权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Theoretical consideration and experimental investigation of existence of energy barrier in wetting of multi-pillar surface

多柱表面润湿存在能垒的理论思考与实验研究

基本信息

批准号：
23540473
负责人：
MAYAMA Hiroyuki
金额：
$ 3.33万
依托单位：
Asahikawa Medical College (2012-2013)Hokkaido University (2011)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2011
资助国家：
日本
起止时间：
2011 至 2013
项目状态：
已结题

项目摘要

Various surfaces can be seen in nature such as plants, insects and living matter. These surfaces are usually covered by hairs and flakes of organic compounds. Among them, lotus effect observed on lotus leave is well-known as a typical example of surface functions. Lotus leaves repel water completely and its surface is cleaned by rolling of water droplets (self-cleaning). On the other hand, one can find super-water-repellency on such surfaces in early stage, but, these show wettability by perturbation and passage of time. This physically means that the existence of an energy barrier between dewettable and wettable states. In this study, we have theoretically and experimentally studied wetting phenomena of multi-pillar surfaces as model surface of plants, insects and living matter to study the energy barrier.

在自然界中可以看到各种表面，如植物，昆虫和生物。这些表面通常被毛发和有机化合物的薄片覆盖。其中，在荷叶上观察到的莲花效应是众所周知的表面功能的典型例子。荷叶完全排斥水，其表面通过水滴的滚动而清洁（自清洁）。另一方面，人们可以在早期阶段在这样的表面上发现超拒水性，但是，这些表面通过扰动和时间的推移而显示出润湿性。这在物理上意味着在退相干态和返相干态之间存在一个能垒。本研究以植物、昆虫和生物为模型，从理论和实验两方面研究了多柱体表面的润湿现象，以探讨其能垒。