年Wiley Periodicals，Inc.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号