Enhancement of the erosion-corrosion resistance of Dacromet with hybrid SiO2 sol-gel
文献类型：期刊论文
| 作者 | J. G. Liu ; G. P. Gong ; C. W. Yan |
| 刊名 | Surface & Coatings Technology
 |
| 出版日期 | 2006 |
| 卷号 | 200期号:16-17页码:4967-4975 |
| 关键词 | Dacromet erosion-corrosion resistance hybrid sol-gel gamma-MAPTS composite coatings 2024-t3 |
| ISSN号 | 0257-8972 |
| 中文摘要 | A hybrid SiO2 gel/Dacromet composite coating system was designed and prepared by brushing technique from nano-scale organofunctional silica sol oil Dacromet-coated carbon steel to enhance the erosion-corrosion resistance of the Dacromet. This particular silica sol was synthesized by the acid catalyzed hydrolysis with TEOS (tetraethoxysilane) and gamma-MAPTS (gamma-Methacryloxypropyltrimethoxysilane) in an ethanol medium. The silica particles showed a characteristic shape due to the intertwisting of the organic chain. The hybrid SiO2 gel/Dacromet composite coating system exhibited a mass loss rate with 4.5 times lower than that of single Dacromet in the simplified industrial medium (3.5% NaCl, 35 wt.% sand and distilled water). A crack-free surface was observed for the hybrid SiO2 gel/Dacromet system due to the incorporation of an organic group during the preparation process so as to produce a restrained synergistic effect of erosion and corrosion. The nano-particles in SiO2 sols did enter into the micro-defects of Dacromet as confirmed by SEM. The change in IR spectra indicated a chemical covalent bond between the gel film and Dacromet through certain reactions. The electrochemical measurement showed that the composite system also presented a longer controlled cathodic protection than that of Dacromet and ail enhanced corrosion resistance for Dacromet. (c) 2005 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34360]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | J. G. Liu,G. P. Gong,C. W. Yan. Enhancement of the erosion-corrosion resistance of Dacromet with hybrid SiO2 sol-gel[J]. Surface & Coatings Technology,2006,200(16-17):4967-4975. |
| APA | J. G. Liu,G. P. Gong,&C. W. Yan.(2006).Enhancement of the erosion-corrosion resistance of Dacromet with hybrid SiO2 sol-gel.Surface & Coatings Technology,200(16-17),4967-4975. |
| MLA | J. G. Liu,et al."Enhancement of the erosion-corrosion resistance of Dacromet with hybrid SiO2 sol-gel".Surface & Coatings Technology 200.16-17(2006):4967-4975. |
入库方式： OAI收割
来源：金属研究所
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