铝管掺杂改性杂化膜的制备及其腐蚀性能

Q4 Chemical Engineering

腐蚀科学与防护技术 Pub Date : 2014-07-29 DOI:10.11903/1002.6495.2013.233

W. Tian, Rui-lin Man, Xiong Huang, F. He

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引用次数: 0

摘要

以硅酸乙酯(TEOS)和乙烯基三乙基氧基硅烷(KH151)为前驱体，采用溶胶-凝胶法制备了掺杂铈的杂化溶胶，再以1.5×10-3mol/L的Ce(NO3)3掺杂得到掺铈的杂化溶胶，并用浸渍法在铝管上涂覆该掺杂铈的杂化溶胶。青石滴液试验、中性盐雾试验和电化学测试结果表明，涂层掺杂改性杂化膜具有优于常规铬酸盐钝化膜的腐蚀性能。涂层的红外光谱显示，涂层中存在不同类型的Si-O-Si共价键和有机官能团C=C共价键，这可能增强了涂层的疏水性。SEM检测表明，成形涂层致密、均匀、光滑。

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Preparation and Corrosion Performance of a Doping Modified Hybrid Film on Aluminum Tube

A hybrid sol was prepared by sol-gel technique with precursors of ethylsilicate(TEOS)and vinyltriethoxysilane(KH151), and which then was further doped with 1.5×10-3mol/L Ce(NO3)3to get a Ce-doped hybrid sol. A coating of this Ce-doped hybrid sol was prepared on aluminum tube by dipping method. Results of bluestone drips test, neutral salt spray test and electrochemical measurement showed that the coating doping modified hybrid film possessed superior corrosion performance rather than the conventional chromate passivation film. The infrared spectrum of the coating revealed that there existed different types of Si—O—Si covalent bonds and organic functional groups C=C covalent bonds, which might enhance the hydrophobicity of the coating. Finally SEM examination showed that the formed coating was dense, uniform and smooth.

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来源期刊

腐蚀科学与防护技术 Chemical Engineering-Chemical Engineering (all)

CiteScore

0.60

自引率

0.00%

发文量

2399

期刊介绍： Corrosion Science and Protection Technology is approved by the General Administration of Press and Publication of the State Council, the Chinese Academy of Sciences, the Chinese Academy of Sciences Institute of Metals organized by the domestic and international public circulation of national periodicals metal surface treatment academic journals. The journal is a professional and technical publication. It reports the scientific and technological achievements in the field of metal corrosion and protection, and publishes research reports, reviews, technical reports, research briefs, failure analysis, experience exchange, etc. The readers are engaged in the field of metal corrosion and protection. The target readers are scientific and technological personnel engaged in metal corrosion and protection and teachers and students of related professional colleges and universities. Corrosion Science and Protection Technology is indexed in CSCD, CSTPCD, CA,MA,SA and other authoritative databases.