| Enhancement of the erosion-corrosion resistance of Dacromet with hybrid SiO2 sol-gel | |
| J. G. Liu; G. P. Gong; C. W. Yan | |
| 2006 | |
| Source Publication | Surface & Coatings Technology
 |
| ISSN | 0257-8972 |
| Volume | 200Issue:16-17Pages:4967-4975 |
| Abstract | 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. |
| description.department | chinese acad sci, inst met res, state key lab corros & protect, grad sch, shenyang 110016, peoples r china.;liu, jg (reprint author), chinese acad sci, inst met res, state key lab corros & protect, grad sch, 62 wencui rd, shenyang 110016, peoples r china;jgliu@imr.ac.cn |
| Keyword | Dacromet Erosion-corrosion Resistance Hybrid Sol-gel Gamma-mapts Composite Coatings 2024-t3 |
| URL | 查看原文 |
| WOS ID | WOS:000236590300041 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/34360 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation 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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment