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Corrosion Protection Performance of Nano-SiO2/Epoxy Composite Coatings in Acidic Desulfurized Flue Gas Condensates
Wang, ZB; Wang, ZY; Hu, HX; Liu, CB; Zheng, YG; Zheng, YG (reprint author), Chinese Acad Sci, Inst Met Res, Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China.
2016-09-01
发表期刊JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN1059-9495
卷号25期号:9页码:3880-3889
摘要Five kinds of nano-SiO2/epoxy composite coatings were prepared on mild steels, and their corrosion protection performance was evaluated at room temperature (RT) and 50 A degrees C (HT) using electrochemical methods combined with scanning electron microscopy (SEM). The effects of preparation and sealing processes on the corrosion protection performance of epoxy coatings were specially focused on. The results showed that it was favorable for the corrosion protection and durable performance to add the modified nano-SiO2 during rather than after the synthesis of epoxy coatings. Furthermore, the employment of sealer varnish also had beneficial effects. The two better coatings still exhibited higher impedance values even after immersion tests for up to 1000 h at RT and 500 h at HT. SEM revealed that the improvement of corrosion protection performance mainly resulted from the enhancement of coating density. Moreover, the evolution of electrochemical behavior of the two better coatings with immersion time was also discussed by means of fitting the electrochemical impedance spectroscopy results using equivalent circuits with different physical meanings.
部门归属[wang, z. b. ; wang, z. y. ; hu, h. x. ; zheng, y. g.] chinese acad sci, inst met res, lab nucl mat & safety assessment, 62 wencui rd, shenyang 110016, peoples r china ; [liu, c. b.] huadian zhengzhou mech design inst co ltd, ctr wear & corros resistant mat, 19 huaihe east rd, zhengzhou 450015, peoples r china
关键词Corrosion Protection Performance Epoxy Coating Eis Nano-sio2 Sealer Varnish
学科领域Materials Science, Multidisciplinary
资助者Huadian Zhengzhou Mechanical Design Institute Co., Ltd.; National Basic Research Program of China (973 Program) [2014CB643304]; National Environmental Corrosion Platform [2005DKA10400]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/76289
专题中国科学院金属研究所
通讯作者Zheng, YG (reprint author), Chinese Acad Sci, Inst Met Res, Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Wang, ZB,Wang, ZY,Hu, HX,et al. Corrosion Protection Performance of Nano-SiO2/Epoxy Composite Coatings in Acidic Desulfurized Flue Gas Condensates[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2016,25(9):3880-3889.
APA Wang, ZB,Wang, ZY,Hu, HX,Liu, CB,Zheng, YG,&Zheng, YG .(2016).Corrosion Protection Performance of Nano-SiO2/Epoxy Composite Coatings in Acidic Desulfurized Flue Gas Condensates.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,25(9),3880-3889.
MLA Wang, ZB,et al."Corrosion Protection Performance of Nano-SiO2/Epoxy Composite Coatings in Acidic Desulfurized Flue Gas Condensates".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 25.9(2016):3880-3889.
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