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Hung HM, Thi TM, Van Khoe L, Duc LM, Lan HTT, Hoan LT, Xuan VT, Viet NTB, Luong NX, Thuy Chinh N, Hoang T, Hương VT, Trung VQ. Polypyrrole-based nanocomposites doped with both salicylate/molybdate and graphene oxide for enhanced corrosion resistance on low-carbon steel. Des Monomers Polym 2023; 26:171-181. [PMID: 37313390 PMCID: PMC10259342 DOI: 10.1080/15685551.2023.2220529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/29/2023] [Indexed: 06/15/2023] Open
Abstract
In this work, polypyrrole-based nanocomposites doped with graphene oxide, molybdate, and salicylate (PPy/GO/Mo/Sal) were synthesized via in situ electrochemical polymerization to enhance the anti-corrosion protection performance of polymer coatings. The morphology and structures of the coatings were characterized by SEM, EDX, FTIR, Raman spectroscopy, and XRD. The protection abilities of coatings against corrosion were investigated in 0.1 M NaCl solution with EIS potentiodynamic polarization, salt spray test, and open-circuit potential (OCP) measurements. The results showed that with the presence of both molybdate/salicylate and GO in the PPy matrix, the nanocomposite coating exhibited an excellent protection ability against corrosion for low-carbon steel, better than that with only GO as filler. Compared to the nanocomposites doped with only salicylate or salicylate/GO, the one doped with both molybdate/salicylate and GO exhibited the longest protection plateau (ca. 100 h) on the OCP-time curves with some fluctuation points known as the self-healing action of molybdate dopant. It also resulted in a decrease in the corrosion current (Tafel plots), a higher impedance (Bode plot), and a better protection performance in salt spray tests. In this case, the anti-corrosion ability of the coatings was provided through a barrier and self-healing mechanism.
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Affiliation(s)
- Ha Manh Hung
- Faculty of General Education, Hanoi University of Mining and Geology, Hanoi, Vietnam
| | - Tran Minh Thi
- Institute for Theoretical and Applied Research, Duy Tan University, Hanoi, Vietnam
- Faculty of Nature Science, Duy Tan University, Da Nang, Vietnam
| | - Le Van Khoe
- Faculty of Natural Sciences, Hong Duc University, Thanh Hoa, Vietnam
| | - Le Minh Duc
- Branch of National Institute of Occupational Safety and Health & Environmental Protection in Central of Vietnam, Hai Chau, Da Nang, Vietnam
| | - Hoang Thi Tuyet Lan
- Faculty of Basic Sciences, University of Transport and Communications, Hanoi, Vietnam
| | - Lai Thi Hoan
- Faculty of Basic Sciences, University of Transport and Communications, Hanoi, Vietnam
| | - Vu Thi Xuan
- Faculty of Basic Sciences, University of Transport and Communications, Hanoi, Vietnam
| | | | - Ngo Xuan Luong
- Faculty of Natural Sciences, Hong Duc University, Thanh Hoa, Vietnam
| | - Nguyen Thuy Chinh
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Vietnam
| | - Thai Hoang
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Vietnam
| | - Vu Thi Hương
- Faculty of Chemistry, Hanoi National University of Education, Hanoi, Vietnam
| | - Vu Quoc Trung
- Faculty of Chemistry, Hanoi National University of Education, Hanoi, Vietnam
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Sutar RA, M. V. M. Effect of Cobalt Aluminum Oxide Nanoparticles on the Structural, DC Conductivity and Humidity Sensing Properties of Polypyrrole. J MACROMOL SCI B 2020. [DOI: 10.1080/00222348.2020.1807691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- R. A. Sutar
- Department of Physics, B.M.S. College of Engineering, Bengaluru, Karnataka, India
| | - Murugendrappa M. V.
- Department of Physics, B.M.S. College of Engineering, Bengaluru, Karnataka, India
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Sepideh Akbaripoor Tafreshinejad, Pishvaei M, Soleimani-Gorgani A. Synthesis of Antibacterial Conductive Polypyrrole/Titanium Dioxide Core–Shell Nanocomposites. POLYMER SCIENCE SERIES B 2020. [DOI: 10.1134/s1560090420020074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Khadem F, Pishvaei M, Salami-Kalajahi M, Najafi F. Morphology control of conducting polypyrrole nanostructures via operational conditions in the emulsion polymerization. J Appl Polym Sci 2017. [DOI: 10.1002/app.44697] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fatemeh Khadem
- Department of Polymer Engineering; Sahand University of Technology; P.O. Box 51335-1996, Tabriz, Iran
| | - Malihe Pishvaei
- Department of Resin and Additives; Institute for Color Science and Technology; P.O. Box 16765-654, Tehran, Iran
| | - Mehdi Salami-Kalajahi
- Department of Polymer Engineering; Sahand University of Technology; P.O. Box 51335-1996, Tabriz, Iran
| | - Farhood Najafi
- Department of Resin and Additives; Institute for Color Science and Technology; P.O. Box 16765-654, Tehran, Iran
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