Graphene oxide–cerium oxide hybrids for enhancement of mechanical properties and corrosion resistance of epoxy coatings

Ma, Li; Wang, Xuanbo; Wang, Jinke; Zhang, Juantao; Yin, Chengxian; Fan, Lei; Zhang, Dawei

doi:10.1007/s10853-021-05932-z

Cited by 55 publications

(12 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A very interesting invention was reported by Yang et al [ 23 ] who applied highly absorptive β-cyclodextrin modified GO composites to remove organic dyes from wastewater. Ma et al [ 24 ] synthesised graphene oxide–cerium oxide (GO–CeO2) hybrids through an in situ hydrothermal approach and incorporated them into epoxy resin to prepare a robust coating for aluminium alloy protection. Lyn et al [ 25 ] prepared active packaging from chitosan (CS) incorporated with GO to maintain the quality and extend the storage life of palm-oil based margarine.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical, Bacteriostatic, and Biological Properties of Starch/Chitosan Polymer Composites Modified by Graphene Oxide, Designed as New Bionanomaterials

et al. 2021

View full text Add to dashboard Cite

The application of natural polymer matrices as medical device components or food packaging materials has gained a considerable popularity in recent years, this has occurred in response to the increasing plastic pollution hazard. Currently, constant progress is being made in designing two-component or three-component systems that combine natural materials which help to achieve a quality comparable to the purely synthetic counterparts. This study describes a green synthesis preparation of new bionanocomposites consisting of starch/chitosan/graphene oxide (GO), that possess improved biological activities; namely, good tolerability by human cells with concomitant antimicrobial activity. The structural and morphological properties of bionanocomposites were analyzed using the following techniques: dynamic light scattering, scanning and transmission electron microscopy, wettability and free surface energy determination, and Fourier transform infrared spectroscopy. The study confirmed the homogenous distribution of GO layers within the starch/chitosan matrix and their large particle size. The interactions among the components were stronger in thin films. Additionally, differential scanning calorimetry analysis, UV–vis spectroscopy, surface colour measurements, transparency, water content, solubility, and swelling degree of composites were also performed. The mechanical parameters, such as tensile strength and elongation at break (EAB) were measured in order to characterise the functional properties of obtained nanocomposites. The GO additive altered the thermal features of the composites and decreased their brightness. The EAB of composite was improved by the introduction of GO. Importantly, cell-based analyses revealed no toxic effect of the composites on HaCat keratinocytes and HepG2 hepatoma cells, although a pronounced bacteriostatic effect against various strains of pathogenic bacteria was observed. In conclusion, the starch/chitosan/GO nanocomposites reveal numerous useful physicochemical and biological features, which make them a promising alternative for purely synthetic materials.

show abstract

Section: Introductionmentioning

confidence: 99%

Physicochemical, Bacteriostatic, and Biological Properties of Starch/Chitosan Polymer Composites Modified by Graphene Oxide, Designed as New Bionanomaterials

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The core-level spectra of Ce 3d are displayed in Figure 3(d) and 3(e). The high-resolution spectra of Ce 3d 5/2 and Ce 3d 3/2 levels in the binding energy range between 875–895 eV and 893–925 eV were resolved into eight peaks after deconvolution (Ma et al , 2021). The Ce 3d peaks of Ce 3+ are located at 904.19 and 885.82 eV, and the peaks of Ce 3d at 916.98, 898.42, 900.91, 882.58, 888.94 and 907.84 eV are associated with Ce 4+ .…”

Section: Resultsmentioning

confidence: 99%

Cerium dioxide modified with fumaric acid as corrosion inhibitor for epoxy coatings on Q235

Dong

Zhang

et al. 2023

ACMM

View full text Add to dashboard Cite

Purpose The purpose of this study is to modify cerium dioxide with fumaric acid (CeO2-f) to improve its compatibility and dispersibility in epoxy resin and to investigate the effect of the content on the coating performance. Design/methodology/approach To investigate whether CeO2-f reacts with epoxy resin by ring opening, CeO2-f and epoxy resin-treated CeO2-f (Ce CeO2-f/EP) were analyzed by infrared radiation (IR), X-ray diffraction (XRD) and ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis). To reveal the effect of different content on coatings properties, neutral salt spray test (NSST) and electrochemical test were performed. Findings The results of IR, XRD, X-ray photoelectron spectroscopy and UV-Vis indicated that fumaric acid attached to the CeO2 surface by chemical bonding and underwent a ring-opening reaction with epoxy resin, thus, improving the compatibility of CeO2 in epoxy resin. NSST and electrochemical impedance spectroscopy results showed that the coatings containing 5% CeO2-f exhibited the optimal corrosion resistance. The reason is that a dense conversion film was established on the substrate surface. Originality/value The epoxy coatings using CeO2-f as fillers with synergistic inhibition ability are promising for the protection of carbon steel.

show abstract

“…Both fillers enter the defects of epoxy resin coatings to realize the connection of the porous matrix, in which way the cross‐linking density of epoxy resin is improved and the free volume of coating is reduced 31,32 . As for the adhesion strength, MMA/NBR/GO can also increase the adhesion strength of the coatings, which can be ascribed to that MMA/NBR/GO can release the residual stress inside the coating 33 . The optimal filler contents of MMA/NBR/GO in epoxy resin is 2 wt% and further addition degrades the adhesion strength due to defects in the coating (Figure 1).…”

Section: Resultsmentioning

confidence: 99%

“…31,32 As for the adhesion strength, MMA/NBR/ GO can also increase the adhesion strength of the coatings, which can be ascribed to that MMA/NBR/GO can release the residual stress inside the coating. 33 The optimal filler contents of MMA/NBR/GO in epoxy resin is 2 wt% and further addition degrades the adhesion strength due to defects in the coating (Figure 1). The impact strength for all coatings approximates.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Effect of methyl methacrylate/nitrile rubber/graphene oxide on the anticorrosion and mechanical properties of epoxy‐based coating

Wan

Wang²,

Wang³

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

Graphene oxide has a wide application prospect as filler due to its excellent physical blocking, coating reinforcement, and cathodic protection properties. However, graphene oxide is highly susceptible to agglomerative reunions.Three types of anti-corrosion coatings were prepared on 5083 Al alloy by a simple smearing method. The coatings are based on neat epoxy resin by introducing different amounts of graphene oxide, methyl methacrylate/nitrile rubber, and methyl methacrylate/nitrile rubber/ graphene oxide fillers. Thermogravimetric analysis (TGA) results show that methyl methacrylate/nitrile rubber/graphene oxide fillers enhance the thermal stability of the epoxy resin-based coatings. The SEM morphology shows the well-dispersed methyl methacrylate/nitrile rubber/graphene oxide in the coating. The 2 and 1 wt% methyl methacrylate/nitrile rubber/graphene oxide coating exhibits excellent mechanical properties and outstanding anti-corrosion properties, respectively. At 1 wt%, the OCP of the coating is À0.21 V. Additionally, the coating exhibits great anti-corrosion performance after immersion for 196 h. Compared to the pristine coating and methyl methacrylate/nitrile rubber coatings, the methyl methacrylate/nitrile rubber/graphene oxide coatings show better thermal stability, mechanical properties and anti-corrosion properties. The methyl methacrylate/nitrile rubber fillers degrade the thermal stability and anti-corrosion protection and do not affect mechanical properties. Compared with graphene oxide coatings, the surface of methyl methacrylate/nitrile rubber/graphene oxide coatings is smoother with better dispersion, possessing better mechanical and anti-corrosion properties though only a fewer amounts of graphene oxide were filled in epoxy resin. The better corrosion resistance of the coating can be attributed to the synergistic effect of a physical barrier and a coulomb block.

show abstract

Graphene oxide–cerium oxide hybrids for enhancement of mechanical properties and corrosion resistance of epoxy coatings

Cited by 55 publications

References 53 publications

Physicochemical, Bacteriostatic, and Biological Properties of Starch/Chitosan Polymer Composites Modified by Graphene Oxide, Designed as New Bionanomaterials

Physicochemical, Bacteriostatic, and Biological Properties of Starch/Chitosan Polymer Composites Modified by Graphene Oxide, Designed as New Bionanomaterials

Cerium dioxide modified with fumaric acid as corrosion inhibitor for epoxy coatings on Q235

Effect of methyl methacrylate/nitrile rubber/graphene oxide on the anticorrosion and mechanical properties of epoxy‐based coating

Contact Info

Product

Resources

About