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超疏水滤纸的制备与应用

周聪1,陈硕2,朱卫桃1,袁平1,杨子辉1,李彬1,陈波1*   

  1. (1.湖南师范大学“化学生物学及中药分析”教育部重点实验室 长沙 410081;
    2.湖南大学材料科学与工程学院 长沙)
  • 收稿日期:2011-04-27 修回日期:2011-07-05 出版日期:2012-03-10 发布日期:2012-03-10
  • 通讯作者: 陈波，教授; Tel:0731-88865515; Fax:0731-88872046; E-mail:dr-chenpo@vip.sina.com; 研究方向：色谱、表面修饰、微流控芯片
  • 基金资助:
    国家自然科学基金(20927005)湖南省研究生创新课题（CX2010B221）资助项目

Preparation and Application of Super-hydrophobic Filter Paper

ZHOU Cong1, CHEN Shuo2, ZHU Weitao1, YUAN Ping1, YANG Zihui1, LI Bin1, CHEN Bo1*   

  1. (1.Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research,Ministry of Education,Hunan Normal University,Changsha 410081;
    2.College of Materials & Engineering of Hunan University,Changsha)
  • Received:2011-04-27 Revised:2011-07-05 Published:2012-03-10 Online:2012-03-10
  • Contact: CHEN Bo

PDF

2499

被引次数

5

摘要： 对SiO2纳米粒子进行硅烷化改性，再将其修饰到滤纸上，制备出静态水接触角＞150°的超疏水滤纸，对制备条件进行了优化。 用热重分析及扫描电子显微镜对超疏水滤纸表征后发现，二氧化硅纳米粒子在滤纸纤维表面形成一层包裹层，即纳米级粗糙结构，这种结构对滤纸的疏水性具有关键作用。 对滤纸的油水分离性能进行了研究，发现其对非均相体系和高粘度油水混合物具有很好的分离效果。

关键词: 超疏水滤纸, 纳米粒子, 硅烷化改性, 油水分离

Abstract: Super-hydrophobic filter papers were prepared by using SiO2 nano-particles midified by silylating reagent. The water contact angle on the filter papers was higher than 150°. Thermogravimetry and scanning electron microscope were used to characterize the filter paper. The results showed that SiO2 nano-particle layer was formed on the micro-fibers of filter paper. The combined nano- and micro-structure produced the super-hydrophobic property of the filter paper. The oil-water separation ability of the paper was also investigated, high oil-water separation efficiencies of the paper, especially for high-viscosity mixtures, were confirmed.

Key words: super-hydrophobic filter paper, Nanoparticles, Silylation modification, Oil-water separation

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