芋叶超疏水超亲油性能及应用

doi:10.7503/cjcu20130220

高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (9): 2191.doi: 10.7503/cjcu20130220

芋叶超疏水超亲油性能及应用

刘兵, 徐万飞, 李红, 刘浏, 沈玉华, 谢安建

安徽大学化学化工学院, 合肥 230039

收稿日期:2013-03-11 出版日期:2013-09-10 发布日期:2013-08-30
作者简介:谢安建,男,教授,主要从事分子有序膜的组装与应用以及纳米材料的仿生合成研究.E-mail:anjx@163.com
基金资助:
国家自然科学基金(批准号:21171001,21173001);国家级大学生创新创业训练计划(批准号:cxcy2012032)资助.

Super-hydrophobic and Super-oleophilic Properties of Taro Leaves and Their Application

LIU Bing, XU Wan-Fei, LI Hong, LIU Liu, SHEN Yu-Hua, XIE An-Jian

School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, China

Received:2013-03-11 Online:2013-09-10 Published:2013-08-30

摘要/Abstract

摘要：

通过静态接触角(CA)和扫描电子显微镜(SEM)分析了芋叶的超疏水超亲油性能. 考察了不同处理温度下芋叶的饱和吸油率、缓释保油率以及离心保油率. 结果表明, 芋叶下表面具有超疏水性能, 其静态水接触角为157.1°(滚动角小于3°), 远大于上表面静态水接触角(109.1°). 不同温度处理的芋叶的饱和吸油率的变化呈现一定规律, 在200 ℃下干燥的芋叶具有最高饱和吸油率(8.1 g/g). 芋叶对难挥发性的机油固定能力较强, 并且在较高转速下对机油仍具有较高的离心保油率.

关键词: 芋叶, 超疏水, 超亲油, 饱和吸油率, 保油率

Abstract:

The super-hydrophobic and super-oleophilic properties of taro leaves and their application were reported. The reasons that taro leaves possess super-hydrophobic and super-oleophilic properties were analyzed by static contact angle(CA) and scanning electron microscopy(SEM). The saturated oil absorption rate, sustained release and centrifugal oil retention of taro leaves dried at different temperatures were measured and analyzed by weighing method, sustained release property and centrifugation etc. The results show that the reverse side of the taro leaf is super-hydrophobic and its static water contact angle can reach 157.1° which is much larger than that of the front one(109.1°), and the sliding angles are not larger than 3°. It is also observed that the change of saturated oil absorption rate for the taro leaves shows certain regularity, and the highest saturated oil absorption(8.1 g/g) was obtained while the taro leaves dried at 200 ℃. Taro leaves own different capacity on fixing various oil spill. It can be known from results that taro leaves have strong capacity on fixing low volatile oil material and high centrifugal oil retention at high rotate speed.

Key words: Taro leaf, Super-hydrophobic, Super-oleophilic, Saturated oil absorption, Oil retention

中图分类号:

O647.5

TrendMD:

刘兵, 徐万飞, 李红, 刘浏, 沈玉华, 谢安建. 芋叶超疏水超亲油性能及应用. 高等学校化学学报, 2013, 34(9): 2191.

LIU Bing, XU Wan-Fei, LI Hong, LIU Liu, SHEN Yu-Hua, XIE An-Jian. Super-hydrophobic and Super-oleophilic Properties of Taro Leaves and Their Application. Chem. J. Chinese Universities, 2013, 34(9): 2191.

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芋叶超疏水超亲油性能及应用

Super-hydrophobic and Super-oleophilic Properties of Taro Leaves and Their Application

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