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Ageing resistance and corrosion resistance of silicone-epoxy and polyurethane topcoats used in sea splash zone
Z. Y. Wang; F. C. Liu; E. H. Han; W. Ke
2013
Source PublicationMaterials and Corrosion-Werkstoffe Und Korrosion
ISSN0947-5117
Volume64Issue:5Pages:446-453
AbstractThe silicone-epoxy and polyurethane topcoats applied in a simulated sea splash environment were studied according to ISO20340 standard, and their properties were analyzed by differential scanning calorimetry (DSC), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and electrochemical impedance spectrum (EIS). Glass transition temperature (Tg) of silicone-epoxy polymer is 7.7 degrees C higher than that of polyurethane polymer. Measurement of gloss and color difference demonstrates that anti-ageing property of silicone-epoxy topcoat is better than that of polyurethane topcoat. It is known from SEM and XPS analysis that silicone-epoxy topcoat can retain the good morphological structure and ageing resistance after accelerated cycle ageing test. The results from EIS analysis indicate that the silicone-epoxy topcoat has good anti-corrosion properties. Measurement of contact angles indicates that surface tension of silicone-epoxy topcoat is smaller than that of polyurethane topcoat before and after corrosion test.
description.department[wang, z. y. ; liu, f. c. ; han, e. h. ; ke, w.] chinese acad sci, inst met res, key lab corros & protect, shenyang 110016, peoples r china. ; wang, zy (reprint author), chinese acad sci, inst met res, key lab corros & protect, shenyang 110016, peoples r china. ; zzyywang@imr.ac.cn
KeywordSilicone-epoxy Polyurethane Topcoat Sea Splash Zone Corrosion Resistance Coatings Resins
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71571
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Z. Y. Wang,F. C. Liu,E. H. Han,et al. Ageing resistance and corrosion resistance of silicone-epoxy and polyurethane topcoats used in sea splash zone[J]. Materials and Corrosion-Werkstoffe Und Korrosion,2013,64(5):446-453.
APA Z. Y. Wang,F. C. Liu,E. H. Han,&W. Ke.(2013).Ageing resistance and corrosion resistance of silicone-epoxy and polyurethane topcoats used in sea splash zone.Materials and Corrosion-Werkstoffe Und Korrosion,64(5),446-453.
MLA Z. Y. Wang,et al."Ageing resistance and corrosion resistance of silicone-epoxy and polyurethane topcoats used in sea splash zone".Materials and Corrosion-Werkstoffe Und Korrosion 64.5(2013):446-453.
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