聚乙烯吡咯烷酮在氯醋酸盐溶液和模型层水中对碳钢腐蚀的抑制作用

IF 0.7 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science Pub Date : 2024-02-06 DOI:10.1007/s11003-024-00769-8

Z. V. Slobodyan, L. A. Mahlatiuk, R. B. Kupovych, N. Yo. Sobodosh

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引用次数: 0

摘要

采用重量法和电化学法研究了分子质量分别为 12 600 和 28 000 的聚乙烯吡咯烷酮（PVP）在 0.2、0.5 和 1.0 g/dm3 的浓度下对 20 号钢在氯醋酸盐溶液和模型地层水中的腐蚀速率的影响。在动态条件下，当两种环境中的 PVP 浓度均为 0.5 g/dm3 时，钢材的腐蚀速率都受到了最大程度的抑制。将抑制剂浓度进一步提高到 1.0 g/dm3 时，氯乙酸溶液中的保护程度比地层水中的保护程度降低得更明显。分子质量较高的 PVP 具有更高的保护性能，这是能够线性吸附和球状吸附的聚合物的典型特征。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Inhibition of Carbon Steel Corrosion by Polyvinylpyrrolidone in Chloride-Acetate Solution and in Model Stratal Water

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Inhibition of Carbon Steel Corrosion by Polyvinylpyrrolidone in Chloride-Acetate Solution and in Model Stratal Water

The influence of polyvinylpyrrolidone (PVP) with molecular mass of 12 600 and 28 000 at concentrations of 0.2; 0.5 and 1.0 g/dm³ on the corrosion rate of 20 steel in the chloride-acetate solution and in the model stratal water was investigated by gravimetric and electrochemical methods. Under dynamic conditions maximum inhibition of the steel corrosion rate was observed at a PVP concentration of 0.5 g/dm³ in both environments. A further increase in inhibitor concentration to 1.0 g/dm³ reduces the degree of protection more significantly in chloride-acetate solution than in the stratal water. The PVP with a higher molecular mass reveals higher protective properties, which is typical of polymers capable of adsorbing both linearly and in a ball.

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来源期刊

Materials Science 工程技术-材料科学：综合

CiteScore

1.60

自引率

44.40%

发文量

审稿时长

4-8 weeks

期刊介绍： Materials Science reports on current research into such problems as cracking, fatigue and fracture, especially in active environments as well as corrosion and anticorrosion protection of structural metallic and polymer materials, and the development of new materials.