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首页> 外文期刊>Applied Surface Science >A significant reduction of ice adhesion on nanostructured surfaces that consist of an array of single-walled carbon nanotubes: A molecular dynamics simulation study
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A significant reduction of ice adhesion on nanostructured surfaces that consist of an array of single-walled carbon nanotubes: A molecular dynamics simulation study

机译：大量减少由单壁碳纳米管组成的纳米结构表面上的冰粘附：分子动力学模拟研究

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摘要

It is well recognized that excessive ice accumulation at low-temperature conditions can cause significant damage to civil infrastructure. The passive anti-icing surfaces provide a promising solution to suppress ice nucleation and enhance ice removal. However, despite extensive efforts, it remains a challenge to design anti-icing surfaces with low ice adhesion. Using all-atom molecular dynamics (MD) simulations, we show that surfaces with single-walled carbon nanotube array (CNTA) significantly reduce ice adhesion due to the extremely low solid areal fraction. It was found that the CNTA surface exhibits up to a 45% decrease in the ice adhesion strength in comparison with the atomically smooth graphene surface. The details of the ice detachment from the CNTA surface were examined for different water-carbon interaction energies and temperatures of the ice cube. Remarkably, the results of MD simulations demonstrate that the ice detaching strength depends linearly on the ratio of the ice-surface interaction energy and the ice temperature. These results open the possibility for designing novel robust surfaces with low ice adhesion for passive anti-icing applications. (C) 2017 Elsevier B.V. All rights reserved.
机译：众所周知，低温条件下过多的冰块会严重破坏民用基础设施。被动防冰表面提供了一种有前途的解决方案，可以抑制冰核并增强除冰能力。然而，尽管付出了巨大的努力，但是设计具有低冰粘附性的防冰表面仍然是一个挑战。使用全原子分子动力学（MD）模拟，我们显示具有单壁碳纳米管阵列（CNTA）的表面由于极低的固体面积分数而大大降低了冰的附着力。已经发现，与原子光滑的石墨烯表面相比，CNTA表面的冰粘附强度最多降低45％。对于不同的水-碳相互作用能和冰块的温度，检查了从CNTA表面分离冰的细节。值得注意的是，MD模拟的结果表明，冰的分离强度与冰-表面相互作用能和冰温度的比值线性相关。这些结果为为被动防冰应用设计低冰粘附力的新型坚固表面提供了可能性。 （C）2017 Elsevier B.V.保留所有权利。

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  • 来源
    《Applied Surface Science》 |2018年第15期|202-208|共7页
  • 作者

    Bao Luyao; Huang Zhaoyuan; Priezjev Nikolai V.; Chen Shaoqiang; Luo Kai; Hu Haibao;

  • 作者单位

    Northwestern Polytech Univ, Sch Marine Sci & Technol, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, Sch Marine Sci & Technol, Xian 710072, Shaanxi, Peoples R China;

    Wright State Univ, Dept Mech & Mat Engn, Dayton, OH 45435 USA;

    Xian Precis Machinery Res Inst, Xian 710075, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, Sch Marine Sci & Technol, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, Sch Marine Sci & Technol, Xian 710072, Shaanxi, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ice adhesion reduction; Nanostructured surfaces; Molecular dynamics;

    机译：减少冰附着;纳米结构表面;分子动力学;

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