耐用防结冰涂层材料获突破性进展

休斯顿大学研究人员在在防粘冰材料方面取得进展,根据他们的理论模型(stress-localization),可设计和调整材料性质,他们创建了合适的有机硅聚合物涂层,可以轻松使表面排斥结冰。

耐用防结冰材料

(图片来源University of Houston)

这种新型的防冰涂层材料表现出极低的冰粘附力,并具有持久的机械、耐化学、耐紫外和耐环境性能,可喷涂使用,几乎适用于任何表面,据试验模拟,这种材料可耐用十年。材料有望应用于飞机等。与其它材料相比,这种材料不仅耐用性好,而且不需要使用其它润滑液体浸润(Non-wetting, liquid-infused and hydrated surfaces)。材料有望在飞机等领域应用。

演示如下,通过喷涂在金属块表面形成防冰涂层,后滴水结冰,可轻易将冰块移动:

演示来源University of Houston

上述资料来源介绍:
http://www.uh.edu/news-events/stories/2019/january-2019/01142019ghasemi-ice-phobic.php

仅供参考学习。

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参考文献:Peyman Irajizad et al. Stress-Localized Durable Icephobic Surfaces, Materials Horizons (2019). DOI: 10.1039/C8MH01291A

Abstract

Icephobic surfaces have a critical footprint on human daily lives in cold climates ranging from aviation systems and infrastructures to energy systems. However, creation of these surfaces for low-temperature applications remains elusive. Non-wetting, liquid-infused and hydrated surfaces have inspired routes for development of icephobic surfaces. However, high ice adhesion strength (~20-100 kPa) and subsequent ice accretion, low long-term mechanical and environmental durability, and high production cost have restricted their applications. Here, we cast fundamentals of a new physical concept called stress-localization to develop icephobic surfaces with ice adhesion in order of 1 kPa and exceptional mechanical, chemical and environmental durability.

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