Effect of nano-sized mesoporous silica MCM-41 and MMT on corrosion properties of epoxy coating

Wang, Na; Cheng, K. Q.; Wu, Haixia; Wang, Cheng; Wang, Qunchang; Wang, Fuhui

doi:10.1016/j.porgcoat.2012.07.009

Cited by 64 publications

(25 citation statements)

References 30 publications

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“…Epoxy resin (EP) has been widely used as an adhesive, a coating, and an automotive and aeronautics material in many fields due to its excellent chemical resistance, mechanical behavior, and electrical insulating properties [1][2][3]. However, the wear resistance of pure EP is poor, which is mainly due to the 3D network structure formed during curing, and the self-lubricity of the polymer is not exhibited for cracks generated under friction conditions [4,5].…”

Section: Introductionmentioning

confidence: 99%

Tribological and anti-corrosion performance of epoxy resin composite coatings reinforced with differently sized cubic boron nitride (CBN) particles

Huang

Zhao

et al. 2020

Friction

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A series of high solid content (30 wt%) epoxy resin (EP) composite coatings reinforced with differently sized cubic boron nitride (CBN) particles were fabricated successfully on 304L stainless steel. Polydopamine (PDA) was used to improve the dispersibility of CBN particles in EP. The structural and morphological features of the CBN particles and the composite coatings were characterized by Raman spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Moreover, a UMT-3 tribometer and surface profiler were used to investigate the tribological behaviors of the as-prepared composite coatings. Electrochemical impedance spectroscopy (EIS) and Tafel analysis were used to investigate the coatings' anti-corrosion performance. The results demonstrated that the CBN fillers could effectively enhance the tribological and anti-corrosion properties of the EP composite coatings. In addition, when the additive proportion of the microsized (5 μm) and nanosized (550 nm) CBN particles was 1:1, the tribological property of the EP composite coatings was optimal for dry sliding, which was attributed to the load carrying capability of the microsized CBN particles and the toughening effect of the nanosized CBN particles. However, when the additive proportion of the microsized and nanosized CBN particles was 2:1, the tribology and corrosion resistance performance were optimal in seawater conditions. We ascribed this to the load-carrying capacity of the microparticles, which played a more important role under the seawater lubrication condition, and the more compact structure, which improved the electrolyte barrier ability for the composite coatings.

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Section: Introductionmentioning

confidence: 99%

Tribological and anti-corrosion performance of epoxy resin composite coatings reinforced with differently sized cubic boron nitride (CBN) particles

Huang

Zhao

et al. 2020

Friction

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“…Meso-TiO 2 not only has nanoscale size, but also has the unique pore structure compared with normal nanoparticles which could improve the anti-aging properties and barrier properties of the coating. In our previous work, we proved that waterborne epoxy resin has better anticorrosion properties due to the addition of MCM-41 and we also proved that meso-TiO 2 can increase the barrier performance of the coatings more availably due to the larger pore size of meso-TiO 2 than MCM-41 [1,11]. However, due to high surface tension of water, the compatibility between waterborne epoxy matrix and filler is poor.…”

Section: Introductionmentioning

confidence: 69%

Corrosion Resistance of Waterborne Epoxy Coatings by Incorporation of Dopamine Treated Mesoporous-TiO2 Particles

et al. 2018

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Abstract:In this paper, waterborne epoxy (EP) coatings were modified by the incorporation of synthetic structure (DA/meso-TiO 2 ) to improve the anticorrosion ability of waterborne epoxy coatings for steel structures. Fourier transform infrared spectroscopy (FTIR), nitrogen adsorption-desorption, X-ray diffraction (XRD) and thermo-gravimetric analyses (TGA) were used to characterize textural properties of DA/meso-TiO 2 . Corrosion performances of mild carbon steel coated samples were tested by salt spray tests and employing electrochemical impedance spectroscopy (EIS). FTIR, XRD, TGA and nitrogen adsorption-desorption attested to dopamine polymerization within the mesopores and on the surface of meso-TiO 2 . The results of EIS and salt spray test showed that the specimen coated with 1.0 wt % DA/meso-TiO 2 exhibited optimum corrosion performance among other coating specimens.

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“…As shown in Figure 6b-f, the resistance value of this coating was greater than 1.0 × 10 7 Ω·cm 2 when the immersion time reached 192 h. This value was nearly one order of magnitude greater than the resistance of the pure epoxy coating, which indicated that the coating containing ZSM-5-NH-GO exhibited better barrier properties. After an immersion time of 480 h, the neat epoxy coating failed, but the resistance value of the coating with ZSM-5-NH-GO remained above 2.1 × 10 6 Ω·cm 2 -nearly the same resistance as that of the neat epoxy coating at 192 h. This high resistance is attributed to the ZSM-5-NH-GO occupying small hole defects formed from local shrinkage during the curing of the epoxy resin [15]. After 700 h, the EIS spectra of all of the coatings showed a second semicircle in the low-frequency region, except the coating with 0.7 wt % ZSM-5-NH-GO.…”

Section: Electrochemical Impedance Spectroscopy Of the Coatingsmentioning

confidence: 90%

“…The barrier properties of organic coatings can be improved by nanoparticulate fillers [15]. Various reports have shown that the corrosion resistances of coatings can be improved with the addition of nanoparticles such as TiO2 [16], SiO2 [17], and ZnO [18].…”

Section: Introductionmentioning

confidence: 99%

Effect of Graphene Oxide/ZSM-5 Hybrid on Corrosion Resistance of Waterborne Epoxy Coating

et al. 2018

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Abstract:In this study, the preparation of modified graphene oxide (GO) synergistic structure (ZSM-5-NH-GO) and the effect of this structure on the corrosion performance of epoxy coatings were investigated. The structural and morphological properties of ZSM-5-NH-GO were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The corrosion performances were studied by electrochemical impedance spectroscopy (EIS) and salt spray tests. The EIS results showed that the corrosion resistance of steel substrate was considerably improved by ZSM-5-NH-GO. The salt spray tests demonstrated that the ZSM-5-NH-GO coating provided strong corrosion performance for steel substrate. The mechanical properties of the epoxy-composite coatings containing ZSM-5-NH-GO were studied by adhesion tests. The above results indicated that the composite coating containing 0.7 wt % ZSM-5-NH-GO composite possessed most excellent anti-corrosion performance compared with other epoxy coatings.

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Effect of nano-sized mesoporous silica MCM-41 and MMT on corrosion properties of epoxy coating

Cited by 64 publications

References 30 publications

Tribological and anti-corrosion performance of epoxy resin composite coatings reinforced with differently sized cubic boron nitride (CBN) particles

Tribological and anti-corrosion performance of epoxy resin composite coatings reinforced with differently sized cubic boron nitride (CBN) particles

Corrosion Resistance of Waterborne Epoxy Coatings by Incorporation of Dopamine Treated Mesoporous-TiO2 Particles

Effect of Graphene Oxide/ZSM-5 Hybrid on Corrosion Resistance of Waterborne Epoxy Coating

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