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首页> 外文期刊>International Journal of Electrochemical Science >Advanced Anticorrosion Coatings Prepared from Polybenzoxazine/α-zirconium Phosphate Nanocomposites
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Advanced Anticorrosion Coatings Prepared from Polybenzoxazine/α-zirconium Phosphate Nanocomposites

机译：聚苯并恶嗪/α-磷酸锆纳米复合材料制备的高级防腐涂料

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摘要

In this study, we present the first successful application of polybenzoxazine/α-zirconium phosphate (PBa/α-ZrP) nanocomposites for corrosion protection. α-ZrP nanoplatelets were exfoliated by a polyetheramine surfactant (Jeffamine M1000), and the α-ZrP dispersed well in the PBa matrix with no substantial agglomeration. PBa/α-ZrP composite coatings were also prepared on the carbon steel substrate, and their anticorrosive properties were investigated in 3.5 wt% NaCl solution via electrochemical impedance spectroscopy and polarization curves. The results reveal that well- dispersed α-ZrP nanoplatelets in the PBa matrix effectively enhanced the corrosion protection ability of the coatings, attributing to the extended diffusion path of the corrosive agents in the coating to reach to the protected metal surface. The samples with 5 wt% α-ZrP nanoplatelets showed a corrosion rate of 0.108 mm per year for carbon steel after 8-day immersion, and the corrosion rate was less than half of that of the neat pristine PBa sample. These results of this study reveal that the incorporation of α-ZrP in the PBa matrix efficiently improved the corrosion protection of the PBa composite.
机译：在这项研究中，我们介绍了聚苯并恶嗪/α-磷酸锆（PBa /α-ZrP）纳米复合材料在腐蚀防护方面的首次成功应用。 α-ZrP纳米片被聚醚胺表面活性剂（Jeffamine M1000）剥落，并且α-ZrP很好地分散在PBa基质中，基本没有团聚。在碳钢基底上还制备了PBa /α-ZrP复合涂层，并通过电化学阻抗谱和极化曲线研究了其在3.5 wt％NaCl溶液中的防腐性能。结果表明，在PBa基体中分散良好的α-ZrP纳米片有效地增强了涂层的腐蚀防护能力，这归因于腐蚀剂在涂层中的延伸扩散路径达到了被保护的金属表面。具有5 wt％α-ZrP纳米片的样品在浸入8天后对碳钢的腐蚀速率为每年0.108 mm，腐蚀速率小于纯净PBa样品的腐蚀速率的一半。这项研究的这些结果表明，在PBa基体中掺入α-ZrP可以有效地改善PBa复合材料的防腐性能。

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