蝴蝶翅膀表面超微结构与浸润性机理分析  

Observation and analysis of ultrastructure and wettability of butterfly wing surfaces

作　　者：徐琳[1,2] 丁建宁[1,3] 李伯全[2] 程广贵[1,2] 坎标[1] 

机构地区：[1]江苏大学微纳米科学技术研究中心,江苏镇江212013 [2]江苏大学机械工程学院,江苏镇江212013 [3]江苏工业学院低维材料微纳器件与系统研究中心,江苏常州213164

出　　处：《江苏大学学报（自然科学版）》2009年第4期347-351,共5页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(50775101)

摘　　要：用热场发射扫描电子显微镜和接触角测量仪观测迁粉蝶、密纱眉眼蝶、素饰蛱蝶、绿带翠凤蝶和黑绢斑蝶翅膀表面的超微结构，测量其静态接触角和滚动角，测量分析表明：蝴蝶翅膀表面覆盖着重叠排列的瓦片状鳞片，鳞片上分布有纵隆脊和肋，相邻脊脉与肋间形成了凹坑；鳞片的排间距、脊和肋按蝴蝶种类的不同而具有不同的尺寸．有鳞片翅膀表面的接触角在139．7°～158．9°之间，明显大于无鳞片翅膀表面的接触角（88°～144°），正向、逆向和垂直翅脉发散方向的滚动角不同，翅膀表面的超微结构导致其具有各向异性的浸润性．The ultrastructures of the butterfly wings of Catopsilia pomona, Mycalesis misenus de Niceville, Stibochiona nicea, Papilio maackii and Parantica melaneus were observed by thermal field emission scanning electron microscope. Static contact angle and roll angle of the butterfly wing surfaces were measured by the contact angle measuring system. The results show that the ultra-structures of butterfly wings are formed by arraying micron scales, on which there are regularly arranged ridges ribs and concavity. The ultrastructures of the scales surface, including the size and interval distance of the rows, ribs, and ridges, vary with the difference of the butterfly kinds. The wettabilities of the butterfly wings were also analyzed. The static contact angles of wing surfaces are in the range of 139.7° to 158.9° ,larger than the contact angles of no-scale wing surfaces（88°- 144°）. Interestingly, the roll angles along, against and perpendicular to the arrangement direction are different, indicating that anisotropy of wettahility of wing surfaces is related to the special surface microstructures on the wings.

关 键 词：蝴蝶 表面结构 鳞片 浸润性 接触角 滚动角 

分 类 号：Q811[生物学—生物工程]