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超疏水滤纸的制备与应用 预览 被引量:12

Preparation and Application of Super-hydrophobic Filter Paper
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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。 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-partiele layer was formed on the micro-fibers of filter paper. The combined nano- and micro-structure produced the super- hydrophobie 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.
作者 周聪 陈硕 朱卫桃 袁平 杨子辉 李彬 陈波 ZHOU Cong, CHEN Shuo, ZHU Weitao, YUAN Ping, YANG Zihui, LI Bin, CHEN Bo ( aKey Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, China ; b College of Materials & Engineering of Hunan University, Changsha 410082, China)
出处 《应用化学》 CAS CSCD 北大核心 2012年第3期 297-303,共7页 Chinese Journal of Applied Chemistry
基金 国家自然科学基金(20927005)、湖南省研究生创新课题(CX20108221)资助项目
关键词 超疏水滤纸 纳米粒子 硅烷化改性 油水分离 super-hydrophobic filter paper, nanoparticles, silylation modification,oil-water separation
作者简介 通讯联系人: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
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