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首页> 外文期刊>Journal of Corrosion Science and Engineering >(v14preprint28)Corrosion inhibition behavior of Gum Acacia as natural occurring polymer for mild steel and synergistic effect of halide ions in H2SO4 medium
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(v14preprint28)Corrosion inhibition behavior of Gum Acacia as natural occurring polymer for mild steel and synergistic effect of halide ions in H2SO4 medium

机译：（v14preprint28）牙龈金合欢的腐蚀抑制行为作为天然存在的聚合物，用于温和的钢和H2SO4培养基中卤离子的协同作用

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摘要

The corrosion inhibition effect of Gum Acacia (GA) as green inhibitor was investigated by weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods and SEM observations for mild steel in H2SO4 (pH=1) medium . The results show that GA is a good inhibitor, and the adsorption of GA on metal surface obeys Temkin adsorption isotherm. The inhibitive effect of GA in addition of halide ions is found to promot at all the concentration of GA. Polarization curves show that GA acts as a mixed-type inhibitor. The results obtained from gravimetric experiments were in good agreement with the electrochemical methods results. Comprehensive adsorption of the inhibitor molecules on the mild steel surface was suggested based on the thermodynamic parameters and on the comparative FT-IR spectral analysis of pure and metal surface product. An inhibition mechanism was proposed in terms of strongly adsorption of inhibitor molecules on mild steel surface.
机译：通过重量损失，电位偏振和电化学阻抗光谱（EIS）和SEM观察H 2 SO 4（pH = 1）培养基，研究了牙龈金合欢（Ga）作为绿色抑制剂的腐蚀抑制作用。 结果表明，Ga是一个很好的抑制剂，以及Ga在金属表面Obeys Temkin吸附等温线的吸附。 发现Ga加入卤素离子的抑制作用促进Ga的所有浓度。 偏振曲线表明GA充当混合型抑制剂。 从重量实验获得的结果与电化学方法结果良好。 基于热力学参数和纯净金属表面产品的对比FT-IR光谱分析，提出了轻度钢表面上的抑制剂分子的综合吸附。 就强烈吸附了低于钢表面上的抑制剂分子而提出了一种抑制机理。

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