CAJ | 학술논문

使用扫描电镜和视频光学接触角测量仪研究了22种蝴蝶翅表面的多级复合结构和疏水性。一级结构为微米级鳞片,鳞片密度为101~280个/mm2,长65~135滋m,宽35~85滋m,间距48~112滋m。二级结构为鳞片表面的亚微米级纵肋和横向连接。三级结构为纵肋和横向连接上的纳米级突起。蝴蝶翅表面的蒸馏水接触角为138.2o~158.5o,属于天然疏水表面,这是翅表面化学组成与微观结构协同作用的结果。蝴蝶翅表面可为新型仿生自清洁材料的制备提供生物模板。
사용소묘전경화시빈광학접촉각측량의연구료22충호접시표면적다급복합결구화소수성。일급결구위미미급린편,린편밀도위101~280개/mm2,장65~135자m,관35~85자m,간거48~112자m。이급결구위린편표면적아미미급종륵화횡향련접。삼급결구위종륵화횡향련접상적납미급돌기。호접시표면적증류수접촉각위138.2o~158.5o,속우천연소수표면,저시시표면화학조성여미관결구협동작용적결과。호접시표면가위신형방생자청길재료적제비제공생물모판。
The complex hierarchical structures and hydrophobicity of wing surface of 22 butterfly species were investigated by means of a scanning electron microscopy and a contact angle measuring system. The primary structure is micrometric scale. The density of scale is 101~280 ind. /mm2 , and the length, width, and spacing of scale are 65~135 μm, 35~85 μm, and 48~112 μm, respectively. The secondary structure is submicrometric vertical gibbosities and horizontal links on scale surface. The tertiary structure is nano-protuber-ances on vertical gibbosities and horizontal links. Butterfly wing surface has contact angles of distilled water as high as 138. 2o~158. 5o, belonging to natural hydrophobic surface, which is the coupling effect of chemical composition and microstructure on the wing surface. Butterfly wing surface may provide bio-template for fabrication of novel biomimetic material with self-cleaning property.