报告题目：Making and measuring the most slippery water-repellent surfaces
报 告 人：Robin Ras（芬兰阿尔托大学,应用物理系教授）
报告时间：2024年9月23日（星期一）下午2:30–4:30
报告地点：机械与汽车工程学院29号楼3楼会议室
主办单位：机械与汽车工程学院
报告人简介：
Robin Ras，芬兰阿尔托大学（北欧著名学府/QS排名109）应用物理系教授，曾任芬兰科学院Research Fellow，主要从事软物质、表界面润湿方面的研究工作，在Nature（封面）、Science、Nature Materials、Nature Chemistry、PNAS等国际顶级期刊发表高水平论文150余篇，谷歌学术引用量16000+，H指数59，曾获首届安东帕科研奖（仪器分析与表征）。
报告摘要：
Nature uses water-repellent surfaces for millions of years, giving inspiration for developing synthetic water-repellent coatings. Liquid-like surfaces provide low droplet friction due to dynamics of molecular surface layers. Droplet friction is low on superhydrophobic surfaces because the droplet is essentially supported on an air layer trapped between microscopic roughness features. Here I present our latest advance in creating the world’s most slippery surface.
Contact angle goniometry is the most commonly used method for wetting characterization, however the inaccuracy of the measurement is surprisingly large especially for superhydrophobic surfaces. Here I describe the challenges in surface wetting characterization and present several force-based methods to directly probe droplet adhesion and droplet friction.
