Koivuluoto Heli, Hartikainen Enni, Niemelä-Anttonen Henna
Materials Science and Environmental Engineering, Faculty of Engineering and Natural Sciences, Tampere University, 33720 Tampere, Finland.
Materials (Basel). 2020 Mar 21;13(6):1434. doi: 10.3390/ma13061434.
Surface engineering promotes possibilities to develop sustainable solutions to icing challenges. Durable icephobic solutions are under high interest because the functionality of many surfaces can be limited both over time and in icing conditions. To solve this, one potential approach is to use thermally sprayed polymer or composite coatings with multifunctional properties as a novel surface design method. In thermal spraying, coating materials and structures can be tailored in order to achieve different surface properties, e.g., wetting performance, roughness and protection against several weathering and wearing conditions. These, in turn, are beneficial for excellent icephobic performance and surface durability. The icephobicity of several different surfaces are tested in our icing wind tunnel (IWiT). Here, mixed-glaze ice is accreted from supercooled water droplets and the ice adhesion is measured using a centrifugal adhesion tester (CAT). The present study focuses on the icephobicity of thermally sprayed coatings. In addition, surface-related properties are evaluated in order to illustrate the correlation between the icephobic performance and the surface properties of differently tailored thermally sprayed coatings as well as compared those to other coatings and surfaces.
表面工程为开发应对结冰挑战的可持续解决方案提供了可能性。耐用的憎冰解决方案备受关注，因为许多表面的功能可能会随着时间推移以及在结冰条件下受到限制。为了解决这个问题，一种潜在的方法是使用具有多功能特性的热喷涂聚合物或复合涂层作为一种新颖的表面设计方法。在热喷涂过程中，可以对涂层材料和结构进行定制，以实现不同的表面特性，例如润湿性、粗糙度以及抵御多种风化和磨损条件的能力。这些特性反过来又有利于实现优异的憎冰性能和表面耐久性。我们在结冰风洞（IWiT）中测试了几种不同表面的憎冰性。在此，混合釉冰由过冷水滴凝结而成，并用离心附着力测试仪（CAT）测量冰的附着力。本研究重点关注热喷涂涂层的憎冰性。此外，还对与表面相关的特性进行了评估，以阐明不同定制热喷涂涂层的憎冰性能与表面特性之间的相关性，并将其与其他涂层和表面进行比较。
