Self-aligned graphene as anticorrosive barrier in waterborne polyurethane composite coatings

Li, Yaya; Yang, Zhenzhen; Qiu, Hanxun; Dai, Yigang; Zheng, Qingbin; Li, Jing; Yang, Jing

doi:10.1039/c4ta02262a

Cited by 199 publications

(118 citation statements)

References 29 publications

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“…Gr has attracted considerable attention owing to its extraordinary electrical and physical properties, especially its impermeable nature [32][33][34]. There are a number of studies showing that adding Gr and its derivatives to a polymer coating can enhance the corrosion performance of the coating [19][20][21][22][23][24][25][26][27][28][29][30][31]. Yu et al [19] reported that the corrosion protection efficiency increased from 37.90% to 99.53% with the incorporation of 2 wt.% modified GO in the polystyrene polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

“…They showed that the incorporation of a small number of nanoparticles-especially Fe 2 O 3 and halloysite clay-into the epoxy coating can enhance the corrosion resistance of the epoxy-coated steel. In recent years, it was reported that carbon derivatives, such as carbon nanotubes (CNTs) [16][17][18], graphene (Gr) and graphene oxide (GO) [19][20][21][22][23][24][25][26][27][28][29][30][31] can be used as anti-corrosion additives to organic coatings. Gr has attracted considerable attention owing to its extraordinary electrical and physical properties, especially its impermeable nature [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

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Development and Characterization of Anticorrosion and Antifriction Properties for High Performance Polyurethane/Graphene Composite Coatings

2018

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Abstract:This work contributes to the development and characterization of the corrosion resistance and antifriction properties of high performance polyurethane (PU)/graphene (Gr) composite coating. In this study, PU composite coatings containing 0, 2, 4 and 8 wt.% of Gr were prepared and evaluated using various corrosion and mechanical tests, namely electrochemical impedance spectroscopy, salt spray tests, cross-cut tape tests and dynamic mechanical analysis. Antifriction properties of the coatings were evaluated using a tribometer with a ball-on-disc mode at room temperature. The corrosion resistance and adhesion property of the PU coatings were found to be enhanced by adding 4 and 8 wt.% of Gr. The coefficient of friction revealed that the antifriction properties of the PU/Gr composite coatings were 61% lower than those of the conventional coating when the Gr content was increased to 8 wt.%.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development and Characterization of Anticorrosion and Antifriction Properties for High Performance Polyurethane/Graphene Composite Coatings

2018

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“…A fragment ion m/z 179 showed a glucose unit contained in the molecule. 12,[24][25][26] Based on the analyses of the five authentic compounds, it was concluded that their fragmentation patterns were corresponded to their structural characteristics. + ions, and these ions were selected to trace the structural information of the aglycone.…”

Section: Investigation Of Authentic Glycosides By Lc-esi-lit/ms N Andmentioning

confidence: 99%

Identification of Glycoside Compounds from Tobacco by High Performance Liquid Chromatography/Electrospray Ionization Linear Ion-Trap Tandem Mass Spectrometry Coupled with Electrospray Ionization Orbitrap Mass Spectrometry

Jia¹,

Zhu²,

Zhang³

et al. 2016

J. Braz. Chem. Soc.

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In order to comprehensively screen and identify the glycoside compounds in tobacco, a simple, rapid and sensitive method of high performance liquid chromatography/electrospray ionization linear ion-trap tandem mass spectrometry (HPLC-ESI-LIT/MS n ) coupled with electrospray ionization orbitrap mass spectrometry (ESI-Orbitrap-MS) was developed for the first time. As a result, twenty-two glycoside compounds, including eleven alcoholic glycosides, eight phenolic glycosides, two ester glycosides and an indole glycoside, were reliably identified from tobacco with high mass accuracy (within 5 mDa). Among them, four compounds were confirmed as novel molecules and other four compounds, as far as we know, were not reported previously in tobacco. This study provided a useful tool to identify the new structures of glycoside compounds in natural products, especially when there were no reference compounds available.

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“…Graphene possesses good anticorrosive characteristics, high mechanical properties, high transparency, and chemical and thermal stability for use as a coating material . Wang et al .…”

Section: Polyurethane/nanocarbon Nanocomposite Coatingsmentioning

confidence: 99%

Polyurethane nanocomposite coatings: state of the art and perspectives

Kausar

2018

Polymer International

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This paper offers a state‐of‐the‐art overview on vital aspects of polyurethane‐based nanocomposite coatings. Nano‐modified developments in polyurethane coatings have led to the current status and new opportunities for the formation of high performance coatings. Nanocarbon such as carbon nanotube, nanodiamond, graphene and its derivatives as well as inorganic nanoparticles have been employed as coating reinforcements. A brief description of various categories of polyurethane nanocomposite coatings is presented. Here, polyurethane/nanocarbon nanocomposites reveal multifunctional properties and high performance owing to the synergistic effect of polymer and nanofiller compared with neat polyurethane coatings and other nanocomposite coating materials. Incidentally, the type of nanoparticle, nanofiller content, polyurethane structure, processing technique and conditions may affect the final nanocomposite properties. The review also focuses on the worth of polyurethane nanocomposites in the coating sector. Consequently, the cutting edge application areas of polyurethane nanocomposite coatings such as corrosion protection, textiles, biomaterials and other technical fields are addressed. It is important to understand the challenges of weathering‐induced degradation in polyurethane nanocomposite coatings. The wide range of polyurethane nanocomposite coatings may be attained using versatility in the selection of monomeric materials. Moreover, modification of nanofillers and incorporation in appropriate polyurethane matrices can be adopted as a powerful tool to widen the applicability of nanocomposite coatings in advanced future applications. © 2018 Society of Chemical Industry

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Self-aligned graphene as anticorrosive barrier in waterborne polyurethane composite coatings

Abstract: Graphene reinforced waterborne polyurethane composite coatings were fabricated on steel surfaces. Superior anticorrosion properties were achieved by the addition of 0.4 wt% self-aligned graphene.

Cited by 199 publications

References 29 publications

Development and Characterization of Anticorrosion and Antifriction Properties for High Performance Polyurethane/Graphene Composite Coatings

Development and Characterization of Anticorrosion and Antifriction Properties for High Performance Polyurethane/Graphene Composite Coatings

Identification of Glycoside Compounds from Tobacco by High Performance Liquid Chromatography/Electrospray Ionization Linear Ion-Trap Tandem Mass Spectrometry Coupled with Electrospray Ionization Orbitrap Mass Spectrometry

Polyurethane nanocomposite coatings: state of the art and perspectives

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