典型植物叶片非光滑表面的纳米力学特性  

Nanometer mechanical characteristics of sculptured surfaces of typical plant leaves

作　　者：任露泉[1] 王淑杰[1] 韩志武[1] 邱兆美[1] 

机构地区：[1]吉林大学地面机械仿生技术教育部重点实验室,长春130022

出　　处：《吉林大学学报（工学版）》2007年第5期1121-1125,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金重点资助项目(50635030);国家重大基础研究前期专项基金资助项目(2002CCA012000);教育部科学技术研究重点资助项目(105059)

摘　　要：利用纳米技术对几种典型植物叶片表面进行了纳米级硬度的测定。结果表明:不同质地、不同生存环境的植物叶表面形态、结构不同,从而使植物叶表面的硬度不同。其中革质鲜叶片(毛竹,紫丁香)表面硬度较大,蜡质叶片(水莲,美人蕉等)硬度较小;植物非光滑叶表形态中凸包处硬度较凹坑处的硬度大;同一叶片表层的硬度大于内层的硬度。本研究为工程仿生的表面耐磨涂层设计及其自然复合材料的选择提供有益参考。The hardness of typical plant leaves was measured using nanometer technology. Results show that the surface morphology and structure of the leaves vary with the leaf texture and living condition, leading to the differences in the nanometer hardness. The hardness of leaves with leather texture （such as fresh bamboo and lilac） is higher, while that with wax texture （such as lotus and canna） is lower. The hardness of convex hull is higher than that of pit portion on the sculptured leaf surfaces. For the same leaf, the hardness of the inside is lower than that of the surface. The results may provide important information to he referred in surface coating design of bionic materials and in choosing natural composite hiomaterials.

关 键 词：工程仿生学 非光滑叶片表面 纳米力学 硬度 植物 

分 类 号：TB17[生物学—生物工程] Q944