Epoxy coating with in-situ synthesis of polypyrrole functionalized graphene oxide for enhanced anticorrosive performance

Zhu, Qingsong; Li, En; Liu, Xianhu; Song, Weiqiang; Li, Yilong; Wang, Xinchao; Liu, Chuntai

doi:10.1016/j.porgcoat.2019.105488

Cited by 58 publications

(32 citation statements)

References 21 publications

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“…On the other hand, in the supramolecular fabrication, the formation of the composites does not alter the main properties of the graphene or CPs, and they are easier to manufacture [ 153 ]. For instance, Zhu and co-workers introduced an in situ polymerization of a PPy/GO film [ 154 ]. The authors showed how the nanocomposite has a noticeable improvement in corrosion protection.…”

Section: Graphene Mixed With Cpmentioning

confidence: 99%

Carbon Nanomaterials Embedded in Conductive Polymers: A State of the Art

et al. 2021

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Carbon nanomaterials are at the forefront of the newest technologies of the third millennium, and together with conductive polymers, represent a vast area of indispensable knowledge for developing the devices of tomorrow. This review focusses on the most recent advances in the field of conductive nanotechnology, which combines the properties of carbon nanomaterials with conjugated polymers. Hybrid materials resulting from the embedding of carbon nanotubes, carbon dots and graphene derivatives are taken into consideration and fully explored, with discussion of the most recent literature. An introduction into the three most widely used conductive polymers and a final section about the most recent biological results obtained using carbon nanotube hybrids will complete this overview of these innovative and beyond belief materials.

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Section: Graphene Mixed With Cpmentioning

confidence: 99%

Carbon Nanomaterials Embedded in Conductive Polymers: A State of the Art

et al. 2021

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“…GO-PPy composites were prepared according to our previous reports. [20,21] Briefly, these composites were prepared by in-situ polymerization of Py on the surface of GO.…”

Section: Experimental 21 Synthesis Of Go-ppymentioning

confidence: 99%

Polypyrrole Functionalized Graphene Oxide Accelerated Zinc Phosphate Coating under Low-Temperature

Zhu¹,

Liu²,

Wang³

et al. 2020

ES Mater. Manuf.

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Zinc phosphate coating, as an effective and fast anticorrosion technique for the metals, have been developed rapidly in recent years. However, it is still a challenge to synthesize a low energy, environmentally friendly and efficient accelerator through a facile method. Herein, as a new accelerator, polypyrrole (PPy) functionalized graphene oxide (GO-PPy) nanocomposites were prepared by in-situ process to grow PPy film on GO surface, Incorporation of GO-PPy into phosphate baths accelerated the phosphating process of phosphate coating and promoted the nucleation and growth of phosphate crystals, achieving stronger corrosion resistance, which were confirmed by electrochemical measures and morphologies characteristic of the phosphate coating. Additionally, when the concentration of GO-PPy in the phosphate baths reached up 1.2 g/L, the phosphate coating possessed the most compact and uniform phosphate crystals and the best corrosion protection performance. Finally, the special mechanism of the phosphate process was discussed. This work introduces a new, low-energy, facile, environmentally friendly and alternative accelerator for the preparation of phosphate coatings.

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“…As a kind of nanomaterial, mixing it into the epoxy coating will not change the original properties of the matrix. Graphene can not only block the passage of the smallest gas molecules, but also as a monatomic membrane, graphene not only blocks gas molecules, but also has a good blocking effect on the corrosion and dangerous ions [ 14 ]. Generally, graphene is not easy to be affect by the moisture [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Research on the Preparation and Anticorrosion Properties of EP/CeO2-GO Nanocomposite Coating

et al. 2021

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Due to its special two-dimensional lamellar structure, graphene possesses an excellent shielding effect, hydrophobic characteristics and large specific surface area, which can effectively isolate the internal structure from the external corrosive media. However, lamellar graphene is easy to stack and agglomerate, which limits its anti-corrosion performance. In this paper, cerium oxide-graphene oxide (CeO2-GO) nanocomposites were prepared by a hydrothermal synthesis method. Field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM) were applied for microstructure examination, showing that a large number of nanoscale granular cerium oxide grew on the lamellar graphene oxide surface, which improved the dispersion performance of graphene inside the matrix. The anti-corrosion properties of the coating were analyzed and illustrated by open circuit potential (OCP), frequency response analysis, Tafel curve and Mott–Schottky curve. The results indicated that the CeO2-GO (4:1) nanocomposite not only eliminated the agglomeration of graphene to some extent, but also prepared the graphene epoxy coating with good dispersion, which further promoted its anti-corrosion performance. The paper proposed a feasible solution for GO dispersion in cement-based materials and lays a solid theoretical foundation for the engineering application of cerium oxide-graphene oxide modified anticorrosive coating.

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Epoxy coating with in-situ synthesis of polypyrrole functionalized graphene oxide for enhanced anticorrosive performance

Cited by 58 publications

References 21 publications

Carbon Nanomaterials Embedded in Conductive Polymers: A State of the Art

Carbon Nanomaterials Embedded in Conductive Polymers: A State of the Art

Polypyrrole Functionalized Graphene Oxide Accelerated Zinc Phosphate Coating under Low-Temperature

Research on the Preparation and Anticorrosion Properties of EP/CeO2-GO Nanocomposite Coating

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