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Abstract：
It is of great significance to grasp the role of surface topography in de-icing, which however remains unclear yet. Herein, four textured surfaces are developed by regulating surface topography while keeping surface chemistry and material constituents same. Specifically, nano-textures are maintained and micro-textures are gradually enlarged. The resultant ice adhesion strength is proportional to a topography parameter, i.e. areal fraction of the micro-textures, owing to the localized bonding strengthening, which is verified by ice detachment simulation using finite element method. Moreover, the decisive topography parameter is demonstrated to be determined by the interfacial strength distribution between ice and test surface. Such parameters vary from paper to paper due to different interfacial strength distributions corresponding to respective situations. Furthermore, since hydrophobic and de-icing performance may rely on different topography parameters, there is no certain relationship between hydrophobicity and de-icing.
The role of surface topography in de-icing is verified to be determined by the interfacial strength distribution between ice and surface experimentally and numerically, unveiling the relationship between hydrophobicity and de-icing.
The role of surface topography in de-icing is verified to be determined by the interfacial strength distribution between ice and surface experimentally and numerically, unveiling the relationship between hydrophobicity and de-icing.
摘要：
掌握地表形貌在除冰中的作用具有重要意义,然而，目前尚不清楚。在这里，通过调节表面形貌，同时保持表面化学和材料成分相同，可以开发四个纹理表面。具体来说,纳米织构得到保持，微观织构逐渐扩大。所得的冰粘附强度与地形参数成正比，即微观纹理的面积分数，由于局部粘结加强，用有限元方法进行除冰模拟验证。此外，决定性的形貌参数被证明是由冰和测试表面之间的界面强度分布决定的。由于对应于各自情况的不同界面强度分布,这些参数因纸而不同。此外，由于疏水和除冰性能可能依赖于不同的地形参数，疏水性和除冰之间没有一定的关系。
通过实验和数值验证了表面形貌在除冰中的作用是通过冰与表面之间的界面强度分布来确定的，揭示疏水性和除冰之间的关系。
通过实验和数值验证了表面形貌在除冰中的作用是通过冰与表面之间的界面强度分布来确定的，揭示疏水性和除冰之间的关系。
