Surface-Embedding of Functional Micro-/Nanoparticles for Achieving Versatile Superhydrophobic Interfaces
Surface-Embedding of Functional Micro-/Nanoparticles for Achieving Versatile Superhydrophobic Interfaces
复制标题
功能性微/纳米粒子的表面嵌入以实现多功能超疏水界面
DOI：
10.1016/j.matt.2019.03.009
复制
发表时间：
2019-09-04
期刊：
影响因子：
18.9
通讯作者：
Jiang, Lei
中科院分区：
文献类型：
--
作者：
Li, Zhe;Cao, Moyuan;Jiang, Lei
虽然有许多方法被应用于获得超疏水基板，但开发一种将任意材料转化为拒水表面的通用方法仍然是一个挑战。在这里，我们报告了功能微纳米级粒子的直接表面嵌入适用于制造多功能超疏水界面，即“胶+粉”方法。与以往对制备此类表面的理解不同，嵌入颗粒的固有润湿性对所制备表面的抗润湿能力没有影响。相反，微观结构的大小和层次被认为是令人满意的疏水性的决定性因素，即更小和更粗糙的颗粒促进更好的疏水性。17种类型的颗粒被选择用于制造不同的表面，这些表面表现出令人兴奋的功能，如导电涂层、液滴捕获、ph敏感表面和多功能漂浮物。我们设想当前的研究结果应该为纳米材料与超疏水界面的集成提供一种简化的方法，并为具有超润湿性的功能材料的开发提供新的思路。
Although numerous methods have been applied to obtain superhydrophobic substrates, it is still a challenge to develop a universal method for converting arbitrary materials to water-repellent surfaces. Here, we report that direct surface-embedding of functional micro- and nanoscale particles is applicable to fabrication of versatile superhydrophobic interfaces, namely a "glue + powder" approach. Differing from previous understanding of preparing such surfaces, the intrinsic wettability of embedded particles exerts no influence on the anti wetting ability of prepared surfaces. Instead, the size and hierarchy of microstructure has been considered decisive in the satisfactory liquid repellency, i.e., smaller and rougher particles promote better hydrophobicity. Seventeen types of particles were selected for fabricating diverse surfaces that exhibit exciting functions such as conductive coating, droplet catching, pH-sensitive surface, and multifunctional floater. We envision that the current findings should provide a simplified way to integrate nanomaterials with superhydrophobic interfaces and stimulate new thinking for development of functional materials possessing superwettability.