浸润性可控表面结构的飞秒激光微纳制造基础研究

Novel wettability surface microstructures, due to they can realize controllable hydrophilic or hydrophobic properties, anisotropic wetting, directional wetting or gradient tension distribution, have promising applications in traffic, architecture, medicine, biochips and micro-electromichanical systems. However, conventional micromachining techniques are difficult to meet the requirements of fabricating the complex gradient and multi-scale micro/nanostructures, which are essential to control the surface wettabilities. Therefore, it demands to investigate an innovative approach to produce the wettability-controllable surfaces with multi-scale micro/nanostructures. This project concentrates on the study of the key scientific issues of wettability-controllable surfaces, such as the formation mechanism of micro/nanostructures induced by femtosecond laser, the relationships between the micro/nanostructures & surface wettabilities and their tuning methods, the influences of the dimension effects and structural distributions of the multi-scale micro/nanostructures on the surface wettabilities. Through the aforementioned studies, it will reveal the nonlinear dynamic processes of the femtosecond-laser-matter interactions and the microscoptic mechenisms of the micro/nanostructural evolutions, and clarify the influence mechanisms of the dimension effects and spatial structural distributions of the multi-scale compound structures on surface wettabilities. Based on this, the key technologies in the novel multi-scale manufactring method for fabricating the wettability-controllable surfaces will be investigated. This manufacturing method will promote new theories and technologies for generating the innovative smart structures for controlling the surface wettabilities.

可调控表面亲/疏水性、浸润各向异性或可实现方向润湿和梯度张力特性的新型浸润性可控表面结构在交通、建筑、医药、生物芯片及微机电系统等方面都有着十分重要的应用价值。而传统的微制造工艺难以满足浸润性调控所需的复杂微纳结构梯度与跨尺度制造的要求，因此探索浸润性可控表面结构微纳跨尺度制造的新方法显得尤为迫切。本项目拟通过深入探索材料在飞秒激光作用下微/纳米功能结构的形成机理、微/纳结构与浸润性之间联系与调控方法、多尺度结构中功能尺寸效应和空间结构构造对材料表面浸润性的影响机制等关键科学问题，以揭示飞秒激光和材料相互作用的非线性动力学过程与表面微/纳结构演变的微观机理，探明（宏/微/纳）多尺度结构中功能尺寸效应和空间结构构造对材料表面浸润性的影响机制，获得浸润性可控表面结构跨尺度制造的新方法和关键技术，并力争通过该方法在新型浸润性可控智能表面结构设计和制造的新原理和新技术方面取得突破。

浸润性可控表面结构在交通、建筑、医药、生物芯片及微机电系统等方面都有着十分重要的应用价值。传统的微制造工艺难以满足浸润性调控所需的复杂微纳结构梯度与跨尺度制造的要求，探索浸润性可控表面结构微纳跨尺度制造的新方法显得尤为迫切和重要。本项目拟通过深入探索材料在飞秒激光作用下微/纳米功能结构的形成机理、微/纳结构与浸润性之间联系与调控方法、多尺度结构中功能尺寸效应和空间结构构造对材料表面浸润性的影响机制等关键科学问题，以揭示飞秒激光和材料相互作用的非线性动力学过程与表面微/纳结构演变的微观机理，探明（宏/微/纳）多尺度结构中功能尺寸效应和空间结构构造对材料表面浸润性的影响机制，获得浸润性可控表面结构跨尺度制造的新方法和关键技术，通过该方法在新型浸润性可控智能表面结构设计和制造的新原理和新技术方面取得突破。通过本项目研究，共发表SCI论文50篇，获得发明专利授权7项。