Highly Floatable Superhydrophobic Metallic Assembly for Aquatic Applications.,ACS Applied Materials & Interfaces

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Highly Floatable Superhydrophobic Metallic Assembly for Aquatic Applications.
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2019-12-12 , DOI: 10.1021/acsami.9b15540
Zhibing Zhan ₁ , Mohamed ElKabbash ₁ , JinLuo Cheng ₂ , Jihua Zhang ₁ , Subhash Singh ₁ , Chunlei Guo ₁

Affiliation

Water-repellent superhydrophobic (SH) surfaces promise a wide range of applications, from increased buoyancy to drag reduction, but their practical use is limited. This comes from the fact that an SH surface will start to lose its efficiency once it is forced into water or damaged by mechanical abrasion. Here, we circumvent these two most challenging obstacles and demonstrate a highly floatable multifaced SH metallic assembly inspired by the diving bell spiders and fire ant assemblies. We study and optimize, both theoretically and experimentally, the floating properties of the design. The assembly shows an unprecedented floating ability; it can float back to the surface even after being forced to submerge under water for months. More strikingly, the assembly maintains its floating ability even after severe damage and piercing in stark contrast to conventional watercrafts and aquatic devices. The potential use of the SH floating metallic assembly ranges from floating devices and electronic equipment protection to highly floatable ships and vessels.

中文翻译：

适用于水上应用的高度漂浮的超疏水金属组件。

疏水性超疏水（SH）表面承诺了从增加浮力到减少阻力的广泛应用，但其实际使用受到限制。这是由于以下事实：SH表面一旦被迫进入水中或由于机械磨损而损坏，将开始失去效率。在这里，我们避开了这两个最具挑战性的障碍，并展示了一种高度可漂浮的多面SH金属组件，其灵感来自潜水钟形蜘蛛和火蚁组件。我们在理论上和实验上都研究和优化了设计的浮动特性。大会展示了空前的浮动能力；即使被迫淹没在水中数月之久，它也可能浮回水面。更惊人的是与传统的船只和水上设备形成鲜明对比的是，该组件即使在受到严重破坏和刺穿后仍能保持其浮动能力。SH浮动金属组件的潜在用途包括浮动设备和电子设备保护到高度浮动的船舶。

更新日期：2019-12-13

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