润湿
材料科学
弹性体
拉普拉斯压力
各向异性
复合材料
纳米技术
表面张力
光学
量子力学
物理
作者
Yan Li,Qiuya Zhang,Rui Chen,Yongsheng Yan,Zhenning Sun,Xiaofang Zhang,Dongliang Tian,Lei Jiang
出处
期刊:ACS Nano
[American Chemical Society]
日期:2021-11-29
卷期号:15 (12): 19981-19989
被引量:16
标识
DOI:10.1021/acsnano.1c07512
摘要
Direction-controlled wetting surfaces, special for lubricating oil infused anisotropic surfaces, have attracted great research interest in directional liquid collection, expelling, transfer, and separation. Nonetheless, there are still existing difficulties in achieving directional and continuous liquid transport. Herein, we present a strategy to achieve directional liquid transport on transparent lubricating oil infused elastomer film with V-shaped prisms microarray (VPM). The results reveal that the water wetting direction in the parallel and staggered arrangement of the VPM structure surface with lubricating oil infusion is the opposite, which is completely different from the wetting direction on the usual VPM surface in air. Moreover, asymmetric stretching can enhance or weaken the directional water wetting tendency on the lubricating oil infused VPM elastomer film and even can reverse the droplet wetting direction. In a closed moist environment, tiny droplets gradually coalesce and then slip away from the lubricating oil infused VPM surface to keep the surface transparent, due to the cooperation of imbalanced Laplace pressure, resulting from the anisotropic geometric structures, varying VPMs spacing, and gravity. Thus, this work provides a paradigm to design and fabricate a type of surface engineering material in the application fields of directional expelling, liquid collection, anti-biofouling, anti-icing, drag reduction, anticorrosion, etc.
科研通智能强力驱动
Strongly Powered by AbleSci AI