ABSTRACT

Mechanically robust superhydrophobic (SHP) and icephobic performances are highly needed for an anti-icing surface in practical applications. Here, a SHP coating is prepared on the aluminium (Al) substrate using hydrothermal reaction and subsequent modification of hexadecyltrimethoxysilane, showing a water contact angle larger than 158° and a sliding angle (SA) less than 5°. This SHP coating displays a robust hydrophobic performance in acidic or alkaline solutions, after sand abrasion and consecutive icing/deicing cycles. It largely reduces ice adhesive strength and delays starting icing time on Al. Therefore, this work may shine some light in engineering aluminium-based materials to avoid ice accumulation.

摘要

在实际应用中，防冰表面非常需要机械坚固的超疏水（SHP）和疏冰性能。在这里，使用水热反应和十六烷基三甲氧基硅烷的后续改性在铝 (Al) 基材上制备了 SHP 涂层，显示出大于 158° 的水接触角和小于 5° 的滑动角 (SA)。这种 SHP 涂层在酸性或碱性溶液中，经过砂磨和连续的结冰/除冰循环后，显示出强大的疏水性能。它大大降低了冰的粘合强度并延迟了铝上的开始结冰时间。因此，这项工作可能会为工程铝基材料带来一些亮点，以避免积冰。