仿生柱状黏附材料

发布时间：2018-05-28 20:15

  本文选题：仿生材料 + 干态黏附　； 参考：《中国材料进展》2017年01期

【摘要】：自然界中很多动物,如壁虎、甲虫和树蛙等,主要利用可逆的黏附力在各种表面爬行。研究发现这些动物脚趾上的特殊微纳柱状结构(刚毛、平滑结构等)起到了至关重要的作用。一方面,这些微纳柱状结构及其精细亚结构保证了动物脚趾能与接触表面形成很多有效接触点,从而形成足够强的黏附力。产生的黏附力甚至可达动物体重的200倍。另一方面,这些微纳结构又可以保证动物能从黏附的表面迅速脱离。这种黏附能力依赖于结构而非接触材料的表面化学组成的特性,具有极高的科研价值和应用前景。
[Abstract]:Many animals in nature, such as gecko, beetle and tree frog, crawl on various surfaces by reversible adhesion. It has been found that the special micro-nano columnar structures (bristles, smooth structures, etc.) on the toes of these animals play a crucial role. On the one hand, these micro and nano columnar structures and their fine substructures ensure that the toes can form many effective contact points with the contact surface, thus forming a strong enough adhesion force. The resulting adhesion can be as much as 200 times the animal's weight. On the other hand, these micro-and-nano structures ensure that animals can quickly detach from the adhesive surface. The adhesion ability depends on the structure rather than the surface chemical composition of the contact material and has high scientific research value and application prospect.
【作者单位】： 武汉大学动力与机械学院;
【基金】：国家自然科学基金资助项目(51503156,51611530546)
【分类号】：TB391
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本文编号：1948029