鞣酸转化涂层中的水滑石对铁制品的影响

IF 2.2 4区化学 Q2 Engineering

Chemical Papers Pub Date : 2024-10-23 DOI:10.1007/s11696-024-03746-2

Roman Košťúr, Viera Dujnič, Katarína Tomanová, Andrea Červenková, Matilda Zemanová

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引用次数: 0

摘要

铁质文物的表面处理需要涂上适当的保护涂层，以防止进一步腐蚀变质。鞣酸盐涂层是首选的铁/钢保护剂，其表面具有理想的黑色外观。在这项工作中，研究了用氢铝酸盐对单宁酸盐涂层进行改性，以提高保护能力。开发了表面处理方法，并研究了工艺参数：氢化talcite 添加量、涂敷层、浸泡时间和储备溶液的 pH 值。通过拉曼光谱、EDX 测量和电化学表征等多种方法对处理后的表面进行了表征，并通过循环 QUV 测试对表面处理的质量进行了评估。加入水滑石对转化涂层质量的影响得到了证实，并通过涂层中加入铝得到了解释。提出了改性转换涂层的机理。

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Effect of hydrotalcites in tannate conversion coatings for iron artefacts

The surface treatment of iron artefacts requires an application of the proper conservation coating to prevent further corrosion deterioration. Tannate coating is preferred as a conservation agent of iron/steel with the desired black appearance of the surface. In this work, the modification of the tannate coating with hydrotalcites to improve conservation ability was studied. Methodology of the surface treatment was developed, and process parameters: hydrotalcite addition, applied layers, immersion time and pH of the stock solution were studied. The treated surface was characterised by various methods e.g. Raman spectroscopy, EDX measurements and electrochemical characterisation, and the quality of the surface treatment was evaluated with respect to cyclic QUV test. Effect of hydrotalcite addition on quality of the conversion coating was confirmed and explained by incorporation of Al in the coating. Mechanism of the modified conversion coating was proposed.

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来源期刊

Chemical Papers Chemical Engineering-General Chemical Engineering

CiteScore

3.30

自引率

4.50%

发文量

590

期刊介绍： Chemical Papers is a peer-reviewed, international journal devoted to basic and applied chemical research. It has a broad scope covering the chemical sciences, but favors interdisciplinary research and studies that bring chemistry together with other disciplines.