Hydrophobicity mechanism of non-smooth pattern on surface of butterfly wing  

作　　者：FANG Yan SUN Gang WANG TongQing CONG Qian REN LuQuan 

机构地区：[1]Key Laboratory for Terrain Machine Bionics Engineering of Ministry of Education, Jilin University, Changchun 130025, China [2]School of Life Science, Changchun Teachers College, Changchun 130032, China [3]School of Life Science, Northeast Normal University, Changchun 130024, China [4]The State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China

出　　处：《Chinese Science Bulletin》2007年第5期711-716,共6页

基　　金：Supported by Key Project of the National Natural Science Foundation of China (Grant No. 50635030);the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20040183048)

摘　　要：Twenty-nine species (24 genera, 6 families) of butterflies typical and common in northeast China were selected to make qualitative and quantitative studies on the pattern, hydrophobicity and hydrophobicity mechanism by means of scanning electron microscopy and contact angle measuring system. The scale surface is composed of submicro-class vertical gibbosities and horizontal links. The distance of scale is 48—91 μm, length 65—150 μm, and width 35—70 μm. The distance of submicro-class vertical gib-bosities on scale is 1.06—2.74 μm, height 200—900 nm, and width 200—840 nm. The better hydropho-bicity on the surface of butterfly wing (static contact angle 136.3°—156.6°) is contributed to the co-effects of micro-class scale and submicro-class vertical gibbosities on the wing surface. The Cassie equation was revised, and new mathematical models and equations were established.Twenty-nine species （24 genera, 6 families） of butterflies typical and common in northeast China were selected to make qualitative and quantitative studies on the pattern, hydrophobicity and hydrophobicity mechanism by means of scanning electron microscopy and contact angle measuring system. The scale surface is composed of submicro-class vertical gibbosities and horizontal links. The distance of scale is 48-91μm, length 65-150μm, and width 35-70μm. The distance of submicro-class vertical gibbosities on scale is 1.05-2.74μm, height 200-900 nm, and width 200-40 nm. The better hydropho- bicity on the surface of butterfly wing （static contact angle 136.3°-156.6°） is contributed to the co-effects of micro-class scale and submicro-class vertical gibbosities on the wing surface. The Cassie equation was revised, and new mathematical models and equations were established.

关 键 词：蝴蝶 翅膀 疏水性 非平滑表面 自清洁 仿生学 

分 类 号：Q811.7[生物学—生物工程] Q969.438.1