Polypyrrole-Modified Molybdenum Disulfide Nanocomposite Epoxy Coating Inhibits Corrosion of Mild Steel
Source abstract
Abstract
The search for lightweight and low-cost anticorrosion coatings is particularly important in coastal environments with high salt and humidity. Graphene-based anticorrosion coatings are currently unable to provide long-lasting corrosion protection for metals because of their “corrosion-promoting activity”, and graphene-like materials, such as molybdenum disulfide (MoS2), are beginning to be anticipated its ability to protect against metals. This paper reported a simple method for preparing polypyrrole (PPy)-modified MoS2 nanomaterials from natural bulk MoS2. Their corrosion resistance behavior as fillers for epoxy (EP) resins was investigated in 3.5 wt.% NaCl solution. After the preparation of the MoS2 nanosheet dispersion by liquid-phase sonication using ethanol aqueous solution, the polypyrrole-coated molybdenum disulfide nanomaterials (MoS2@PPy) were directly obtained by adding pyrrole monomer to it in the presence of the initiator ammonium persulfate. Tafel polarization curves showed that the corrosion current of the MoS2@PPy/EP coating was 0.006 µA/cm2 after 15 days of immersion in 3.5 wt.% NaCl solution, much lower than that of pure EP coating (19.134 µA/cm2), effectively improving the anticorrosive properties of the coating. Overall, this study offered a practical method for the application of natural bulk MoS2 for corrosion protection.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: 2D Materials and Applications · Conducting polymers and applications · Corrosion Behavior and Inhibition
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Hainan University, Haikou 570228, China
State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, Sanya 572025, China
Funding
Marine Ecological Materials in South China Sea · New Waterproof Sealing Material for Prefabricated Building · Hainan Blue Island Environmental Protection Industry Co., Ltd.
References (38)
Show source-provided references
1. Morin, J., Brochard, G., Bergé, V., Rosset, A., Artous, S., Clavaguera, S., Strekowski, R.S., and Wortham, H. Uptake of m-xylene and VOC emissions by mineral photocatalytic paints of indoor air building interest. Environ. Sci. Nano, 2023. in press.10.1039/D3EN00084B ↗
2. Experimental study on the mechanical properties of CFRP/epoxy composite plates under seawater immersion10.1016/j.istruc.2023.05.042 ↗
3. Designing strong interfacial adhesion between carbon fiber and epoxy resin via dopamine towards excellent protection ability under high hydrostatic pressure and severe erosion corrosion condition10.1016/j.compscitech.2021.109090 ↗
4. Two-Dimensional Nanomaterials for Anticorrosive Polymeric Coatings: A Review10.1021/acs.iecr.0c02876 ↗
5. A novel cerium organic network modified graphene oxide prepared multifunctional waterborne epoxy-based coating with excellent mechanical and passive/active anti-corrosion properties10.1016/j.cej.2023.142997 ↗
6. Highly scalable synthesis of MoS2 thin films for carbon steel coatings: Influence of synthetic route on the nanostructure and corrosion performance10.1016/j.jmrt.2023.01.048 ↗
7. Wu, J., Wang, H., Li, R., and Guo, L. (2023). Anticorrosive waterborne polyurethane coating with Gemini surfactant-assisted exfoliation of hexagonal boron nitride nanosheets. J. Appl. Polym. Sci., e54008.10.1002/app.54008 ↗
8. Multifunctional ZnAl-MoO4 LDH assembled Ti3C2Tx MXene composite for active/passive corrosion protection behavior of epoxy coatings10.1016/j.apsusc.2023.157092 ↗
9. A stable anticorrosion coating with multifunctional linkage against seawater corrosion10.1016/j.compositesb.2023.110733 ↗
10. Multifunctional epoxy nanocomposites reinforced by two-dimensional materials: A review10.1016/j.carbon.2021.09.009 ↗
11. Poorly conductive electrochemically reduced graphene oxide films modified with alkyne chains to avoid the corrosion-promoting effect of graphene-based materials on carbon steel10.1016/j.carbon.2020.05.069 ↗
12. Graphene as a Long-Term Metal Oxidation Barrier: Worse Than Nothing10.1021/nn4014356 ↗
13. Structural-Defect-Mediated Grafting of Alkylamine on Few-Layer MoS2 and Its Potential for Enhancement of Tribological Properties10.1021/acsami.0c08307 ↗
14. Polyaniline/zinc/cerium nitrate pigment for epoxy based anticorrosion coatings10.1016/j.reactfunctpolym.2018.07.002 ↗
15. Mussel-inspired polydopamine and Al2O3 nanoparticles co-modified MoS2 for reinforcing anticorrosion of epoxy coatings10.1007/s00396-022-05052-3 ↗
16. 2D Heterostructure coatings ofhBN-MoS2layers for corrosion resistance10.1088/1361-6463/aa5001 ↗
17. Anticorrosive epoxy coatings based on polydopamine modified molybdenum disulfide10.1016/j.porgcoat.2019.04.056 ↗
18. MoS2 nanosheets modified SiO2 to enhance the anticorrosive and mechanical performance of epoxy coating10.1016/j.porgcoat.2019.04.002 ↗
19. How semiconductor transition metal dichalcogenides replaced graphene for enhancing anticorrosion10.1039/C9TA04033A ↗
20. Growth of polypyrrole ultrathin films on MoS2 monolayers as high-performance supercapacitor electrodes10.1002/adma.201404622 ↗
21. Polypyrrole-functionalized boron nitride nanosheets for high-performance anti-corrosion composite coating10.1016/j.surfcoat.2021.127273 ↗
22. A rational design of cosolvent exfoliation of layered materials by directly probing liquid-solid interaction10.1038/ncomms3213 ↗
23. MoS2 decorated with ZrO2 nanoparticles through mussel-inspired chemistry of dopamine for reinforcing anticorrosion of epoxy coatings10.1016/j.colsurfa.2020.125625 ↗
24. Self-healing epoxy composite coating based on polypyrrole@MOF nanoparticles for the long-efficiency corrosion protection on steels10.1016/j.colsurfa.2022.130601 ↗
25. Polypyrrole coated molybdenum disulfide composites as adsorbent for enhanced removal of Cr(VI) in aqueous solutions by adsorption combined with reduction10.1016/j.cej.2020.127281 ↗
26. Surface functionalization of bulk MoS2 sheets for efficient liquid phase exfoliation in polar micromolecular solvents10.1016/j.apsusc.2019.05.052 ↗
27. Atomically thin MoS2: A new direct-gap semiconductor10.1103/PhysRevLett.105.136805 ↗
28. Polypyrrole coated 3D flower MoS2 composites with tunable impedance for excellent microwave absorption performance10.1016/j.jallcom.2021.161487 ↗
29. Preparation and electromagnetic attenuation properties of MoS2–PANI composites: A promising broadband absorbing material10.1007/s10854-018-0292-6 ↗
30. Two-dimensional hybrid materials: MoS2-RGO nanocomposites enhanced the barrier properties of epoxy coating10.1016/j.apsusc.2018.03.013 ↗
31. Effect of polymerization conditions on the properties of polypyrrole prepared in the presence of sodium bis(2-ethylhexyl) sulfosuccinate10.1016/j.synthmet.2003.11.005 ↗
32. Structure characterization and conductive performance of polypyrrol-molybdenum disulfide intercalation materials10.1002/pc.20009 ↗
33. Performance of functionalized graphene oxide to improve anti-corrosion of epoxy coating on 2024-T3 aluminium alloy10.1016/j.matchemphys.2023.127849 ↗
34. MoS2-CNFs composites to enhance the anticorrosive and mechanical performance of epoxy coating10.1016/j.porgcoat.2019.01.021 ↗
35. The effect of a functionalized defect-rich molybdenum disulfide nanosheets on anticorrosion performance of epoxy coating10.1088/2053-1591/ab28e8 ↗
36. Comparative corrosion resistance of graphene sheets with different structures in waterborne epoxy coatings10.1016/j.colsurfa.2018.08.045 ↗
37. A facile approach to fabricating graphene/waterborne epoxy coatings with dual functionalities of barrier and corrosion inhibitor10.1016/j.jmst.2021.07.061 ↗
38. Degradation of zinc-rich epoxy coating in 3.5% NaCl solution and evolution of its EIS parameters10.1007/s11998-020-00448-8 ↗