Customizing multiple superlyophobic surfaces in water-oil-air systems: From controllable preparation to smart switching via manipulating heterogeneous surface chemistry
Customizing multiple superlyophobic surfaces in water-oil-air systems: From controllable preparation to smart switching via manipulating heterogeneous surface chemistry
复制标题
在水-油-空气系统中定制多个超疏液表面：通过操纵异质表面化学从可控制备到智能切换
DOI：
10.1016/j.apsusc.2022.155028
复制
发表时间：
2022-09-28
影响因子：
6.7
通讯作者：
Liu, Weimin
中科院分区：
文献类型：
--
作者：
Tie, Lu;Li, Jing;Liu, Weimin
超疏水性被细分为多个极端润湿状态，在特定的界面应用中具有独特的优势。可控地准备和智能切换多个超级憎恶表面是重要的，但仍然是一个挑战。本文提出了一种灵活的双层策略来构建三种类型的超疏水表面，这些表面具有可控的水滴和油滴在空气中的极端润湿行为，同时最终表现出水下的超疏水和水下的超疏油。一种坚固的疏水性聚丙烯酸酯胶粘剂可以方便地调节极低表面能的C-F链和亲水的二氧化钛溶胶所产生的非均相表面化学。此外，溶剂触发过程和紫外线照射可以在这些精细的超湿状态之间进行智能切换。在刺激下，双分子层组分的重构进一步调节了非均相表面化学。利用超疏水和水下超疏油的特性，智能膜实现了有效的按需乳化分离。这项研究提供了一种在细分的多个超疏水性中定制具有可切换超润湿性的智能表面的方法。
Superlyophobicity that is being subdivided to multiple extreme wetting states has unique superiority in a specific interfacial application. Controllable preparation and smart switching of multiple superlyophobic surfaces are significant but remain a challenge. Here a flexible bilayer strategy is presented to construct three kinds of multiple superlyophobic surfaces with controllable extreme wetting behaviors of water and oil droplets in air while ultimately showing underoil superhydrophobicity and underwater superoleophobicity. A robust hydro-phobic polyacrylate adhesive can be used expediently to adjust the heterogeneous surface chemistry resulting from extremely-low-surface-energy C-F chain and water-loving TiO2 sol. Moreover, solvent-triggered process and ultraviolet irradiation enable smart switching among these fine superwetting states. Under the stimuli, the heterogeneous surface chemistry is further regulated by reconstruction of the bilayer components. Utilizing the superhydrophobic and underwater superoleophobic properties, the smart membrane realizes effective on -demand emulsion separation. This study provides an approach to customize smart surfaces with switchable superwettability among subdivided multiple superlyophobicity.