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Effect of Nano-SnS and Nano-MoS2 on the corrosion protection performance of the polyvinylbutyral and zinc-rich polyvinylbutyral coatings

Journal Article (2019)
Author(s)

Zuopeng Qu (North China Electric Power University)

Lei Wang (North China Electric Power University)

Hongyu Tang (TU Delft - Electrical Engineering, Mathematics and Computer Science, Changzhou Institute of Technology Research for Solid State Lighting)

Huaiyu Ye (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Meicheng Li (North China Electric Power University)

Research Group
Electronic Components, Technology and Materials
DOI related publication
https://doi.org/10.3390/nano9070956 Final published version
More Info
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Publication Year
2019
Language
English
Research Group
Electronic Components, Technology and Materials
Journal title
Nanomaterials
Issue number
7
Volume number
9
Article number
956
Pages (from-to)
1-13
Page Views
314
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Institutional Repository
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Abstract

In this paper, four composite coatings of nano-SnS/polyvinylbutyral (PVB), nano-MoS2/PVB, nano-SnS-Zn/PVB, and nano-MoS2-Zn/PVB were prepared, and their anti-corrosion mechanism was analyzed by experimental and theoretical calculations. The results of the electrochemical experiments show that the effect of nano-MoS2 on the corrosion protection performance of PVB coating is better than that of nano-SnS in 3% NaCl solution, and that the addition of Zn further enhances this effect, which is consistent with the results of weight loss measurements. Furthermore, the observation of the corrosion matrix by the field emission scanning electron microscope (FESEM) further confirmed the above conclusion. At last, the molecular dynamics (MD) simulation were carried out to investigate the anti-corrosion mechanism of the nanofillers/PVB composites for the copper surface. The results show that both nano-SnS and nano-MoS2 are adsorbed strongly on the copper surface, and the binding energy of nano-MoS2 is larger than that of nano-SnS.