东方蝼蛄膜翅表面形态与润湿性  

Surface Morphology and Wettability of the Membranous Wing of the Oriental Mole Cricket(Gryllotalpa orientalis Burmeister)

作　　者：高吭[1] 李玉柱[1] 佟金[2] 

机构地区：[1]河南科技大学车辆与动力工程学院,洛阳471003 [2]吉林大学工程仿生教育部重点实验室,长春130025

出　　处：《农业机械学报》2011年第7期220-222,190,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(50675087);河南省教育厅自然科学计划项目(2011A410001);河南科技大学博士科研启动基金资助项目(09001435)和河南科技大学青年基金资助项目(2010QN0017)

摘　　要：利用扫描电镜分析了东方蝼蛄膜翅的表面形态。在OCA20型接触角测量仪上测量了水与东方蝼蛄膜翅展开表面各部位的接触角,分析了东方蝼蛄膜翅表面几何微结构与润湿性的关系。研究表明,东方蝼蛄膜翅展开后各部位的几何微结构各不相同,水与东方蝼蛄膜翅展开表面各部位的接触角平均值为94.4°～118.6°,表现出疏水性能。东方蝼蛄膜翅表面几何微结构与疏水性能的综合作用是其折叠后表面不沾土壤和水的重要机理。The surface morphology of the membranous wing of the oriental mole cricket（Gryllotalpa orientalis Burmeister） was examined by scanning electron microscopy（SEM）.The contact angles of water on the membranous wing surface of the oriental mole cricket were determined with an interface tension/wetting-angle measuring instrument（model OCA20）.The relationship between wettability of the membranous wing surface of the oriental mole cricket with geometrical structure of its membranous wing surface was analyzed.The results showed the difference of each part of the membranous wing surface in the geometrical structure.The average apparent contact angles of water on the membranous wing surface of the oriental mole cricket was from 94.4° to 118.6°,indicating a hydrophobic ability.The comprehensive action of the geometrically structural surface and the hydrophobic function was the dominant mechanism of preventing adhesion of soil and water from their membranous wing surface.This research established the theoretical foundation on exploring all kinds of membranous wings and improving the waterproofness of green thin film.

关 键 词：仿生学 东方蝼蛄 膜翅 表面形态 润湿性 

分 类 号：Q811[生物学—生物工程]