【摘要】 研究了超疏水表面上再结冰现象，分析了基板温度对润湿性的影响以及再结冰对表面防冰性能的影响。观察到从不同高度融化位置的再结冰形态有差异，融化线处于较高位置可以形成尖端，融化线处于中间及以下位置时，在融化线处形成清晰的边界，并在边界边缘产生不规则的小冰晶。融化线位置越低，边界就越明显。再结冰时超疏水表面的防结冰性能变得极弱，冻结延迟时间比单次冻结时小一个数量级，成核温度范围为-2～-6?C。更多还原

【Abstract】 The re-icing phenomenon on the superhydrophobic surface was investigated. The effect of substrate temperature on wettability and the effect of re-icing on the anti-icing performance of the surface were analyzed. It is observed that there are differences in the re-icing morphology from the melting position of different heights. The melting line at a higher position can form a tip. When the melting line is in the middle and lower positions, a clear boundary is formed at the melting line, and irregular small ice crystals are generated at the boundary edge. The lower the melting line is, the more obvious the boundary is. The anti-icing performance of the superhydrophobic surface becomes extremely weak during re-icing. The freezing delay time is one order of magnitude smaller than the first icing delay time, and the nucleation temperature range is-2 ～-6?C.更多还原