Corrosion performance of epoxy coatings modified by nanoparticulate SiO2
Li, W.1; Tian, H.1,2; Hou, B.1; Li, W (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Corros Sci Shandong, Qingdao 266071, Peoples R China.
2012
发表期刊MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
ISSN0947-5117
卷号63期号:1页码:44-53
文章类型Article
摘要Electrochemical impedance spectroscopy (EIS) was employed to investigate the corrosion performance of nanoparticulate SiO2 modified epoxy coatings on carbon steel in 3.5?wt% NaCl solution, coupled with salt spray test. Capacitance-gravimetric methods and delamination tests were performed to analyze the water uptake behavior and interface stability against delamination of modified coatings, respectively. Four systems were studied, including a clear coating and three pigmented coatings (with 1, 2, and 3?wt% nanoparticulate SiO2). The experimental results showed that nanoparticulate SiO2 particles can improve the anti-corrosion performance of the coatings and the optimal addition content is 2?wt%. The results obtained with capacitance-gravimetric measurements showed that the diffusion process of water through epoxy coatings with different pigment volume concentration (PVC) obeyed the second Fick's diffusion law in the initial period. Adding nanoparticulate SiO2 into epoxy coatings can act effectively. The positive influence is attributed to the reaction between nanoparticles and epoxy resin which is confirmed by FTIR, improving the barrier and dispersion effectiveness of coatings. The negative one is increasing the number of pores in the coatings when the adding amount is beyond the critical PVC.
关键词Corrosion Performance Epoxy Coating Modification Nanoparticulate Sio2
学科领域Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
DOI10.1002/maco.200905620
URL查看原文
收录类别SCI
语种英语
WOS记录号WOS:000298919900005
引用统计
被引频次:28[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/12462
专题海洋环境腐蚀与生物污损重点实验室
通讯作者Li, W (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Corros Sci Shandong, Qingdao 266071, Peoples R China.
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Corros Sci Shandong, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
第一作者单位中国科学院海洋研究所
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Li, W.,Tian, H.,Hou, B.,et al. Corrosion performance of epoxy coatings modified by nanoparticulate SiO2[J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,2012,63(1):44-53.
APA Li, W.,Tian, H.,Hou, B.,&Li, W .(2012).Corrosion performance of epoxy coatings modified by nanoparticulate SiO2.MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,63(1),44-53.
MLA Li, W.,et al."Corrosion performance of epoxy coatings modified by nanoparticulate SiO2".MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION 63.1(2012):44-53.
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