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首页> 外文期刊>Applied Surface Science >Nanocomposite Of Polypyrrole And Alumina Nanoparticles As A Coating Filler For The Corrosion Protection Of Aluminium Alloy 2024-t3
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Nanocomposite Of Polypyrrole And Alumina Nanoparticles As A Coating Filler For The Corrosion Protection Of Aluminium Alloy 2024-t3

机译：聚吡咯和氧化铝纳米粒子的纳米复合材料作为2024-t3铝合金防腐的涂料填充剂

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摘要

Aluminium (Al) alloys such as 2024-T3 are widely used in industry as low weight construction materials with excellent mechanical properties. Until recently corrosion protection of Al alloys was carried out with coatings containing hexavalent chromium (Cr~(6+)). However, Cr~(6+) is a health and environmental hazard and has to be replaced. Intrinsically conducting polymer (ICP) technology is the promising alternative to chromate coating technology because of good corrosion protection properties of ICPs, their moderate cost and good environmental compatibility. In this paper we report successful attempt of making nanocomposite comprised of alumina nanoparticles modified by polypyrrole for the purpose of corrosion protection of Al alloy. Modified nanoparticles were used as coating filler. Coating was designated to perform as an active barrier to electrolyte diffusion. Properties of the coating were examined by adhesion test, electrochemical impedance spectroscopy, X-rays elemental analysis, scanning electron microscopy, transmission electron microscopy, and Fourier transform infrared spectroscopy.
机译：诸如2024-T3之类的铝（Al）合金在工业上被广泛用作具有优异机械性能的低重量建筑材料。直到最近，对含六价铬（Cr〜（6+））的涂层进行铝合金的腐蚀防护。但是，Cr〜（6+）是对健康和环境的危害，必须更换。本征导电聚合物（ICP）技术是铬酸盐涂层技术的有前途的替代方法，因为ICP具有良好的防腐蚀性能，适中的成本和良好的环境相容性。在本文中，我们报告了成功制备纳米复合材料的成功尝试，该复合材料由聚吡咯改性以用于铝合金的防腐。改性的纳米颗粒用作涂料填料。涂层被指定为对电解质扩散的有效阻挡层。通过附着力测试，电化学阻抗谱，X射线元素分析，扫描电子显微镜，透射电子显微镜和傅立叶变换红外光谱检查涂层的性能。

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