Advanced anticorrosive coatings prepared from electroactive polyimide/graphene nanocomposites with synergistic effects of redox catalytic capability and gas barrier properties

Chang, Kung‐Chin; Hsu, Ching-Ling; Lu, Hsin-I; Ji, Wei-Fu; Chang, Chia Hui; Li, W. Y.; Chuang, Tsao‐Li; Yeh, Jui‐Ming; Liu, W. R.; Tsai, Mei‐Hui; Li, Chung

doi:10.3144/expresspolymlett.2014.28

Cited by 84 publications

(38 citation statements)

References 54 publications

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“…In addition, graphene, a new generation carbonaceous-layered material has shown considerable potential as a reinforcing material in polymer nanocomposites. It has a very large surface area and tunable surface properties [109][110][111][112][113][114].…”

Section: Future Challenges and Conclusion Remarksmentioning

confidence: 99%

Polyamide blend-based nanocomposites: A review

Chow¹,

Ishak

2015

Express Polym. Lett.

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Section: Future Challenges and Conclusion Remarksmentioning

confidence: 99%

Polyamide blend-based nanocomposites: A review

Chow¹,

Ishak

2015

Express Polym. Lett.

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“…However, the incorporation of graphene would further enhance such a protection characteristic of the epoxy and the degree of enhancement depends on graphene loading. This variation in protection efficiencies can be attributed to the noble barrier property of graphene [16], which attenuate the corrosion rate by prolonging the tortuosity pathway for the corrosive agents to reach the SS304 substrate. …”

Section: Electrochemical Impedancementioning

confidence: 99%

“…However, the lower density, high surface area, and the very high aspect ratio attracted much attention to graphene [10] as a candidate for enhancing the corrosion protection property of epoxy. Graphene nanosheets, graphene nanoplatelets and functionalized graphene are different forms of graphene that have been utilized as fillers in various polymeric matrices to enhance their mechanical, thermal, dielectric, gas barrier, and corrosion resistance properties [11][12][13][14][15][16][17][18][19][20][21][22]. The incorporation of graphene into the epoxy matrix is expected to prolong the pathway corrosive agents follow to reach the metal substrate.…”

Section: Introductionmentioning

confidence: 99%

Enhanced protective properties and UV stability of epoxy/graphene nanocomposite coating on stainless steel

Alhumade

Elkamel

et al. 2016

Express Polym. Lett.

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Abstract. Epoxy-Graphene (E/G) nanocomposites with different loading of graphene were prepared via in situ prepolymerization and evaluated as protective coating for Stainless Steel 304 (SS304). The prepolymer composites were spin coated on SS304 substrates and thermally cured. Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM) were utilized to examine the dispersion of graphene in the epoxy matrix. Epoxy and E/G nanocomposites were characterized using X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR) techniques and the thermal behavior of the prepared coatings is analyzed using Thermogravimetric analysis (TGA) and Differential scanning calorimetry (DSC). The corrosion protection properties of the prepared coatings were evaluated using Electrochemical Impedance Spectroscopy (EIS) and Cyclic Voltammetry (CV) measurements. In addition to corrosion mitigation properties, the long-term adhesion performance of the coatings was evaluated by measuring the adhesion of the coatings to the SS304 substrate after 60 days of exposure to 3.5 wt% NaCl medium. The effects of graphene loading on the impact resistance, flexibility, and UV stability of the coating are analyzed and discussed. SEM was utilized to evaluate post adhesion and UV stability results. The results indicate that very low graphene loading up to 0.5 wt % significantly enhances the corrosion protection, UV stability, and impact resistance of epoxy coatings.

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“…In addition, there have been studies into using thermal reduction at different temperatures to obtain FGSs of varying degrees of functionalization [22]; these FGSs were subsequently added into polymer matrices of composites and the resultant electrochemical properties were investigated [23]. Recently, some studies reported the anticorrosive capabilities of composites containing graphenebased materials such as GNSs and GO [24][25][26][27]; however, there have been no reports on the addition of FGSs with different degrees of functionalization to PMMA matrices of composites and the resultant impact on the anticorrosive properties. Therefore, in this study, we present the first comparison of the anticorrosive properties of PMMA/thermally reduced graphene oxide (TRG) composite (PTC) coatings featuring TRGs with varying carboxylic-group contents.…”

Section: Introductionmentioning

confidence: 99%

The effect of varying carboxylic-group content in reduced graphene oxides on the anticorrosive properties of PMMA/reduced graphene oxide composites

Chang¹,

Ji²,

Li³

et al. 2014

Express Polym. Lett.

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Abstract.We present comparative studies on the effect of varying the carboxylic-group content of thermally reduced graphene oxides (TRGs) on the anticorrosive properties of as-prepared poly(methyl methacrylate) (PMMA)/TRG composite (PTC) coatings. TRGs were formed from graphene oxide (GO) by thermal exfoliation. The as-prepared TRGs were then characterized using Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). Subsequently, the PTC materials were prepared via a UV-curing process and then characterized using FTIR spectroscopy and transmission electron microscopy (TEM). PTC coatings containing TRGs with a higher carboxylic-group content exhibited better corrosion protection of a cold-rolled steel electrode that those with a lower carboxylic-group content. This is because the well-dispersed TRG with a higher carboxylic-group content embedded in the PMMA matrix effectively enhances the oxygen barrier properties of the PTC. This conclusion was supported by gas permeability analysis.

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Advanced anticorrosive coatings prepared from electroactive polyimide/graphene nanocomposites with synergistic effects of redox catalytic capability and gas barrier properties

Cited by 84 publications

References 54 publications

Polyamide blend-based nanocomposites: A review

Polyamide blend-based nanocomposites: A review

Enhanced protective properties and UV stability of epoxy/graphene nanocomposite coating on stainless steel

The effect of varying carboxylic-group content in reduced graphene oxides on the anticorrosive properties of PMMA/reduced graphene oxide composites

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