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| 蜻蜓翅痣中的纳米纤维层状复合材料 | |
| 引用本文： | 赵红晓,殷雅俊,仲政.蜻蜓翅痣中的纳米纤维层状复合材料[J].科学通报,2010,55(18):1856-1858. |
| 作者姓名： | 赵红晓 殷雅俊 仲政 |
| 作者单位： | 同济大学航空航天与力学学院, 上海 200092; 清华大学航天航空学院工程力学系, 北京 100084 |
| 基金项目： | 国家自然科学基金资助项目(10602040, 10872114) |
| 摘 要： | 通过场发射扫描电子显微镜, 观察了红蜻翅痣的截面, 发现了令人惊奇的纳米纤维层状结构: 套筒状的翅痣中存在厚度为2~3 ?m的夹心层; 夹心层由二十多层超薄纳米层逐层复合而成; 超薄纳米层的厚度大约为90~150 nm; 每层超薄纳米层由平行排列的纳米纤维黏结而成. 奇异的纳米纤维层状结构, 为理解翅痣的功能和仿生制造提供了启示. |
| 关 键 词： | 蜻蜓 翅痣 纳米纤维 层状结构 |
| 收稿时间： | 2010-03-09 |
Nano fibrous multilayered composites in pterostigma of dragonfly |
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| ZHAO HongXiao,YIN YaJun & ZHONG Zheng.Nano fibrous multilayered composites in pterostigma of dragonfly[J].Chinese Science Bulletin,2010,55(18):1856-1858. | |
| Authors: | ZHAO HongXiao YIN YaJun & ZHONG Zheng |
| Institution: | 1 School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China; 2 Department of Engineering Mechanics, School of Aerospace, Tsinghua University, Beijing 100084, China |
| Abstract: | The sections of the pterostigma of a dragonfly (Crocothemis servilla Drury) are observed through FEG-ESEM, and interesting nano fibrous multilayered structures are discovered. The sleeve-like pterostigma has a center layer with the thickness of 2~3 μm. The center layer is composed of more than twenty ultra-thin nano layers with the thickness of 90~150 nm. Every ultra-thin nano layer is formed by parallel nano fibers adhered one-by-one. The marvelous nano fibrous multilayered structure provides reference for mankind to understand better the function of the pterostigma and to improve better the bionics manufactures. |
| Keywords: | dragonfly pterostigma nano fibers multilayered composites |
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