PDF(Pubmed)
Abstract：
Ice protection techniques have attracted significant interest, notably in aerospace and wind energy applications. However, the current solutions are mostly costly and inconvenient due to energy-intensive and environmental concerns. One of the appealing strategies is the use of passive icephobicity, in the form of coatings, which is induced by means of several material strategies, such as hydrophobicity, surface texturing, surface elasticity, and the physical infusion of ice-depressing liquids, etc. In this review, surface-roughness-related icephobicity is critically discussed to understand the challenges and the role of roughness, especially on superhydrophobic surfaces. Surface roughness as an intrinsic, independent surface property for anti-icing and de-icing performance is also debated, and their interdependence is explained using the related physical mechanisms and thermodynamics of ice nucleation. Furthermore, the role of surface roughness in the case of elastomeric or low-modulus polymeric coatings, which typically instigate an easy release of ice, is examined. In addition to material-centric approaches, the influence of surface roughness in de-icing evaluation is also explored, and a comparative assessment is conducted to understand the testing sensitivity to various surface characteristics. This review exemplifies that surface roughness plays a crucial role in incorporating and maintaining icephobic performance and is intrinsically interlinked with other surface-induced icephobicity strategies, including superhydrophobicity and elastomeric surfaces. Furthermore, the de-icing evaluation methods also appear to be roughness sensitive in a certain range, indicating a dominant role of mechanically interlocked ice.
摘要：
防冰技术引起了人们的极大兴趣，特别是在航空航天和风能应用中。然而,由于能源密集型和环境问题，目前的解决方案大多是昂贵且不方便的。其中一个吸引人的策略是使用被动憎恶，以涂层的形式，这是由几种物质策略引起的，如疏水性，表面纹理，表面弹性，和物理注入抑冰液体，等。在这次审查中,严格讨论了与表面粗糙度相关的疏冰性，以了解粗糙度的挑战和作用，特别是在超疏水表面上。表面粗糙度作为一个内在的，抗冰和除冰性能的独立表面性能也有争议，利用冰核形成的相关物理机制和热力学来解释它们的相互依存关系。此外，在弹性体或低模量聚合物涂层的情况下，表面粗糙度的作用，这通常会促使冰容易释放，正在检查。除了以材料为中心的方法，还探讨了表面粗糙度在除冰评估中的影响，并进行比较评估以了解对各种表面特性的测试灵敏度。这篇综述举例说明了表面粗糙度在合并和保持疏冰性能中起着至关重要的作用，并且与其他表面诱导的疏冰性策略内在地相互关联。包括超疏水性和弹性体表面。此外，除冰评估方法在一定范围内也显得粗糙度敏感，表明机械互锁冰的主导作用。
