• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Hydrophilic modification of PVDF porous membrane via a simple dip-coating method in plant tannin solution
【24h】

Hydrophilic modification of PVDF porous membrane via a simple dip-coating method in plant tannin solution

机译：植物单宁溶液中简单浸涂法亲水改性PVDF多孔膜

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

To improve the hydrophilicity of polyvinylidene fluoride (PVDF) porous membranes, herein, we report for the first time a low-cost and environmental plant tannin coating, which is strongly constructed on the surface of the PVDF membrane via a simple dip-coating method. An oxidation induced aggregation mechanism was detected in the tannin solution through the use of ultraviolet spectrophotometry (UV-Vis). The morphology and chemical composition of the tannin coated PVDF membrane were characterized via field-emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS) and attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR). After coating with the tannin coating, hydrophilicity and filtration performance are both greatly enhanced, and the modified membranes also have a good emulsion separation performance and excellent antifouling property (after emulsion separation, the flux recovery ratio even reaches 100%). Moreover, these membranes possess outstanding durability that is disclosed by a long-term rinsing experiment. These results indicate that the plant tannin coating has great potential application for the hydrophilic modification of hydrophobic membranes.
机译：为了改善聚偏二氟乙烯（PVDF）多孔膜的亲水性，在此，我们首次报告低成本和环境植物单宁涂层，其通过简单的浸涂方法在PVDF膜的表面上强烈地构造。通过使用紫外分光光度法（UV-VI）在单宁溶液中检测氧化诱导的聚集机制。通过现场 - 发射扫描电子显微镜（FeSEM），X射线光电子能谱（XPS），并衰减总反射率傅里叶变换红外光谱（ATR-FTIR）的形态和化学成分的表征特征在于丹宁涂覆的PVDF膜。在用单宁涂层涂覆后，亲水性和过滤性能大大提高，改性膜还具有良好的乳液分离性能和优异的防污性（乳液分离后，助焊剂恢复比甚至达到100％）。此外，这些膜具有优异的耐久性，该实验是由长期漂洗实验公开的。这些结果表明，植物单宁涂层具有很大的潜在应用，用于疏水性膜的亲水性改性。

著录项

  • 来源
    《RSC Advances》 |2016年第75期|共8页
  • 作者

    Zhang Songfeng; Wu Lili; Deng Feirong; Zhao Depeng; Zhang Chao; Zhang Chaocan;

  • 作者单位

    Wuhan Univ Technol Sch Mat Sci &

    Engn Wuhan 430070 Peoples R China;

    Wuhan Univ Technol Sch Mat Sci &

    Engn Wuhan 430070 Peoples R China;

    Wuhan Univ Technol Sch Mat Sci &

    Engn Wuhan 430070 Peoples R China;

    Wuhan Univ Technol Sch Mat Sci &

    Engn Wuhan 430070 Peoples R China;

    Wuhan Univ Technol Sch Mat Sci &

    Engn Wuhan 430070 Peoples R China;

    Wuhan Univ Technol Sch Mat Sci &

    Engn Wuhan 430070 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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