NIMTE OpenIR  > 2018专题
Performance evaluation of mercapto functional hybrid silica sol-gel coating and its synergistic effect with f-GNs for corrosion protection of copper surface
Tian, Shu; Liu, Zhixiong; Shen, Luli; Pu, Jibin; Liu, Wenqing; Sun, Xiaofeng; Li, Zhanming
2018
Source PublicationRSC ADVANCES
Volume8Issue:14Pages:7438-7449
AbstractA nanocomposite coating comprising mercapto functional hybrid silica sol-gel coating and functionalized graphene nanoplates nanocomposite coatings with advanced anticorrosive properties was prepared by a sol-gel method. In this study, graphene oxide (GO) nanoplates were silanized using 3-aminopropyltriethoxysilane (APTES) to obtain functional graphene nanoplates (f-GNs). The f-GNs were characterized by FTIR, XRD, XPS, TEM, AFM and TGA techniques. The functionalized graphene nanoplates were chemically bonded to a sol-gel matrix and showed good dispersion in the sol. Then, silica hybrid sol-gel nanocomposites with raw GO and different amounts of f-GNs were applied on the copper surface. Uniform, defect-free and adherent sol-gel films were obtained. Various corresponding methods were used to investigate the nanocomposite coating's properties. The corrosion resistance of copper significantly improved after being coated with mercapto functional hybrid silica sol-gel. The addition of f-GNs to the mercapto functional silica sol-gel coatings further improved the corrosion resistance due to a synergistic effect. Moreover, with an increase in the amount of f-GNs in the nanocomposite coating, the nanocomposite showed improved corrosion resistance. The nanocomposite containing 0.1 wt% f-GNs can efficiently protect the copper substrate from corrosion. This improvement was primarily attributed to the homogeneous dispersion of the f-GNs in the silica gel matrix and their effective barrier against corrosive molecules and ions. However, adding raw GO or excess f-GNs to the silica hybrid sol-gel coating had a negative effect on the corrosion resistance.
KeywordGraphene Oxide Composite Coatings In-situ Nanocomposite Fabrication Inhibition Metals Nanoparticles Bronze Brass
Subject AreaChemistry
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/16919
Collection2018专题
Recommended Citation
GB/T 7714
Tian, Shu,Liu, Zhixiong,Shen, Luli,et al. Performance evaluation of mercapto functional hybrid silica sol-gel coating and its synergistic effect with f-GNs for corrosion protection of copper surface[J]. RSC ADVANCES,2018,8(14):7438-7449.
APA Tian, Shu.,Liu, Zhixiong.,Shen, Luli.,Pu, Jibin.,Liu, Wenqing.,...&Li, Zhanming.(2018).Performance evaluation of mercapto functional hybrid silica sol-gel coating and its synergistic effect with f-GNs for corrosion protection of copper surface.RSC ADVANCES,8(14),7438-7449.
MLA Tian, Shu,et al."Performance evaluation of mercapto functional hybrid silica sol-gel coating and its synergistic effect with f-GNs for corrosion protection of copper surface".RSC ADVANCES 8.14(2018):7438-7449.
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