Nanoferrite dispersed waterborne epoxy-acrylate: Anticorrosive nanocomposite coatings

Rahman, Obaid Ur; Kashif, Mohd; Ahmad, Sharif

doi:10.1016/j.porgcoat.2014.11.023

Cited by 121 publications

(57 citation statements)

References 50 publications

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“…In this regard, epoxy resin is widely employed as the polymeric binder due to its excellent chemical stability, outstanding corrosion resistance, strong adhesion/affinity to heterogeneous materials. 2,3 Nonetheless, the successful application of anti-corrosive epoxy coatings was hampered due to intrinsic characteristics and external hazards. 4 Epoxy resins are inherently brittle and therefore show poor resistance to the initiation and propagation of cracks.…”

Section:  Introductionmentioning

confidence: 99%

Synergistic effect of hybrid graphene oxide-aluminum dihydric tripolyphosphate in epoxy-based anticorrosive coatings

Song¹,

Liu²,

Zhu³

et al. 2020

Preprint

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ADTP-GO hybrid was prepared from multi-layered aluminum dihydric tripolyphosphate (ADTP) and flake-shaped graphene oxide (GO) by a coupling method using (3-aminopropyl) triethoxysilane (ASi) as the coupling agent. Characterization analyses of the hybrid were performed by FT-IR, XRD and SEM. The effect of incorporating 2wt% ADTP-GO hybrid on corrosion inhibition performance of epoxy coating was evaluated in 3.5wt.% NaCl aqueous solution by using Tafel and electrochemical impedance spectroscopy (EIS) analysis. For comparison, the effects of ADTP and GO, alone and in combination without coupling treatment were also evaluated. FT-IR and XRD showed the presence of the chemical interaction between ADTP and GO in ADTP-GO hybrid. SEM indicated that GO was spread on the surface of ADTP layers in the hybrid. Tafel and EIS data indicated that the hybrid displayed an anti-corrosion performance superior to ADTP/GO blend without coupling treatment. The superiority was attributed to the stronger synergetic effect of ADTP and GO in ADTP-GO hybrid than in ADTP/GO blend. Additionally, epoxy/ADTP/GO coating was better than pure epoxy, epoxy/ADTP, and epoxy/GO coatings in the anti-corrosion performance on mild steel. It seems that the combination of ADTP and GO produced synergistic effect, and the synergistic effect was more obvious after chemical coupling.

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Section:  Introductionmentioning

confidence: 99%

Synergistic effect of hybrid graphene oxide-aluminum dihydric tripolyphosphate in epoxy-based anticorrosive coatings

Song¹,

Liu²,

Zhu³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…One of the most cost-effective ways to prevent metal corrosion is the physical barrier coating, which creates an effective barrier between the metal substrate and the corrosive environment [1]. Epoxy resin coatings have been widely been in the coating industry due to these stable chemical properties, excellent electrical insulation rot, low cure shrinkage, high tensile strength and strong adhesion, and as the most effective method to inhibiting corrosion of the metal substrate [2,3]. However, the traditional epoxy resin anticorrosive coatings are typical solvent-based coating systems, which contain a certain proportion of volatile organic compounds (VOCs) that cause health hazards and environmental problems.…”

Section: Introductionmentioning

confidence: 99%

Polydopamine Modified Graphene Oxide-TiO2 Nanofiller for Reinforcing Physical Properties and Anticorrosion Performance of Waterborne Epoxy Coatings

et al. 2019

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Nano-polydopamine-graphene oxide-TiO2 (nano-PDA@GO-TiO2) composites were prepared by dopamine modified graphene oxide (GO) and loaded nano-TiO2 on the surface of GO. The structure and morphology of nano-PDA@GO-TiO2 composites were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman, X-ray photoelectron spectroscopy (XPS), Scanning electron microscope (SEM), and Transmission electron microscope (TEM) Results demonstrate that the introduction of dopamine to functionalize the GO could self-polymerize polydopamine (PDA) on the surfaces of the GO and endow abundant chemical groups reduce the GO. The interaction between the GO and nano-TiO2 particles could prevent graphene nanosheets from restacking and nano-TiO2 particles from agglomeration. Nano-PDA@GO-TiO2 composite material was used as the nano-filler, and nano-PDA@GO-TiO2 composites waterborne epoxy resin coatings (PGT/WEP) were prepared by dispersing a different content of nano-PDA@GO-TiO2 composites into waterborne epoxy resin with the help of ultrasonic dispersion and mechanical agitation. The physical properties of PGT/WEP coatings, such as hardness, impact resistance, and adhesion, were tested and the electrochemical performance was evaluated. The results show that dispersing 2% nano-PDA@GO-TiO2 composites in waterborne epoxy resin could significantly improve the physical properties and corrosion resistance of waterborne epoxy resin coating when compared with pure waterborne epoxy coating.

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“…[1][2][3][4] To alleviate the problem, waterborne varnish has been recognized due to its environmental friendliness and low toxicity. [5][6][7][8] Owing to its high adhesion, outstanding corrosion resistance and good insulation, epoxy resin has been widely used as an important industrial raw material in metal corrosion protection, 9,10 waterproof, 11,12 adhesive, 13,14 insulation, 15,16 and other industrial fields.…”

Section: Introductionmentioning

confidence: 99%

“…17,18 Much valuable work has been done on the investigation of waterborne epoxy resin 19,20 or waterborne polymer composites based on epoxy resin. 1,8,21,22 Seed oils have been traditionally used as resins or components in organic coatings, 23,24 due to their appealing advantages such as easy availability, environmental friendliness, inherent biodegradability, 25 low cost, and easy modification. [26][27][28] Tung oil, a kind of seed oils extracted from the seeds of tung tree, is a promising resultant material in China, 29 which shows the advantages of faster drying, better water resistance and higher hardness.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of epoxy‐modified tung oil waterborne insulation varnish

Cao

Wang

Cai

et al. 2015

J of Applied Polymer Sci

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This work aimed to develop a novel epoxy-modified tung oil waterborne insulation varnish with blocked hexamethylene diisocyanate as a curing agent. The Diels-Alder reaction between tung oil and maleic anhydride, and the ring-opening esterification reaction of epoxy resin were confirmed. The conversion rate of epoxy was explored as a function of reaction time and temperature. The effects of epoxy resin content on the thermal stability, water absorption and insulation properties (insulation strength, volume resistivity, and surface resistivity) of films were investigated, and the resistances of films to salted water were evaluated. The increase in epoxy resin contents could improve the thermal stability and insulation properties of films, and decreased the water adsorption of films, but when the epoxy resin content reached 30% and above, the water solubility of resin became poor. After being immersed in 3.5 wt % NaCl solution, the electrical insulation strength of films were lower than that in dry state, and decreased as the immersed time prolonged. In particular, the electrical insulation strength loss of films increased significantly for epoxy resin content at 15% and below. Furthermore, the increase of epoxy resin content could improve the hardness and adhesion of films, but the flexibility of films became worse. On the basis of experimental, the epoxy resin content at 25% was appropriate to prepare waterborne epoxy-modified tung oil resin. The resulting varnish may have potential as an immersing insulation varnish for the spindle of electric motor. V C 2015Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42755.

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Nanoferrite dispersed waterborne epoxy-acrylate: Anticorrosive nanocomposite coatings

Cited by 121 publications

References 50 publications

Synergistic effect of hybrid graphene oxide-aluminum dihydric tripolyphosphate in epoxy-based anticorrosive coatings

Synergistic effect of hybrid graphene oxide-aluminum dihydric tripolyphosphate in epoxy-based anticorrosive coatings

Polydopamine Modified Graphene Oxide-TiO2 Nanofiller for Reinforcing Physical Properties and Anticorrosion Performance of Waterborne Epoxy Coatings

Preparation and properties of epoxy‐modified tung oil waterborne insulation varnish

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