Fabrication of hydrophobic and enhanced anticorrosion performance of epoxy coating through the synergy of functionalized graphene oxide and nano-silica binary fillers

Dong, Hongyu; Zhan, Yingqing; Chen, Yiwen; Li, Yinlong; Sun, Ao; Chen, Ximin; Zhu, Fei; Jia, Hongshan

doi:10.1016/j.colsurfa.2023.131086

Cited by 23 publications

(5 citation statements)

References 53 publications

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“…GO was prepared from graphite by the modified Hummers method according to our previous investigation . Amine-modified nanosilica was prepared by dispersing nanosilica (SiO 2 ) in an ethanol–water mixture via ultrasonication for 1 h. , 1 g of APTES was added to this silica dispersion, followed by ultrasonication for 30 min. Finally, the mixture was stirred in a magnetic stirrer for 6 h at 60 °C.…”

Section: Methodsmentioning

confidence: 99%

“…Herein, the effect of the developed hybrid nanofiller on the viscoelastic properties of epoxy nanocomposites was evaluated using dynamic mechanical analysis (DMA) and flame retardancy by pyrolysis-combustion flow calorimetry (PCFC). Different from the earlier studies, which primarily addressed the thermomechanical properties − and barrier/corrosion protection , of epoxy coating on various metallic substrates, the current study reports an approach to enhance the properties of the epoxy matrix and an insight into the theoretical evaluation of the thermomechanical parameters. Furthermore, attempts have been made to explicate the confinement of epoxy chains by GSH via the quantitative determination of the constrained volume fraction from the tan delta curve, and this has not been studied previously to the best of the author’s knowledge.…”

Section: Introductionmentioning

confidence: 99%

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Insights into the Synergistic Effect of Graphene Oxide/Silica Hybrid Nanofiller for Advancing the Properties of Epoxy Resin

George,

Vijayan P,

Ponçot

et al. 2024

ACS Appl. Polym. Mater.

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Tuning the interfacial interaction between the filler and the matrix is essential to fabricate high-performance polymer nanocomposites. Herein, a hybrid nanofiller based on graphene oxide (GO) and nanosilica (SiO2) was prepared via electrostatic charge attraction. Amine-functionalized nanosilica was decorated over the surface of the GO sheet via simple aqueous mixing. The hybrid nanofiller approach of GO with nanosilica reduces the cohesive force between the GO sheets, facilitating better dispersion and thereby enhancing the properties of epoxies (preventing GO–GO and silica–silica agglomeration). The high-resolution transmission electron microscopy showed that the d spacing between GO sheets in the GO-SiO2 hybrid nanofiller (0.32 ± 0.70 nm) was higher than that in pristine GO. The synergistic effect of GO and nanosilica in the GO-SiO2 hybrid nanofiller of varying content (0.25 to 0.75 phr) as a reinforcement for advancing the properties of epoxies was monitored systematically. The effect of the GO-SiO2 hybrid nanofiller on the chain confinement, structure, and mechanics was studied by dynamic mechanical analysis. It was found that the hybrid nanofiller incorporation improved the filler matrix interaction and, thereby, the mechanical properties and glass transition temperature (T g) of epoxy. Epoxy chains near the vicinity of the hybrid filler have become immobilized because of the strong filler-matrix interaction and form a confined zone around the filler-matrix interface. The quantitative measurement of the immobilized epoxy chains formed by the hybrid nanofiller was determined from the tan delta curve. A maximum enhancement in the storage modulus, T g, impact strength, and other theoretical parameters was observed for epoxy nanocomposite with 0.5 phr loading of the hybrid nanofiller.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Insights into the Synergistic Effect of Graphene Oxide/Silica Hybrid Nanofiller for Advancing the Properties of Epoxy Resin

George,

Vijayan P,

Ponçot

et al. 2024

ACS Appl. Polym. Mater.

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“…It was difficult for corrosive mediums to be adsorbed on the surface of the coating. The barrier ability of the coating was thus enhanced to the corrosive mediums [38].…”

Section: Anti-corrosion Mechanism Of Composite Coatingmentioning

confidence: 99%

Research on Nano-Titanium Modified Phenolic Resin Coating and Corrosion Resistance

Zheng,

Yuan,

et al. 2023

Coatings

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Nano-titanium can be used in the field of anticorrosive coatings due to its excellent corrosion resistance. In this paper, phenolic resin was modified by nano-titanium using a physicochemical method. The nano-titanium-modified phenolic resin was used as a matrix to prepare the anticorrosive coating. The microstructures of the coatings were analyzed by Scanning Electron Microscope (SEM), X-ray spectroscopy (EDS) and Fourier transform infrared spectroscopy (FTIR). Raman and UV spectrum adhesion of the coating was tested by a scratching method. The corrosion behavior was studied by electrochemical workstation and salt spray test. The results showed that the corrosion resistance of pure phenolic resin coating was significantly improved by the nano-titanium-modified phenolic resin. The coating containing 4% titanium nanoparticles exhibited the best corrosion resistance, with the highest impedance and the smallest corrosion current. The coating remained intact after 480 h of salt spray, showing the best salt spray resistance performance.

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“…Nano titanium modified polymer was prepared by physicochemical method, after magnetic stirring, nano titanium powder and phenolic resin were combined through chemical bonding force to form a spatial mesh structure, the adhesion and hydrophobicity of the coating film was enhanced to improve the adhesion of the coating, which made it difficult for corrosive substances to be adsorbed on the surface of the coating, thus enhancing the barrier ability of the coating to the corrosive substances [21].…”

Section: Anti-corrosion Mechanism Of Composite Coatingmentioning

confidence: 99%

Research on Nano-Titanium Modified Phenolic Resin Coating and Corrosion Resistance

Zheng,

Yuan,

et al. 2023

Preprint

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Nano-titanium has excellent corrosion resistance and can be widely used in the field of corrosion resistant coatings. This paper introduces nano-weight titanium modified phenolic resin coatings and their anti-corrosion properties to explore the principle of nano-titanium modification and the mechanism of anti-corrosion to further develop more advanced corrosion resistant coatings. The article uses scanning electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy and UV-Vis spectrophotometer to characterise the morphology and structure of the nano-titanium modified phenolic resin coatings and to determine the corrosion resistance properties of the modified phenolic resin coatings. The results show that the 4% nano-titanium modified phenolic resin coating, nano-titanium powder and phenolic resin will maximize the dispersion and combination, and the structure is good; nano-titanium grafted on phenolic resin, the successful preparation of nano-titanium modified phenolic resin; modified nano-titanium added to improve the coating's ability of UV absorption. The corrosion resistance of the coating is much better than that of the unmodified phenolic resin coating.

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Fabrication of hydrophobic and enhanced anticorrosion performance of epoxy coating through the synergy of functionalized graphene oxide and nano-silica binary fillers

Cited by 23 publications

References 53 publications

Insights into the Synergistic Effect of Graphene Oxide/Silica Hybrid Nanofiller for Advancing the Properties of Epoxy Resin

Insights into the Synergistic Effect of Graphene Oxide/Silica Hybrid Nanofiller for Advancing the Properties of Epoxy Resin

Research on Nano-Titanium Modified Phenolic Resin Coating and Corrosion Resistance

Research on Nano-Titanium Modified Phenolic Resin Coating and Corrosion Resistance

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