The fabrication and anticorrosive performances of sulfonate‑barium@sulfonated graphene composite filler

Li, Zhan; Zhao, Zhanhong; Gu, Yuxin; Zhao, Jianhua; Jin, Shengming; Chang, Xinghua; Zhang, Ying

doi:10.1016/j.porgcoat.2021.106370

Cited by 3 publications

(4 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…0, the electrochemical test impedance is approximately equal to the coating resistance, so the impedance at low frequency can be used as the basis for evaluating the coating resistance, and the impedance measured at f = 0.01 Hz is generally taken to be Z f=0.01 Hz . 17 As can be seen, the Gr02-QA02 showed a low impedance mode value in the low-frequency region from the beginning (at day 0), while the others showed impedance modulus values above 11th power. After 20 days of immersion, the QA05 and Gr02-QA05 showed no significant change in the low-frequency impedance modulus, while others decreased.…”

Section: Electrochemical Analysismentioning

confidence: 82%

“…The Bode plots of the EIS results for each group of coatings immersed in 3.5 wt% NaCl solution for 140 days are shown in Figure 14. When the scan frequency f → 0, the electrochemical test impedance is approximately equal to the coating resistance, so the impedance at low frequency can be used as the basis for evaluating the coating resistance, and the impedance measured at f = 0.01 Hz is generally taken to be Z f=0.01 Hz 17 . As can be seen, the Gr02‐QA02 showed a low impedance mode value in the low‐frequency region from the beginning (at day 0), while the others showed impedance modulus values above 11th power.…”

Section: Resultsmentioning

confidence: 99%

“…For example, Lv et al 16 coated Gr by zirconium oxide to reduce the electrical conductivity of Gr and improved the corrosion resistance of epoxy resin coatings. Liu et al 17 improved the anti‐corrosion property of epoxy coating by introduced graphene layers wrapped by sulfonate‐barium nanocomposite.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of quinacridone content on the performance of graphene/epoxy coatings

Liu

Gao

Wen

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

In this article, long-lasting anti-corrosion graphene/epoxy coatings were successfully prepared using quinacridone as dispersant by solution mixing method. The results showed that quinacridone and graphene can form π-π bonds and improve the dispersibility of each other in epoxy coatings. Mechanical and anti-corrosion properties of epoxy coatings with different contents of quinacridone and graphene have been tested, the results showed that the optimum weight ratio of graphene to quinacridone was 2:5. The tensile strength of the epoxy coatings with 0.2 wt% graphene and 0.5 wt% quinacridone reached 8.12 MPa, which was 1.44 times of the pure epoxy coatings. Moreover, the impedance modulus of the coatings reinforced with quinacridone and graphene was greater than 10 11 ΩÁcm 2 after being immersed in 3.5 wt% NaCl solution for 140 days, which was two orders of magnitude higher than that of the pure epoxy coatings. We found that the reason for the improved performance of the epoxy coatings was not only that quinacridone improved the dispersibility of graphene in the coatings, but also more importantly, quinacridone adsorbed on the surface of graphene to form scale-like crystalline structures, which enables graphene to reduce folds and wrinkles, thus giving full play to the shielding effect of graphene against corrosion factors.

show abstract

Section: Electrochemical Analysismentioning

confidence: 82%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of quinacridone content on the performance of graphene/epoxy coatings

Liu

Gao

Wen

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…In addition to element doping and chemical passivation, insulating material encapsulation is also an effective way to reduce graphene's conductivity. The insulating encapsulation of graphene by nanoparticles such as sulfonate-barium (BS) and ZrO 2 triumphantly restrained the corrosion promotion activity of graphene [28,29]. Whereas the limited compatibility between the graphene encapsulated by inorganic nanoparticles and the polymer is still not ideal for improving the barrier performance of the composite coating [30].…”

Section: Introductionmentioning

confidence: 99%

Poly(m-phenylenediamine) encapsulated graphene for enhancing corrosion protection performance of epoxy coatings

Zhang

Zheng

2021

Nanotechnology

View full text Add to dashboard Cite

Graphene (G) is regarded as a tremendous potential corrosion protection material owing to its perfect impermeability. However, the tendency of graphene nanosheets to agglomerate and the corrosion-promotion effect brought by its native high electrical conductivity seriously affect its anti-corrosion application. In this paper, high-energy ball milling was used to prepare graphene with excellent impermeability. Then, insulating poly(m-phenylenediamine) encapsulated graphene (G@PmPD, conductivity of 1.2 × 10−7 S cm−1) was prepared through non-covalent π–π interaction. The resulting amino-rich G@PmPD exhibits stable dispersibility and excellent compatibility in organic solvents and polymer matrix. Embedding 0.5 wt% of G@PmPD into the epoxy matrix, and the composite coating can effectively protect the steel substrate for up to 60 d. This superior corrosion resistance is attributed to the impermeability inherited by G@PmPD and the compactness improved by the cross-linking of G@PmPD and EP. Especially in the damaged state, the composite coating embedded with low conductivity G@PmPD triumphantly eliminated graphene’s corrosion-promotion effect. This study provides promising inspiration for the application of graphene in anti-corrosion field.

show abstract

Chemical Composition of Classical Fillers

Wypych¹

2023

Functional Fillers

View full text Add to dashboard Cite

The fabrication and anticorrosive performances of sulfonate‑barium@sulfonated graphene composite filler

Cited by 3 publications

References 50 publications

Effect of quinacridone content on the performance of graphene/epoxy coatings

Effect of quinacridone content on the performance of graphene/epoxy coatings

Poly(m-phenylenediamine) encapsulated graphene for enhancing corrosion protection performance of epoxy coatings

Chemical Composition of Classical Fillers

Contact Info

Product

Resources

About