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首页> 外文期刊>Journal of Applied Polymer Science >A novel water-soluble, conducting polymer composite for mild steel acid corrosion inhibition
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A novel water-soluble, conducting polymer composite for mild steel acid corrosion inhibition

机译：一种新型的水溶性导电聚合物复合材料，可抑制轻度钢酸腐蚀

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摘要

A novel water-soluble conducting polymer composite, poly(vinyl alcohol-histidine) was synthesized from aqueous solution by free radical condensation using persulfate. The composite was characterized using UV-Visible, Fourier transform infrared, scanning electron microscopy, thermogravimetric analysis (TG/DTG), and differential scanning calorimetry techniques while its AC conductance was measured by LCZ analyzer. The inhibitive action of the composite on the corrosion behavior of mild steel in 1M HCl was studied by conventional weight loss method, potentiodynamic polarization studies (Tafel), linear polarization studies, and electrochemical impedance spectroscopy. The effects of inhibitor concentrations, exposure time, and temperature have been investigated. The corrosion rate, inhibition efficiency (IE), and other parameters have been evaluated for different inhibitor concentrations. The composite provided more than 95% IE at an optimum concentration of 0.6% by weight. The results showed the composite as an effective mixed type inhibitor. The adsorption of this inhibitor obeyed Temkin adsorption isotherm.
机译：用过硫酸盐通过自由基缩合从水溶液中合成了一种新型的水溶性导电聚合物复合材料，聚乙烯醇-组氨酸。使用紫外可见，傅立叶变换红外，扫描电子显微镜，热重分析（TG / DTG）和差示扫描量热技术对复合材料进行表征，同时使用LCZ分析仪测量其交流电导率。通过常规的失重法，恒电位极化研究（Tafel），线性极化研究和电化学阻抗谱研究了复合物对1M HCl中低碳钢腐蚀行为的抑制作用。已经研究了抑制剂浓度，暴露时间和温度的影响。对于不同的抑制剂浓度，已经评估了腐蚀速率，抑制效率（IE）和其他参数。该复合物以0.6重量％的最佳浓度提供了超过95％的IE。结果表明该复合物是有效的混合型抑制剂。该抑制剂的吸附遵循Temkin吸附等温线。

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