论文标题
可溶纤维上的宝塔不稳定性（PI）
The pagoda instability (PI) on soluble fibers
论文作者
论文摘要
本文将可溶纤维插入液体时，提出了一种新的不稳定。通过液体润湿并溶解纤维后，移动接触线（MCL）会自发失去稳定性。因为纤维的雕刻形状看起来像中国宝塔，所以我们将这种不稳定性称为宝塔不稳定性（PI）。溶解和润湿的耦合导致其他特殊现象，即溶解诱导的射流流，并优化纤维形状等。我们提出了PI标准，并显示界面能量与化学势之间的竞争推论MCL运动和PI。相图用于汇总纤维的最终形状。通过进行原子力显微镜（AFM）测量，我们发现具有优化形状的纤维具有低粘附力的特征。使用优化的纤维可以减少毛细管在潮湿环境中测量AFM测量的70％影响。
This paper presents a new kind of instability when inserting a soluble fiber into liquid. After wetting and dissolving the fiber by the liquid, the moving contact line (MCL) spontaneously loses stability. Because the sculpted shape from fiber looks like a Chinese pagoda, we name this instability as pagoda instability (PI). Coupling of dissolution and wetting leads to other special phenomena, i.e. dissolving-induced jet flow, and optimizes the fiber shape, etc. We propose a criterion of PI and show the competition between interface energy and chemical potential deduce the MCL motion and PI. A phase diagram is used to summary the final shapes of fibers. By conducting atomic force microscope (AFM) measurement, we find the fiber with optimized-shape has the characteristics of low adhesion force. Using the optimized-fiber can decrease the 70% influence of capillary force for AFM measurement in humid environment.
