超浸润表面对液体绕流的调控研究

项目名称： 超浸润表面对液体绕流的调控研究

项目编号： No.21503245

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 马杰

作者单位： 中国科学院理化技术研究所

项目金额： 22万元

中文摘要： 液体在弯曲表面或表面边缘处的绕流现象普遍存在于生产生活的各个方面。对于绕流的精确控制将有利于提高生活的便利性、提高生产的效率，具有重要的应用价值。以往表面浸润性对于绕流行为的影响没有得到足够的重视，然而，随着超浸润性表面构筑技术的发展和人们对于动态浸润特性的了解，表面浸润性对于绕流行为调控的潜力开始被人们认识。为此，本项目将从超浸润表面材料制备、调控技术的开发、原理探索等多个层次对绕流现象的调控进行研究，获得对于绕流现象的深入理解，通过材料的微纳米结构、浸润性以及外场等途径实现对于绕流现象的精确调控。本项目的目标是发展出2-3种新颖的、具有优良的绕流调控性能、且具有高可靠性的微纳米超浸润表面材料；系统地阐明超浸润性表面材料对绕流行为调控的内在规律；发展1-2种有效调控动态浸润性、进而调控绕流行为的外场调控手段，促进相关领域的科学研究和应用。

中文关键词： 微纳米结构；浸润性

英文摘要： The overflow behavior of liquid at a curved surface or a surface border is a common phenomenon in many circumstances of daily life and industry. Accurate control of overflow is beneficial for improving the convenience of life and efficiency of production, thus has great importance for applications. The effect of surface wettability on overflow behavior has not be paid enough attention in the past, however, as the development of construction techniques of superwettable surfaces and the understanding of the dynamic wetting properties, the potential of surface wettability on the control of overflow behaviors has gained recognition. On this basis, the current project will carry out research on the control of overflow behavior from aspects including the fabrication of superwettable surfaces, the development of control techniques, the exploration of control mechanisms, etc, and obtain deep understanding of the overflow phenomenon, realize accurate control of overflow by the micro/nano-structure and wettability of materials, and by the applied fields. The aim of the current project is to develop 2-3 types of novel surface materials that has high performance and reliability, systematically describe the mechanism of controlling overflow behaviors by superwettable materials, develop 1-2 type of field control methods to modify the overflow behavior and to improve the research and application of related fields.

英文关键词： micro/nano-structure;wettability