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首页> 外文期刊>RSC Advances >Influence of ambient conditions on the evolution of wettability properties of an IR-, ns-laser textured aluminium alloy
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Influence of ambient conditions on the evolution of wettability properties of an IR-, ns-laser textured aluminium alloy

机译：环境条件对IR-，NS激光纹理铝合金润湿性润湿性性能演化的影响

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摘要

Micro cell structures of different sizes were patterned using a nanosecond near-infrared laser source on Al2024 aluminium alloy plates with 2 mm thickness. The influence of laser parameters on the shape and size of the produced patterns were studied together with the evolution of wettability properties over time for different storage conditions. Samples were found to be superhydrophobic from a single step laser patterning, requiring no further treatment. Exposure to ambient air was shown to be a key factor in the property changes of the samples over time. The produced surface patterns with different laser parameter settings were correlated with the contact angle measurements, revealing a great influence of the amount of recast material on the hydrophobic properties. X-Ray photoelectron spectroscopy was used to study the impact of surface chemistry changes on hydrophobicity, analysis of elemental composition proved that chemisorbed organic molecules present in the ambient air were responsible for the hydrophilic to superhydrophobic transition.
机译：使用2mm厚度的Al2024铝合金板上使用纳秒近红外激光源图案化不同尺寸的微电池结构。随着时间的推移，研究了激光参数对产生的图案的形状和尺寸的影响，以及不同的储存条件。发现样品是超疏水的来自单步激光图案化，不需要进一步处理。暴露于环境空气被认为是样品随时间变化的关键因素。具有不同激光参数设置的所产生的表面图案与接触角测量相关，揭示重塑材料量对疏水性质的影响很大。 X射线光电子能谱用于研究表面化学改变对疏水性的影响，分析了元素组合物的分析，证明了环境空气中存在的化学吸附有机分子对超疏水转变的亲水性负责。

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  • 来源
    《RSC Advances》 |2017年第63期|共11页
  • 作者

    Cardoso J. T.; Garcia-Giron A.; Romano J. M.; Huerta-Murillo D.; Jagdheesh R.; Walker M.; Dimov S. S.; Ocana J. L.;

  • 作者单位

    Univ Politecn Madrid UPM Laser Ctr Ctra Valencia Km 7-3 Madrid 28031 Spain;

    Univ Birmingham Sch Mech Engn Birmingham B15 2TT W Midlands England;

    Univ Birmingham Sch Mech Engn Birmingham B15 2TT W Midlands England;

    Univ Politecn Madrid UPM Laser Ctr Ctra Valencia Km 7-3 Madrid 28031 Spain;

    Univ Politecn Madrid UPM Laser Ctr Ctra Valencia Km 7-3 Madrid 28031 Spain;

    Univ Warwick Dept Phys Coventry CV4 7AL W Midlands England;

    Univ Birmingham Sch Mech Engn Birmingham B15 2TT W Midlands England;

    Univ Politecn Madrid UPM Laser Ctr Ctra Valencia Km 7-3 Madrid 28031 Spain;

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  • 正文语种 eng
  • 中图分类 化学;
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