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Effect of Nano-SnS and Nano-MoS2 on the Corrosion Protection Performance of the Polyvinylbutyral and Zinc-Rich Polyvinylbutyral Coatings

1,*,†, 1,†, 2,3,†, 2 and 4
1
National Engineering Laboratory for Biomass Power Generation Equipment, School of Renewable Energy, North China Electric Power University, Beijing 102206, China
2
Delft Institute of Microsystems and Nanoelectronics, Delft University of Technology, 2628 CD Delft, The Netherlands
3
Changzhou Institute of Technology Research for Solid State Lighting, Changzhou 213161, China
4
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy School, North China Electric Power University, Beijing 102206, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Nanomaterials 2019, 9(7), 956; https://doi.org/10.3390/nano9070956
Received: 20 May 2019 / Revised: 14 June 2019 / Accepted: 17 June 2019 / Published: 30 June 2019
(This article belongs to the Special Issue Nanocomposites of Polymers and Inorganic Nanoparticles)
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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. View Full-Text
Keywords: anti-corrosion; tin sulfide (SnS); molybdenum disulfide (MoS2); electrochemical test; composite coating anti-corrosion; tin sulfide (SnS); molybdenum disulfide (MoS2); electrochemical test; composite coating
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Qu, Z.; Wang, L.; Tang, H.; Ye, H.; Li, M. Effect of Nano-SnS and Nano-MoS2 on the Corrosion Protection Performance of the Polyvinylbutyral and Zinc-Rich Polyvinylbutyral Coatings. Nanomaterials 2019, 9, 956.

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