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- 2015
新型仿生微纳米界面微量流体输运调控材料
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Abstract:
生物表面从微纳米层次上已提供给人类一种多级次梯度结构的协同效应机制, 并展现出控制动态浸润性及液体传输的独特能力。基于这种机制, 设计了各种仿生的结构, 开发了制备仿生材料的新技术与方法。并将仿生理念引入到材料的制备中, 通过利用常见的高分子材料、响应高分子材料、掺杂的有机物/无机物复合材料, 可控制备了一系列新型一、二维度仿生微纳米界面材料。这些新型仿生微纳米界面材料从微、纳及宏观层次上体现了优越的浸润性调控功能, 如液滴驱动、水收集、防覆冰等, 其在微流控制、淡水采集、雾水工程、热量传递、浮尘过滤等领域有重要的应用前景。 Biological surfaces endow a multi-gradient collaborative effect from nano-/micro-levels for people, displaying the unique ability to control the dynamic wettability and fluid transport. Based on the multi-gradient mechanism, we designed various kinds of bioinspired or biomimetic structures, and developed the new technology and methods. We introduced the bioinspired concept into the fabrication of materials. By being used the universal polymers, response polymer, organic-inorganic composite materials, the novel bioinspired micro-interface/nano-interface materials in one-or two-dimensions can be controllably fabricated. These novel bioinspired materials display excellent fluid-controlling functions from micro-/nano-levels and macro-level, e.g., driving of droplet, water collection and anti-icing functions, which will bring important application prospect and reference value to micro-fluidics, fresh water acquirement, fog-water engineering, energy transform, dust filter and so on. 国家自然科学基金(21234001,21473007);国家"973"计划(2013CB933000)
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